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"permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-7721c3bcabe5", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-05-18", "inspection_date": "2026-05-12", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 78, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-05-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.61, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.4, "quantity": "square metres" }, "party_wall_length": { "value": 11.32, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 20.29, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.61, "quantity": "metres" }, "total_floor_area": { "value": 39.04, "quantity": "square metres" }, "party_wall_length": { "value": 19.86, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.72, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1087, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 63, "lighting_cost_current": { "value": 52, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "blocked_chimneys_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 683, "currency": "GBP" }, "hot_water_cost_current": { "value": 303, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 82, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 312, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": { "value": 92, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 77 }, { "sequence": 3, "typical_saving": { "value": 219, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 52, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 303, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2270.95, "space_heating_existing_dwelling": 11299.82 }, "draughtproofed_door_count": 0, "energy_consumption_current": 230, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 135, "environmental_impact_current": 64, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 41, "low_energy_fixed_lighting_bulbs_count": 9, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-5feecdf1b6b9": { "uprn": 100070379686, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Pitched, insulated", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-04-07 04:36:01", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.8, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.15, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.7, "draught_proofed": "true", 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"RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-3dbc0bee2aea", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-04-07", "inspection_date": "2026-04-05", "extensions_count": 3, "measurement_type": 1, "total_floor_area": 81, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-04-07", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 30, "quantity": "square metres" }, "party_wall_length": { "value": 8.7, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 13.3, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.7, "quantity": "metres" }, "total_floor_area": { "value": 30, "quantity": "square metres" }, "party_wall_length": { "value": 8.7, "quantity": "metres" }, "heat_loss_perimeter": { "value": 4.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6, "quantity": "square metres" }, "party_wall_length": { "value": 2.7, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 2.7, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 6, "quantity": "square metres" }, "party_wall_length": { "value": 2.7, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.1, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6, "quantity": "square metres" }, "party_wall_length": { "value": 2.6, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "G", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" }, { "identifier": "Extension 3", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 1, "roof_construction": 4, "wall_construction": 3, "building_part_number": 4, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 2.6, "quantity": "square metres" }, "party_wall_length": { "value": 8.7, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 0.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1240, "currency": 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"improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 70 }, { "sequence": 3, "typical_saving": { "value": 52, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 71 }, { "sequence": 4, "typical_saving": { "value": 205, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 72 } ], "co2_emissions_potential": 2.5, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 55, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 226, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2463.02, "space_heating_existing_dwelling": 11637.51 }, "draughtproofed_door_count": 0, "energy_consumption_current": 257, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0335", "energy_consumption_potential": 165, "environmental_impact_current": 58, "current_energy_efficiency_band": "D", "environmental_impact_potential": 72, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 47, "low_energy_fixed_lighting_bulbs_count": 15, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-894934ab33f8": { "uprn": 100070379693, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Pitched, no insulation", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-03-26 14:32:57", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17507 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.08, "window_height": 1.26, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 0.59, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.59, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.02, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.02, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.02, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.02, "window_height": 0.82, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.27, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-7cd09563a109", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-03-26", "inspection_date": "2026-03-26", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 76, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-03-26", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 230, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.73, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 35.32, "quantity": "square metres" }, "party_wall_length": { "value": 12.47, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 17.67, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.73, "quantity": "metres" }, "total_floor_area": { "value": 35.32, "quantity": "square metres" }, "party_wall_length": { "value": 20.67, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11.23, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 230, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.73, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 4.94, "quantity": "square metres" }, "party_wall_length": { "value": 2.81, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.57, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1066, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 63, "lighting_cost_current": { "value": 53, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 698, "currency": "GBP" }, "hot_water_cost_current": { "value": 175, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 82, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 304, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 71 }, { "sequence": 2, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 207, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 74 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 77, "lighting_cost_potential": { "value": 53, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 175, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2353.87, "space_heating_existing_dwelling": 12453.68 }, "draughtproofed_door_count": 0, "energy_consumption_current": 256, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0335", "energy_consumption_potential": 158, "environmental_impact_current": 60, "current_energy_efficiency_band": "D", "environmental_impact_potential": 74, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 47, "low_energy_fixed_lighting_bulbs_count": 17, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-9f4ab271ddc3": { "uprn": 100070379703, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 0, "built_form": 4, "created_at": "2026-02-10 23:29:25", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": 1, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10328 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": { "value": 1.5, "quantity": "m" }, "window_height": { "value": 1.9, "quantity": "m" }, "draught_proofed": "true", 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1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-1eb2cbc4e972", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-02-10", "inspection_date": "2026-01-15", "extensions_count": 1, "measurement_type": 1, "open_flues_count": 0, "total_floor_area": 75, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "other_flues_count": 0, "registration_date": "2026-02-10", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 0, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.74, "floor_insulation": 1, "total_floor_area": 33.62, "party_wall_length": 19.6, "floor_construction": 2, "heat_loss_perimeter": 8 }, { "floor": 1, "room_height": 2.76, "total_floor_area": 33.62, "party_wall_length": 19.6, "heat_loss_perimeter": 9.8 } ], "wall_insulation_type": 1, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.5, "floor_insulation": 1, "total_floor_area": 7.74, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": 10.4 } ], "wall_insulation_type": 4, "construction_age_band": "G", "party_wall_construction": "NA", "wall_thickness_measured": "N", "roof_insulation_location": 4, "roof_insulation_thickness": "NI", "wall_insulation_thickness": "NI" } ], "boilers_flues_count": 0, "open_chimneys_count": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 746, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.6, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 49, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "blocked_chimneys_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 708, "currency": "GBP" }, "hot_water_cost_current": { "value": 196, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "schema_version_current": "LIG-21.0", "suggested_improvements": [ { "sequence": 1, "typical_saving": 38, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 72 }, { "sequence": 2, "typical_saving": 262, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 83, "environmental_impact_rating": 74 } ], "co2_emissions_potential": 2.2, "energy_rating_potential": 83, "lighting_cost_potential": { "value": 49, "currency": "GBP" }, "schema_version_original": "LIG-21.0", "hot_water_cost_potential": { "value": 196, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2518.44, "space_heating_existing_dwelling": 8037.61 }, "draughtproofed_door_count": 2, "energy_consumption_current": 189, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "10.2.2.0", "energy_consumption_potential": 160, "environmental_impact_current": 70, "cfl_fixed_lighting_bulbs_count": 0, "current_energy_efficiency_band": "C", "environmental_impact_potential": 74, "led_fixed_lighting_bulbs_count": 10, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 35, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-923321a0125c": { "uprn": 100070379687, "roofs": [ { "description": "Pitched, 175 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Pitched, 150 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "To external air, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 8 ] }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-09-15 19:50:00", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18119 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 2, "window_height": 2.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.69, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.05, "window_height": 1.77, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.04, "window_height": 1.78, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 0.67, "window_height": 1.5, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.86, "window_height": 1.67, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-0318d1055a02", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-09-15", "inspection_date": "2025-09-09", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 71, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2025-09-15", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 2, "photovoltaic_supply": [ [ { "pitch": 2, "peak_power": 1.68, "orientation": 3, "overshading": 1 } ], [ { "pitch": 2, "peak_power": 1.26, "orientation": 7, "overshading": 1 } ] ], "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "true", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "lzc_energy_sources": [ 11 ], "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 275, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.86, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 28.28, "quantity": "square metres" }, "party_wall_length": { "value": 8.18, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 14.28, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.83, "quantity": "metres" }, "total_floor_area": { "value": 27.65, "quantity": "square metres" }, "party_wall_length": { "value": 8.18, "quantity": "metres" }, "heat_loss_perimeter": { "value": 4.96, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "175mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "Y", "wall_thickness": 275, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.86, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.17, "quantity": "square metres" }, "party_wall_length": { "value": 2.87, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.67, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.28, "quantity": "metres" }, "total_floor_area": { "value": 5.17, "quantity": "square metres" }, "party_wall_length": { "value": 2.87, "quantity": "metres" }, "heat_loss_perimeter": { "value": 4.67, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "Y", "wall_thickness": 275, "floor_heat_loss": 1, "roof_construction": 4, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.83, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 4.83, "quantity": "square metres" }, "party_wall_length": { "value": 8.18, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 1.18, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "175mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 831, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.5, "energy_rating_average": 60, "energy_rating_current": 83, "lighting_cost_current": { "value": 61, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 558, "currency": "GBP" }, "hot_water_cost_current": { "value": 156, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 215, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 89, "environmental_impact_rating": 79 }, { "sequence": 2, "typical_saving": { "value": 57, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 90, "environmental_impact_rating": 81 } ], "co2_emissions_potential": 1.6, "energy_rating_potential": 90, "lighting_cost_potential": { "value": 61, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 156, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2095.27, "space_heating_existing_dwelling": 9203.61 }, "draughtproofed_door_count": 2, "energy_consumption_current": 186, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0305", "energy_consumption_potential": 120, "environmental_impact_current": 71, "cfl_fixed_lighting_bulbs_count": 9, "current_energy_efficiency_band": "B", "environmental_impact_potential": 81, "led_fixed_lighting_bulbs_count": 2, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 35, "incandescent_fixed_lighting_bulbs_count": 1 }, "cert-35e7b8fb0dd3": { "uprn": 100070379646, "roofs": [ { "description": "Pitched, 300 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-08-18 12:51:15", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.8, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 0.7, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.5, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 0.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-67504909dfe8", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-08-18", "inspection_date": "2025-08-16", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 85, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-08-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 320, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.2, "quantity": "square metres" }, "party_wall_length": { "value": 19.6, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 9.4, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.7, "quantity": "metres" }, "total_floor_area": { "value": 39.2, "quantity": "square metres" }, "party_wall_length": { "value": 19.6, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11.4, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6.4, "quantity": "square metres" }, "party_wall_length": { "value": 3.2, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "G", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 820, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.9, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 58, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 650, "currency": "GBP" }, "hot_water_cost_current": { "value": 214, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 80, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 119, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 73 }, { "sequence": 2, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 75 }, { "sequence": 3, "typical_saving": { "value": 214, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 76 } ], "co2_emissions_potential": 2.2, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 58, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 215, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2612.72, "space_heating_existing_dwelling": 8594.49 }, "draughtproofed_door_count": 0, "energy_consumption_current": 186, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0304", "energy_consumption_potential": 139, "environmental_impact_current": 69, "current_energy_efficiency_band": "C", "environmental_impact_potential": 76, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 34, "low_energy_fixed_lighting_bulbs_count": 12, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-30fe0c45d01e": { "uprn": 100070379665, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "B11 2QL", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-06-25 20:14:45", "door_count": 1, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 }, { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17507 } ], "immersion_heating_type": "NA", "secondary_heating_type": 601, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.8, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.9, 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"permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.0", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": 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"addr-f4cf82fe40cf", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-05-31", "inspection_date": "2025-05-31", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 71, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2025-05-31", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, 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"environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 577, "currency": "GBP" }, "hot_water_cost_current": { "value": 116, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 65 }, { "sequence": 2, "typical_saving": { "value": 144, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 71 }, { "sequence": 3, "typical_saving": { "value": 42, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 73 }, { "sequence": 4, "typical_saving": { "value": 40, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 75 }, { "sequence": 5, "typical_saving": { "value": 416, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 87, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 1.2, "energy_rating_potential": 87, "lighting_cost_potential": { "value": 76, "currency": "GBP" }, "schema_version_original": "20.0.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 27, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 69, "environmental_impact_rating": 66 } ], "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1793, "impact_of_loft_insulation": -501, "impact_of_cavity_insulation": -782, "impact_of_solid_wall_insulation": -2150, "space_heating_existing_dwelling": 9649 }, "energy_consumption_current": 255, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.13r0002", "energy_consumption_potential": 95, "environmental_impact_current": 62, "fixed_lighting_outlets_count": 8, "current_energy_efficiency_band": "D", "environmental_impact_potential": 85, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", 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"main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16839 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-3e38d80bf218", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-05-30", "inspection_date": "2025-05-30", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 74, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2025-05-30", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, 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], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 75, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1779, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.2, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 178, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1572, "currency": "GBP" }, "hot_water_cost_current": { "value": 211, "currency": "GBP" }, "mechanical_ventilation": 0, 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"description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 60% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2023-09-08 15:23:49", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-4c2ef8e04644", "address_line_2": "", 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{ "value": 41.7, "quantity": "square metres" }, "party_wall_length": { "value": 20.06, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 10.47, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.79, "quantity": "metres" }, "total_floor_area": { "value": 40.79, "quantity": "square metres" }, "party_wall_length": { "value": 20.06, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11.46, "quantity": "metres" } } ], "wall_insulation_type": 3, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "50mm", "floor_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.39, "quantity": "square metres" }, "party_wall_length": { "value": 2.71, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.51, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "H", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 60, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1157, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 200, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1082, "currency": "GBP" }, "hot_water_cost_current": { "value": 268, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 83, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 70 }, { "sequence": 2, "typical_saving": { "value": 49, "currency": "GBP" }, "indicative_cost": "\u00a310", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 71 }, { "sequence": 3, "typical_saving": { "value": 87, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", 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}, { "description": { "value": "Cavity wall, as built, insulated (assumed)", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 80% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2023-05-31 16:31:01", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10326 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-42ee0514f897", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2023-05-31", "inspection_date": "2023-05-31", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 73, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2023-05-31", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, 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"Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Top-floor flat", "language": "1" }, "language_code": 1, "property_type": 2, "address_line_1": "addr-2c100ce83096", "assessment_type": "RdSAP", "completion_date": "2022-10-28", "inspection_date": "2022-10-24", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "flat_location": 1, "heat_loss_corridor": 0 }, "total_floor_area": 48, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "pvc_window_frames": "true", "registration_date": "2022-10-28", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, 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"multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 371, "currency": "GBP" }, "hot_water_cost_current": { "value": 91, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 22, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 82, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3800 - 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"roof_insulation_thickness": 0, "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 25, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 915, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.3, "energy_rating_average": 60, "energy_rating_current": 53, "lighting_cost_current": { "value": 115, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Appliance thermostats", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 620, "currency": "GBP" }, "hot_water_cost_current": { "value": 96, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 56, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 104, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 50 }, { "sequence": 2, "typical_saving": { "value": 26, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 58, "environmental_impact_rating": 51 }, { "sequence": 3, "typical_saving": { "value": 10, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 59, "environmental_impact_rating": 52 }, { "sequence": 4, "typical_saving": { "value": 43, "currency": "GBP" }, "indicative_cost": "\u00a330", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 60, 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"solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1277, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.8, "energy_rating_average": 60, "energy_rating_current": 51, "lighting_cost_current": { "value": 85, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, no room thermostat", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 704, "currency": "GBP" }, "hot_water_cost_current": { "value": 99, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 272, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 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"quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.28, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 4.84, "quantity": "square metres" }, "party_wall_length": 2.75, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.51, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 74, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1367, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 7.3, "energy_rating_average": 60, "energy_rating_current": 49, "lighting_cost_current": { "value": 85, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, no room thermostat", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 720, "currency": "GBP" }, "hot_water_cost_current": { "value": 93, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 295, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 58, "environmental_impact_rating": 50 }, { "sequence": 2, "typical_saving": { "value": 183, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 57 }, { "sequence": 3, "typical_saving": { "value": 31, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 58 }, { "sequence": 4, "typical_saving": { "value": 15, "currency": "GBP" }, "indicative_cost": "\u00a325", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 59 }, { "sequence": 5, "typical_saving": { "value": 103, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 12 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 63 }, { "sequence": 6, "typical_saving": { "value": 82, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 67 }, { "sequence": 7, "typical_saving": { "value": 267, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 2.8, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 67, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 50, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1671, "impact_of_loft_insulation": -2056, "impact_of_cavity_insulation": -414, "impact_of_solid_wall_insulation": -3137, "space_heating_existing_dwelling": 23571 }, "energy_consumption_current": 378, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "v92.0.1.1", "energy_consumption_potential": 143, "environmental_impact_current": 40, "fixed_lighting_outlets_count": 19, "current_energy_efficiency_band": "E", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 67, "low_energy_fixed_lighting_outlets_count": 14 }, "cert-faeafa3f89d4": { "uprn": 100070379691, "roofs": [ { "description": { "value": "Pitched, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Roof room(s), no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 88% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2016-11-17 22:32:27.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "mcs_installed_heat_pump": "false", "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10326 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-8929b1872743", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2016-11-17", "inspection_date": "2016-11-17", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 84, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2016-11-17", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": { "value": 17.2, "quantity": "square metres" }, "insulation": "AB", "roof_room_connected": "N", "construction_age_band": "A" }, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.81, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 27.98, "quantity": "square metres" }, "party_wall_length": { "value": 16.41, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.32, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.78, "quantity": "metres" }, "total_floor_area": { "value": 27.71, "quantity": "square metres" }, "party_wall_length": { "value": 16.41, "quantity": "metres" }, "heat_loss_perimeter": { "value": 4.95, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.81, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.43, "quantity": "square metres" }, "party_wall_length": { "value": 3, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.86, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.71, "quantity": "metres" }, "total_floor_area": { "value": 5.42, "quantity": "square metres" }, "party_wall_length": { "value": 3, "quantity": "metres" }, "heat_loss_perimeter": { "value": 4.86, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 88, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 898, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.8, "energy_rating_average": 60, "energy_rating_current": 58, "lighting_cost_current": { "value": 62, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 551, "currency": "GBP" }, "hot_water_cost_current": { "value": 108, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 213, "currency": "GBP" }, "indicative_cost": "2,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 133, "currency": "GBP" }, "indicative_cost": "14,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 3, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 70 }, { "sequence": 4, "typical_saving": { "value": 266, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 82, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 82, "lighting_cost_potential": { "value": 62, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 73, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2162, "impact_of_loft_insulation": -1330, "impact_of_solid_wall_insulation": -2597, "space_heating_existing_dwelling": 16380 }, "energy_consumption_current": 323, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "1.0.x", "energy_consumption_potential": 130, "environmental_impact_current": 50, "fixed_lighting_outlets_count": 8, "current_energy_efficiency_band": "D", "environmental_impact_potential": 79, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 57, "low_energy_fixed_lighting_outlets_count": 7 }, "cert-ef001748933a": { "uprn": 100070379678, "roofs": [ { "description": { "value": "Pitched, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 71% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2016-08-26 02:03:00.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 2, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 2 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "mcs_installed_heat_pump": "false", "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16137 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-6df421322e47", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2016-08-26", "inspection_date": "2016-08-25", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 100, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 4, "pvc_window_frames": "true", "registration_date": "2016-08-26", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 47.55, "quantity": "square metres" }, "party_wall_length": { "value": 21.5, "quantity": "metres" }, "floor_construction": 3, "heat_loss_perimeter": { "value": 13.2, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.86, "quantity": "metres" }, "total_floor_area": { "value": 46.35, "quantity": "square metres" }, "party_wall_length": { "value": 21.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 13.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.16, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6.3, "quantity": "square metres" }, "party_wall_length": 3.5, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 71, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1086, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.8, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 81, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 804, "currency": "GBP" }, "hot_water_cost_current": { "value": 105, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 201, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 55 }, { "sequence": 2, "typical_saving": { "value": 15, "currency": "GBP" }, "indicative_cost": "\u00a310", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 56 }, { "sequence": 3, "typical_saving": { "value": 48, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { 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"environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 47% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2016-05-09 22:17:53.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": 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"value": 21, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 4.48, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.7, "quantity": "metres" }, "total_floor_area": { "value": 42.8, "quantity": "square metres" }, "party_wall_length": { "value": 21, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.2, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 8, "quantity": "square metres" }, "party_wall_length": 2.2, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 47, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 775, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.3, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 97, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 579, "currency": "GBP" }, "hot_water_cost_current": { "value": 121, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 120, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", 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"wall_insulation_thickness": "NI" } ], "low_energy_lighting": 67, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1118, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.4, "energy_rating_average": 60, "energy_rating_current": 47, "lighting_cost_current": { "value": 72, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 675, "currency": "GBP" }, "hot_water_cost_current": { "value": 108, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 220, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", 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"environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 75% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", 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"roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.9, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.5, "quantity": "square metres" }, "party_wall_length": { "value": 16.8, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.55, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.9, "quantity": "metres" }, "total_floor_area": { "value": 32.8, "quantity": "square metres" }, "party_wall_length": { "value": 16.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.73, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 75, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 906, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.8, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 67, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 733, "currency": "GBP" }, "hot_water_cost_current": { "value": 114, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 174, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - 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"energy_performance_rating": 75, "environmental_impact_rating": 69 } ], "co2_emissions_potential": 2.8, "energy_rating_potential": 75, "lighting_cost_potential": { "value": 54, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2120, "impact_of_loft_insulation": -3499, "impact_of_solid_wall_insulation": -3695, "space_heating_existing_dwelling": 15274 }, "energy_consumption_current": 336, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.0.0.0", "energy_consumption_potential": 193, "environmental_impact_current": 49, "fixed_lighting_outlets_count": 8, "windows_transmission_details": { "u_value": 3.1, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 69, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", 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"description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "B11 2QL", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2016-04-01 11:24:56.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 6, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, 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}, "floor_insulation": 1, "total_floor_area": { "value": 36.98, "quantity": "square metres" }, "party_wall_length": { "value": 11.5, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 16.94, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.65, "quantity": "metres" }, "total_floor_area": { "value": 41.3, "quantity": "square metres" }, "party_wall_length": { "value": 19.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11.9, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": 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"GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 709, "currency": "GBP" }, "hot_water_cost_current": { "value": 114, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 80, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 194, "currency": "GBP" }, "indicative_cost": "$1,500 - $2,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 59, "environmental_impact_rating": 52 }, { "sequence": 2, "typical_saving": { "value": 156, "currency": "GBP" }, "indicative_cost": "$4,000 - $14,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, 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"construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "N", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 825, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.6, "energy_rating_average": 60, "energy_rating_current": 59, "lighting_cost_current": { "value": 110, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 555, "currency": "GBP" }, "hot_water_cost_current": { "value": 114, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 90, 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"energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.73, "floor_insulation": 1, "total_floor_area": 31.99, "floor_construction": 2, "heat_loss_perimeter": 9 }, { "floor": 1, "room_height": 2.73, "total_floor_area": 31.99, "heat_loss_perimeter": 9 } ], "wall_insulation_type": 4, "construction_age_band": "B", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "NI" } ], "low_energy_lighting": 75, "solar_water_heating": "N", "bedf_revision_number": 328, "habitable_room_count": 4, "heating_cost_current": { "value": 644, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": { "value": 3.7, "quantity": "tonnes per year" }, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 47, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 455, "currency": "GBP" }, "hot_water_cost_current": { "value": 94, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 108, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 62 }, { "sequence": 3, "typical_saving": { "value": 75, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 68 }, { "sequence": 4, "typical_saving": { "value": 18, "currency": "GBP" }, "indicative_cost": "\u00a3900", "improvement_type": "T2", "improvement_details": { "improvement_number": 50 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 69 }, { "sequence": 5, "typical_saving": { "value": 222, "currency": "GBP" }, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 80 } ], "co2_emissions_potential": { "value": 1.5, "quantity": "tonnes per year" }, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 47, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 105, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 70, "environmental_impact_rating": 68 } ], "hot_water_cost_potential": { "value": 59, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1922, "impact_of_loft_insulation": -2673, "impact_of_solid_wall_insulation": -2532, "space_heating_existing_dwelling": 10712 }, "seller_commission_report": "Y", "energy_consumption_current": 303, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": 4.1, "energy_consumption_potential": 120, "environmental_impact_current": 53, "fixed_lighting_outlets_count": 8, "current_energy_efficiency_band": "D", "environmental_impact_potential": 80, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": { "value": 58, "quantity": "kg/m2 per year" }, "low_energy_fixed_lighting_outlets_count": 6 } }, "B311RT": { "cert-0834e3bfb70d": { "uprn": 100070322992, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "B31 1RT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 1, "built_form": 4, "created_at": "2026-05-25 12:25:23", "door_count": 2, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, 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"main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-a05ba087d639", "assessment_type": "RdSAP", "completion_date": "2026-05-25", "inspection_date": "2026-05-23", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 72, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-05-25", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 36, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 9.6, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 36, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 9.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 889, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.6, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 49, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 661, "currency": "GBP" }, "hot_water_cost_current": { "value": 166, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 75, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 170, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 76 }, { "sequence": 2, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 }, { "sequence": 3, "typical_saving": { "value": 199, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 49, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 166, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2000.52, "space_heating_existing_dwelling": 8912.76 }, "draughtproofed_door_count": 0, "energy_consumption_current": 201, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 137, "environmental_impact_current": 70, "current_energy_efficiency_band": "C", "environmental_impact_potential": 79, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 37, "low_energy_fixed_lighting_bulbs_count": 7, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-043af18dc7a6": { "uprn": 100070322976, "roofs": [ { "description": "Pitched, 50 mm loft insulation", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Solid brick, with internal insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "B31 1RT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 0, "built_form": 2, "created_at": "2025-10-24 20:20:04", "door_count": 1, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": 1, "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17507 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": { "value": 1.5, "quantity": "m" }, "window_height": { "value": 1.4, "quantity": "m" }, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": { "value": 1.5, "quantity": "m" }, "window_height": { "value": 1.4, "quantity": "m" }, 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"window_height": { "value": 1.7, "quantity": "m" }, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-37c6debd5e18", "assessment_type": "RdSAP", "completion_date": "2025-10-24", "inspection_date": "2025-10-21", "extensions_count": 0, "measurement_type": 1, "open_flues_count": 0, "total_floor_area": 80, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "other_flues_count": 0, "registration_date": 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"pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 3 } ], "construction_year": 2022, "sap_thermal_bridges": { "thermal_bridge_code": 1 }, "building_part_number": 1, "sap_floor_dimensions": [ { "storey": 0, "u_value": 0.18, "floor_type": 2, "kappa_value": 110, "storey_height": 3.56, "heat_loss_area": 58.54, "total_floor_area": 58.54 } ] } ], "user_interface_name": "Design SAP 10", "windows_overshading": 2, "heating_cost_current": { "value": 399, "currency": "GBP" }, "co2_emissions_current": 0.6, "energy_rating_average": 60, "energy_rating_current": 60, "lighting_cost_current": { "value": 27, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Time and temperature zone control", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 413, "currency": "GBP" }, "hot_water_cost_current": { "value": 236, "currency": "GBP" }, 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"environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 365, "currency": "GBP" }, "hot_water_cost_current": { "value": 199, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 60, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 97, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 80 }, { "sequence": 2, "typical_saving": { "value": 46, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 82 }, { "sequence": 3, "typical_saving": { "value": 39, "currency": "GBP" }, "indicative_cost": "\u00a34,500 - \u00a36,000", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 1.2, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 48, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 199, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2393.73, "space_heating_existing_dwelling": 4825.53 }, "draughtproofed_door_count": 1, "energy_consumption_current": 155, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 31, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 110, "environmental_impact_current": 77, "current_energy_efficiency_band": "C", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 28, "low_energy_fixed_lighting_bulbs_count": 7, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-4f47ef03a5e2": { "uprn": 22033943, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Solid brick, as built, partial insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Single glazed", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "BN3 1HG", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-05-22 09:13:05", "door_count": 0, "region_code": 14, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17501 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 0.98, "window_height": 1.99, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "Y", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 5, "window_width": 0.98, "window_height": 1.99, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "Y", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.27, "window_height": 1.98, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "Y", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-9f72b33fbee5", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-05-22", "inspection_date": "2026-05-19", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 2, "heat_loss_corridor": 2, "unheated_corridor_length": 10.5 }, "total_floor_area": 41, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2026-05-22", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.18, "quantity": "metres" }, "total_floor_area": { "value": 40.77, "quantity": "square metres" }, "party_wall_length": { "value": 9.35, "quantity": "metres" }, "heat_loss_perimeter": { "value": 19.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "sap_alternative_wall_1": { "wall_area": 33.39, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "N", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 531, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 35, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 285, "currency": "GBP" }, "hot_water_cost_current": { "value": 136, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 190, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 84 }, { "sequence": 2, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 85 }, { "sequence": 3, "typical_saving": { "value": 31, "currency": "GBP" }, "indicative_cost": "\u00a34,500 - \u00a36,000", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 87 } ], "co2_emissions_potential": 0.8, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 35, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 137, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1641.3, "space_heating_existing_dwelling": 4611.33 }, "draughtproofed_door_count": 0, "energy_consumption_current": 206, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 0, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 113, "environmental_impact_current": 75, "cfl_fixed_lighting_bulbs_count": 1, "current_energy_efficiency_band": "C", "environmental_impact_potential": 87, "led_fixed_lighting_bulbs_count": 6, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 37, "incandescent_fixed_lighting_bulbs_count": 1 }, "cert-315006d41512": { "uprn": 22137593, "roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Single glazed", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "BN3 1HG", "hot_water": { "description": "From main system", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-19 11:01:02", "door_count": 0, "region_code": 14, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 8575 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 0, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.2, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.2, "window_height": 1.2, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-24fe9f95ec4d", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-12-19", "inspection_date": "2025-12-19", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 5, "flat_location": 4, "heat_loss_corridor": 2, "unheated_corridor_length": 3.28 }, "total_floor_area": 58, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-12-19", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 6, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "total_floor_area": { "value": 58.34, "quantity": "square metres" }, "party_wall_length": { "value": 22.31, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.57, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "sap_alternative_wall_1": { "wall_area": 7.9048, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 190, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 506, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.7, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 44, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 260, "currency": "GBP" }, "hot_water_cost_current": { "value": 481, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 76, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 66 }, { "sequence": 2, "typical_saving": { "value": 112, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 188, "currency": "GBP" }, "indicative_cost": "\u00a320 - \u00a340", "improvement_type": "C", "improvement_details": { "improvement_number": 1 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 79 }, { "sequence": 4, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 80 }, { "sequence": 5, "typical_saving": { "value": 73, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,500", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 83 }, { "sequence": 6, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a34,500 - \u00a36,000", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 86 } ], "co2_emissions_potential": 1.0, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 45, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 196, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 5295.77, "space_heating_existing_dwelling": 4294.66 }, "draughtproofed_door_count": 0, "energy_consumption_current": 256, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 0, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 99, "environmental_impact_current": 63, "current_energy_efficiency_band": "D", "environmental_impact_potential": 86, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 47, "low_energy_fixed_lighting_bulbs_count": 6, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-1ca9044d3fce": { "uprn": 22032840, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Some double glazing", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "BN3 1HG", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-09-24 07:47:30", "door_count": 1, "region_code": 14, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15502 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 0.96, "window_height": 1.76, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 0.96, "window_height": 1.76, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 5, "window_width": 0.96, "window_height": 1.1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.32, "window_height": 1.94, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 5, "window_width": 0.42, "window_height": 0.86, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 0.86, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-59d06867dff3", "assessment_type": "RdSAP", "completion_date": "2025-09-24", "inspection_date": "2025-09-16", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 5, "flat_location": 0, "heat_loss_corridor": 0 }, "total_floor_area": 70, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2025-09-24", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", 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16.65, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 400, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 3.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.05, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 3.66, "quantity": "metres" }, "total_floor_area": { "value": 3.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.05, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 3.92, "quantity": "metres" }, "total_floor_area": { "value": 3.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.05, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 9, "heating_cost_current": { "value": 796, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.8, "energy_rating_average": 60, "energy_rating_current": 75, "lighting_cost_current": { "value": 109, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room 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"lighting_cost_potential": { "value": 47, "currency": "GBP" }, "hot_water_cost_potential": { "value": 82, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2005, "impact_of_solid_wall_insulation": -2065, "space_heating_existing_dwelling": 6925 }, "seller_commission_report": "Y", "energy_consumption_current": 168, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 0, "calculation_software_version": 8.3, "energy_consumption_potential": 116, "environmental_impact_current": 72, "fixed_lighting_outlets_count": 18, "current_energy_efficiency_band": "C", "environmental_impact_potential": 81, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 32, "low_energy_fixed_lighting_outlets_count": 16 } }, "CA118BJ": { "cert-91f132d1c9c8": { "uprn": 100110692634, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Sandstone, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Full secondary glazing", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-06-22 15:25:26", "door_count": 0, "region_code": 9, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17505 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 0.6, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-a4d46822dc0e", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-06-22", "inspection_date": "2026-06-22", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 2, "flat_location": 1, "heat_loss_corridor": 1 }, "total_floor_area": 151, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 4, "registration_date": "2026-06-22", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 3, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 600, "floor_heat_loss": 6, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.52, "quantity": "metres" }, "total_floor_area": { "value": 150.9, "quantity": "square metres" }, "party_wall_length": { "value": 10.35, "quantity": "metres" }, "heat_loss_perimeter": { "value": 47.39, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 2246, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.7, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 158, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "blocked_chimneys_count": 2, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1428, "currency": "GBP" }, "hot_water_cost_current": { "value": 216, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 745, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 73 }, { "sequence": 2, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a3300 - \u00a3350", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 85, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 74 } ], "co2_emissions_potential": 4.3, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 82, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 216, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2597.55, "space_heating_existing_dwelling": 23921.56 }, "draughtproofed_door_count": 0, "energy_consumption_current": 243, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 157, "environmental_impact_current": 60, "cfl_fixed_lighting_bulbs_count": 8, "current_energy_efficiency_band": "D", "environmental_impact_potential": 74, "led_fixed_lighting_bulbs_count": 2, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 44, "incandescent_fixed_lighting_bulbs_count": 10 }, "cert-511de9938b3b": { "uprn": 100110692633, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Sandstone, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Full secondary glazing", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-02-20 11:24:48", "door_count": 1, "region_code": 9, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 3, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18623 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "orientation": 1, "window_type": 1, "glazing_type": 11, "window_width": 1.24, "window_height": 2.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 11, "window_width": 2.82, "window_height": 2.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 11, "window_width": 1.16, "window_height": 2.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 11, "window_width": 1.29, "window_height": 2.51, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 11, "window_width": 0.68, "window_height": 1.76, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 11, "window_width": 3.04, "window_height": 2.39, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 11, "window_width": 2.95, "window_height": 3.38, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 11, "window_width": 3.19, "window_height": 2.39, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 11, "window_width": 3.19, "window_height": 2.45, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 11, "window_width": 1.29, "window_height": 3.13, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 11, "window_width": 1.29, "window_height": 3.13, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 11, "window_width": 1.09, "window_height": 2.39, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-f34f65931160", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-02-20", "inspection_date": "2026-02-18", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 2, "flat_location": 1, "heat_loss_corridor": 0 }, "total_floor_area": 200, "transaction_type": 1, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 6, "registration_date": "2026-02-20", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 600, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 199.63, "quantity": "square metres" }, "party_wall_length": { "value": 16.73, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 59.25, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 2337, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 7.9, "energy_rating_average": 60, "energy_rating_current": 67, "lighting_cost_current": { "value": 248, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1628, "currency": "GBP" }, "hot_water_cost_current": { "value": 245, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 596, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 71 }, { "sequence": 2, "typical_saving": { "value": 131, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 140, "currency": "GBP" }, "indicative_cost": "\u00a31,080 - \u00a31,260", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 73 } ], "co2_emissions_potential": 5.6, "energy_rating_potential": 77, "lighting_cost_potential": { "value": 89, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 245, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3186.64, "space_heating_existing_dwelling": 29626.44 }, "draughtproofed_door_count": 1, "energy_consumption_current": 218, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 153, "environmental_impact_current": 62, "current_energy_efficiency_band": "D", "environmental_impact_potential": 73, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 40, "low_energy_fixed_lighting_bulbs_count": 4, "incandescent_fixed_lighting_bulbs_count": 36 }, "cert-fc6973821005": { "uprn": 100110692631, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Sandstone, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Full secondary glazing", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-02-19 08:19:45", "door_count": 2, "region_code": 9, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, 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"orientation": 1, "window_type": 1, "glazing_type": 11, "window_width": 1.03, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 11, "window_width": 1.15, "window_height": 1.51, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 11, "window_width": 2.32, "window_height": 1.93, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 11, "window_width": 2.32, "window_height": 1.93, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], 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"mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 1, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 600, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.49, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 120.55, "quantity": "square metres" }, "party_wall_length": { "value": 4.41, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 50.54, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "sap_alternative_wall_1": { "wall_area": 10.3653, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 600, "wall_construction": 2, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1756, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.8, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 74, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1052, "currency": "GBP" }, "hot_water_cost_current": { "value": 196, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 500, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 70 }, { "sequence": 2, "typical_saving": { "value": 140, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 3.6, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 74, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 196, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2628.93, "space_heating_existing_dwelling": 20331.47 }, "draughtproofed_door_count": 2, "energy_consumption_current": 262, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 163, "environmental_impact_current": 58, "current_energy_efficiency_band": "D", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 48, "low_energy_fixed_lighting_bulbs_count": 18, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-8bb9aed9e3c8": { "uprn": 100110692668, "roofs": [ { "description": "Pitched, no insulation", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Roof room(s), ceiling insulated", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Sandstone or limestone, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "To unheated space, insulated", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Mostly double glazing", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "stone_walls": "true", "access_issues": "true" }, "lighting": { "description": "Low energy lighting in 86% of fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2024-07-13 14:01:24", "door_count": 4, "glazed_area": 1, "glazing_gap": "16+", "region_code": 9, "report_type": 2, "sap_heating": { "cylinder_size": 4, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 3, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2110, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 102, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "secondary_heating_type": 612, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-8bb4bc18b548", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2024-07-13", "inspection_date": "2024-06-14", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 292, "transaction_type": 1, "conservatory_type": 4, "heated_room_count": 11, "pvc_window_frames": "true", "registration_date": "2024-07-13", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "floor_area": 11.22, "room_height": 1, "double_glazed": "Y", "glazed_perimeter": 10.1 }, { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 600, "floor_heat_loss": 2, "sap_room_in_roof": { "floor_area": 70.15, "insulation": 2, "roof_room_connected": "N", "construction_age_band": "A", "roof_insulation_thickness": "250mm" }, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_alternative_wall": { "wall_area": 52.95, "wall_dry_lined": "N", "wall_thickness": 600, "wall_construction": 2, "wall_insulation_type": 4, "wall_thickness_measured": "Y", 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"wall_thickness_measured": "Y", "roof_insulation_location": 5, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 380, "floor_heat_loss": 1, "roof_construction": 1, "wall_construction": 2, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 3.3, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 3.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 86, "solar_water_heating": "N", "habitable_room_count": 11, "heating_cost_current": { "value": 5639, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 17, "energy_rating_average": 60, "energy_rating_current": 55, "lighting_cost_current": { "value": 232, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 1, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 3559, "currency": "GBP" }, "hot_water_cost_current": { "value": 280, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 296, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 45 }, { "sequence": 2, "typical_saving": { "value": 654, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 51 }, { "sequence": 3, "typical_saving": { "value": 1130, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 62 }, { "sequence": 4, "typical_saving": { "value": 487, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 65 } ], "co2_emissions_potential": 10, "energy_rating_potential": 74, 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"environmental_efficiency_rating": 4 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Sandstone or limestone, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main 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{ "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.91, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.28, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.67, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 29, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1415, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 8.7, "energy_rating_average": 60, "energy_rating_current": 58, "lighting_cost_current": { "value": 171, "currency": "GBP" }, "main_heating_controls": [ { "description": "Room thermostat only", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "multiple_glazing_type": 4, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 847, "currency": "GBP" }, "hot_water_cost_current": { "value": 119, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 112, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 61, "environmental_impact_rating": 52 }, { "sequence": 2, "typical_saving": { "value": 364, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 64 }, { "sequence": 3, "typical_saving": { "value": 61, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 66 }, { "sequence": 4, "typical_saving": { "value": 63, "currency": "GBP" }, "indicative_cost": "\u00a360", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 67 }, { "sequence": 5, "typical_saving": { "value": 40, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 15 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 69 }, { "sequence": 6, "typical_saving": { "value": 36, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 70 }, { "sequence": 7, "typical_saving": { "value": 325, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 4.1, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 100, "currency": "GBP" }, "schema_version_original": "20.0.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 58, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 62, "environmental_impact_rating": 53 } ], "hot_water_cost_potential": { "value": 81, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2775, "impact_of_loft_insulation": -896, "impact_of_cavity_insulation": -2641, "impact_of_solid_wall_insulation": -8643, "space_heating_existing_dwelling": 29963 }, "energy_consumption_current": 325, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.07r0006", "energy_consumption_potential": 151, "environmental_impact_current": 49, "fixed_lighting_outlets_count": 17, 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"environmental_efficiency_rating": 1 }, "addendum": { "stone_walls": "true", "narrow_cavities": "true" }, "lighting": { "description": { "value": "Low energy lighting in all fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "CA11 8BJ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2021-06-09 18:50:50", "door_count": 2, "glazed_area": 1, "region_code": 9, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 6, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", 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"value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 33.08, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.3, "quantity": "metres" }, "total_floor_area": { "value": 54.54, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 30.36, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": 0, "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1822, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 8.1, "energy_rating_average": 60, "energy_rating_current": 39, "lighting_cost_current": { "value": 78, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer and room thermostat", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 1, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 985, "currency": "GBP" }, "hot_water_cost_current": { "value": 153, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 10, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 564, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 55, "environmental_impact_rating": 55 }, { "sequence": 2, "typical_saving": { "value": 94, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 58 }, { "sequence": 3, "typical_saving": { "value": 15, "currency": "GBP" }, "indicative_cost": "\u00a315 - \u00a330", "improvement_type": "C", "improvement_details": { "improvement_number": 3 }, "improvement_category": 5, "energy_performance_rating": 58, "environmental_impact_rating": 59 }, { "sequence": 4, "typical_saving": { "value": 43, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 59, "environmental_impact_rating": 60 }, { "sequence": 5, "typical_saving": { "value": 52, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 61, "environmental_impact_rating": 62 }, { "sequence": 6, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": 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"environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Sandstone or limestone, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Low energy lighting in 50% of fixed outlets", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2018-05-10 06:13:23.000000", "door_count": 2, "glazed_area": 1, "region_code": 9, "report_type": 2, "sap_heating": { 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"Detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-3862ada0bbed", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2018-05-10", "inspection_date": "2018-05-09", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 148, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2018-05-10", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 500, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 58.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 25.51, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 58.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 30.96, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 500, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 2, "building_part_number": 2, 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"currency": "GBP" }, "indicative_cost": 30, "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 66 }, { "sequence": 4, "typical_saving": { "value": 274, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 72 } ], "co2_emissions_potential": 4.7, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 83, "currency": "GBP" }, "schema_version_original": "LIG-18.0", "hot_water_cost_potential": { "value": 152, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3367, "impact_of_loft_insulation": -3143, "impact_of_solid_wall_insulation": -12403, "space_heating_existing_dwelling": 31700 }, "energy_consumption_current": 354, "has_fixed_air_conditioning": "false", 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"environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": { "value": "Low energy lighting in 67% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CA11 8BJ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": 1, "created_at": "2018-04-13 15:07:00", "door_count": 2, "glazed_area": 1, "region_code": 9, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 2, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 101, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.93, "schema_type": "RdSAP-Schema-18.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-f20c68b1e648", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2018-04-13", "inspection_date": "2018-04-12", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 189, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 7, "pvc_window_frames": "false", "registration_date": "2018-04-13", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 450, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.82, "quantity": "metres" }, 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"party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" } ], "low_energy_lighting": 67, "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 2769, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 16, "energy_rating_average": 60, "energy_rating_current": 40, "lighting_cost_current": { "value": 127, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1129, "currency": "GBP" }, "hot_water_cost_current": { "value": 184, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 1161, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 53 }, { "sequence": 2, "typical_saving": { "value": 183, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 57 }, { "sequence": 3, "typical_saving": { "value": 26, "currency": "GBP" }, "indicative_cost": "\u00a320", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 57 }, { "sequence": 4, "typical_saving": { "value": 108, "currency": "GBP" }, "indicative_cost": "\u00a3350 - 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"typical_saving": { "value": 363, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 75, "environmental_impact_rating": 67 } ], "hot_water_cost_potential": { "value": 121, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3012, "impact_of_loft_insulation": -539, "impact_of_solid_wall_insulation": -20062, "space_heating_existing_dwelling": 45598 }, "energy_consumption_current": 473, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.1.0.0", "energy_consumption_potential": 168, "environmental_impact_current": 32, "fixed_lighting_outlets_count": 12, "windows_transmission_details": { "u_value": 3.1, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "E", "environmental_impact_potential": 73, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 84, "low_energy_fixed_lighting_outlets_count": 8 }, "cert-5ad9ec95b8f7": { "uprn": 100110692668, "roofs": [ { "description": { "value": "Pitched, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Roof room(s), no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Sandstone or limestone, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Mostly double glazing", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 14% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "CA11 8BJ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2017-02-10 18:21:04.000000", "door_count": 1, "glazed_area": 1, "glazing_gap": "16+", "region_code": 9, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 2, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "mcs_installed_heat_pump": "false", "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16766 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-8bb4bc18b548", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2017-02-10", "inspection_date": "2017-02-10", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 284, "transaction_type": 1, "conservatory_type": 4, "heated_room_count": 11, "pvc_window_frames": "true", "registration_date": "2017-02-10", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "floor_area": { "value": 10.2, "quantity": "square metres" }, "room_height": 1.5, "double_glazed": "Y", "glazed_perimeter": { "value": 9.7, "quantity": "metres" } }, { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 600, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": { "value": 73.6, "quantity": "square metres" }, "insulation": "AB", "roof_room_connected": "N", "construction_age_band": "A" }, "roof_construction": 5, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.16, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 87.6, "quantity": "square metres" }, "party_wall_length": { "value": 9.1, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 25.9, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 3, "quantity": "metres" }, "total_floor_area": { "value": 86.5, "quantity": "square metres" }, "party_wall_length": { "value": 9.1, "quantity": "metres" }, "heat_loss_perimeter": { "value": 24.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "Y", "wall_thickness": 600, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 2, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.2, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 13.2, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.3, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 13.2, "quantity": "square metres" }, "party_wall_length": 0, "heat_loss_perimeter": { "value": 11.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 14, "solar_water_heating": "N", "habitable_room_count": 11, "heating_cost_current": { "value": 3379, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 18, "energy_rating_average": 60, "energy_rating_current": 52, "lighting_cost_current": { "value": 202, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 2080, "currency": "GBP" }, "hot_water_cost_current": { "value": 94, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 88, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 714, "currency": "GBP" }, "indicative_cost": "2,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 61, "environmental_impact_rating": 50 }, { "sequence": 2, "typical_saving": { "value": 599, "currency": "GBP" }, "indicative_cost": "14,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 61 }, { "sequence": 3, "typical_saving": { "value": 79, "currency": "GBP" }, "indicative_cost": 90, "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 62 }, { "sequence": 4, "typical_saving": { "value": 264, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 65 } ], "co2_emissions_potential": 10, "energy_rating_potential": 74, "lighting_cost_potential": { "value": 109, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 94, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1995, "impact_of_loft_insulation": -2459, "impact_of_solid_wall_insulation": -10708, "space_heating_existing_dwelling": 62050 }, "energy_consumption_current": 359, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 90, "calculation_software_version": "1.0.x", "energy_consumption_potential": 201, "environmental_impact_current": 41, "fixed_lighting_outlets_count": 21, "current_energy_efficiency_band": "E", "environmental_impact_potential": 65, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 63, "low_energy_fixed_lighting_outlets_count": 3 }, "cert-6227259c634b": { "uprn": 100110692648, "roofs": [ { "description": { "value": "Pitched, 100 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": { "value": "Roof room(s), no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Sandstone or limestone, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "To unheated space, insulated", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": { "value": "Low energy lighting in 67% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CA11 8BJ", "hot_water": { "description": { "value": "From main system, no cylinder thermostat", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "post_town": "", "built_form": 2, "created_at": "2016-02-21 17:33:25.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 9, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 1, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2102, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 1334 } ], "immersion_heating_type": "NA", "secondary_heating_type": 612, "cylinder_insulation_type": 2, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-78ef77d2bab8", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2016-02-21", "inspection_date": "2016-02-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 278, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 7, "pvc_window_frames": "true", "registration_date": "2016-02-21", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 600, "floor_heat_loss": 2, "sap_room_in_roof": { "floor_area": { "value": 60.04, "quantity": "square metres" }, "insulation": "AB", "roof_room_connected": "N", "construction_age_band": "A" }, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.19, "quantity": "metres" }, "floor_insulation": 2, "total_floor_area": { "value": 109.94, "quantity": "square metres" }, "party_wall_length": { "value": 9.77, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 42.76, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 3.04, "quantity": "metres" }, "total_floor_area": { 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"quantity": "square metres" }, "party_wall_length": { "value": 8.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 22.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1262, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.2, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 72, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 696, "currency": "GBP" }, "hot_water_cost_current": { "value": 179, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 52, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 388, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 93, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 75 }, { "sequence": 4, "typical_saving": { "value": 33, "currency": "GBP" }, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 77 }, { "sequence": 5, "typical_saving": { "value": 241, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 72, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 179, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2406.9, "space_heating_existing_dwelling": 15065.23 }, "draughtproofed_door_count": 0, "energy_consumption_current": 193, 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"description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in 53% of fixed outlets", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CR0 8AJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2024-02-13 07:30:11", "door_count": 2, "glazed_area": 1, "glazing_gap": 6, "region_code": 17, "report_type": 2, "sap_heating": { "cylinder_size": 3, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 2041 } ], "immersion_heating_type": "NA", "secondary_heating_type": 607, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-7e5856e16ee4", "assessment_type": "RdSAP", "completion_date": "2024-02-13", "inspection_date": "2024-02-12", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 100, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2024-02-13", "sap_energy_source": { "mains_gas": "Y", "meter_type": 1, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_alternative_wall": { "wall_area": 6.3, "wall_dry_lined": "N", "wall_construction": 5, "wall_insulation_type": 4, "wall_thickness_measured": "N", "wall_insulation_thickness": "NI" }, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.53, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 49.44, "quantity": "square metres" }, "party_wall_length": { "value": 8.5, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 20.7, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.47, "quantity": "metres" }, "total_floor_area": { "value": 50.26, "quantity": "square metres" }, "party_wall_length": { "value": 8.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 20.7, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 53, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1192, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.2, "energy_rating_average": 60, "energy_rating_current": 62, "lighting_cost_current": { "value": 221, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 894, "currency": "GBP" }, "hot_water_cost_current": { "value": 317, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 76, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 57 }, { "sequence": 2, "typical_saving": { "value": 113, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 3, "typical_saving": { "value": 62, "currency": "GBP" }, "indicative_cost": "\u00a340", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 62 }, { "sequence": 4, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 64 }, { "sequence": 5, "typical_saving": { "value": 149, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 6, "typical_saving": { "value": 83, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 70 }, { "sequence": 7, "typical_saving": { "value": 623, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 82, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.8, "energy_rating_potential": 82, "lighting_cost_potential": { "value": 150, "currency": "GBP" }, "schema_version_original": "20.0.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 270, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 73, "environmental_impact_rating": 68 } ], "hot_water_cost_potential": { 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}, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in all fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "CR0 8AJ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2023-08-06 08:18:48", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 17, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 0, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17553 } ], "immersion_heating_type": 2, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 38 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-7c72604d5dfd", "assessment_type": "RdSAP", "completion_date": "2023-08-06", "inspection_date": "2023-08-01", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 136, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2023-08-06", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.59, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 76.6, "quantity": "square metres" }, "party_wall_length": { "value": 8.17, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 31.47, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.61, "quantity": "metres" }, "total_floor_area": { "value": 58.94, "quantity": "square metres" }, "party_wall_length": { "value": 8.03, "quantity": "metres" }, "heat_loss_perimeter": { "value": 22.73, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1958, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.0, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 182, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1084, "currency": "GBP" }, "hot_water_cost_current": { "value": 321, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 708, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 70 }, { "sequence": 2, "typical_saving": { "value": 170, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 74 }, { "sequence": 3, "typical_saving": { "value": 113, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 76 }, { "sequence": 4, "typical_saving": { "value": 678, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 85, "environmental_impact_rating": 82 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 85, "lighting_cost_potential": { "value": 182, "currency": "GBP" }, "schema_version_original": "LIG-19.0", "hot_water_cost_potential": { "value": 204, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2836, "impact_of_solid_wall_insulation": -6576, "space_heating_existing_dwelling": 16607 }, "energy_consumption_current": 210, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.1.1.0", "energy_consumption_potential": 76, "environmental_impact_current": 57, "fixed_lighting_outlets_count": 15, "windows_transmission_details": { "u_value": 2.6, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 82, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 37, "low_energy_fixed_lighting_outlets_count": 15 }, "cert-bd711159012c": { "uprn": 100020584265, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Low energy lighting in 20% of fixed outlets", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "CR0 8AJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2019-10-10 16:38:56", 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"environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-fda3466a9e27", "assessment_type": "RdSAP", "completion_date": "2015-04-30", "inspection_date": "2015-04-30", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 190, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2015-04-30", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 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"\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 58 }, { "sequence": 2, "typical_saving": { "value": 190, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 64 }, { "sequence": 3, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 65 }, { "sequence": 4, "typical_saving": { "value": 74, "currency": "GBP" }, "indicative_cost": "\u00a345", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, 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"currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 82, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 3.3, "energy_rating_potential": 82, "lighting_cost_potential": { "value": 88, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 35, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 71, "environmental_impact_rating": 65 } ], "hot_water_cost_potential": { "value": 94, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2796, "impact_of_loft_insulation": -1559, "impact_of_cavity_insulation": -3855, "space_heating_existing_dwelling": 21141 }, "energy_consumption_current": 205, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.0.0.0", "energy_consumption_potential": 96, "environmental_impact_current": 56, "fixed_lighting_outlets_count": 9, "current_energy_efficiency_band": "D", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 36, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-87dccfe6d421": { "uprn": 100020584260, "roofs": [ { "description": "Pitched, 50 mm loft insulation", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "windows": [ { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "lighting": { "description": "Low energy lighting in 15% of fixed outlets", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "CR0 8AJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2014-07-03 08:07:37", "door_count": 3, "glazed_area": 1, "region_code": 17, "report_type": 2, "sap_heating": { "wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 6, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "boiler_index_number": 10241, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "main_heating_data_source": 1 } ], "secondary_heating_type": 631, "has_fixed_air_conditioning": "false" }, "sap_version": 9.91, "schema_type": "SAP-Schema-16.3", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-23c236b0a081", "schema_version": "LIG-16.1", "assessment_type": "RdSAP", "completion_date": "2014-07-03", "inspection_date": "2014-07-02", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 106, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2014-07-03", "restricted_access": 0, "sap_energy_source": { "main_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "percent_roof_area": 0 }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, wood logs", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "lzc_energy_sources": [ 4 ], "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.61, "floor_insulation": 1, "total_floor_area": 52.5, "floor_construction": 2, "heat_loss_perimeter": 21.1 }, { "floor": 1, "room_height": 2.63, "total_floor_area": 53.2, "heat_loss_perimeter": 21.1 } ], "wall_insulation_type": 4, "construction_age_band": "C", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "50mm" } ], "low_energy_lighting": 15, "solar_water_heating": "N", "bedf_revision_number": 361, "habitable_room_count": 5, "heating_cost_current": { "value": 1048, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.3, "energy_rating_average": 60, "energy_rating_current": 55, "lighting_cost_current": { "value": 113, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 583, "currency": "GBP" }, "hot_water_cost_current": { "value": 109, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 56, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 354, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 75 }, { "sequence": 4, "typical_saving": { "value": 43, "currency": "GBP" }, "indicative_cost": "\u00a355", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 77 }, { "sequence": 5, "typical_saving": { "value": 258, "currency": "GBP" }, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 1.5, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 61, "currency": "GBP" }, "hot_water_cost_potential": { "value": 109, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2390, "impact_of_loft_insulation": -1012, "impact_of_solid_wall_insulation": -6444, "space_heating_existing_dwelling": 16552 }, "seller_commission_report": "Y", "energy_consumption_current": 264, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": 8.3, "energy_consumption_potential": 97, "environmental_impact_current": 59, "fixed_lighting_outlets_count": 13, "current_energy_efficiency_band": "D", "environmental_impact_potential": 85, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 41, "low_energy_fixed_lighting_outlets_count": 2 } }, "DH22BP": { "cert-c31a86e3d519": { "uprn": 100110363175, "roofs": [ { "description": "Pitched, 175 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "DH2 2BP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-02-16 06:16:13", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15706 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.01, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-b489854caecd", "assessment_type": "RdSAP", "completion_date": "2026-02-16", "inspection_date": "2025-11-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 78, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-02-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.49, "quantity": "metres" }, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "175mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 655, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.3, "energy_rating_average": 60, "energy_rating_current": 74, "lighting_cost_current": { "value": 51, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 600, "currency": "GBP" }, "hot_water_cost_current": { "value": 198, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 }, { "sequence": 2, "typical_saving": { "value": 206, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 51, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 198, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2551.48, "space_heating_existing_dwelling": 6821.92 }, "draughtproofed_door_count": 2, "energy_consumption_current": 162, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 136, "environmental_impact_current": 74, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 10, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 29, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-c0e097e4ba55": { "uprn": 100110363175, "roofs": [ { "description": "Pitched, 175 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "DH2 2BP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-02-12 13:22:56", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15706 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, 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"orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-b489854caecd", "assessment_type": "RdSAP", "completion_date": "2026-02-12", "inspection_date": "2025-11-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 78, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-02-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.49, "quantity": "metres" }, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "175mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 658, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.3, "energy_rating_average": 60, "energy_rating_current": 74, "lighting_cost_current": { "value": 51, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 603, "currency": "GBP" }, "hot_water_cost_current": { "value": 198, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 82, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 76 }, { "sequence": 2, "typical_saving": { "value": 206, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 51, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 198, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2551.48, "space_heating_existing_dwelling": 6866.86 }, "draughtproofed_door_count": 0, "energy_consumption_current": 163, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 137, "environmental_impact_current": 74, "current_energy_efficiency_band": "C", "environmental_impact_potential": 77, "led_fixed_lighting_bulbs_count": 10, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 30, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-7f62c3f0e8b1": { "uprn": 100110363152, "roofs": [ { "description": "Pitched, 270 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "DH2 2BP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-07-31 16:34:17", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15031 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.51, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.51, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.2, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.51, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.42, "window_height": 0.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.72, "window_height": 0.61, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 1.37, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-5e2c312f0d50", "assessment_type": "RdSAP", "completion_date": "2025-07-31", "inspection_date": "2025-07-31", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 99, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2025-07-31", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 36.86, "quantity": "square metres" }, "party_wall_length": { "value": 6.74, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 14.04, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.43, "quantity": "metres" }, "total_floor_area": { "value": 36.86, "quantity": "square metres" }, "party_wall_length": { "value": 6.74, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.04, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.61, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.38, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.43, "quantity": "metres" }, "total_floor_area": { "value": 12.61, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.38, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 920, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.0, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 111, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 866, "currency": "GBP" }, "hot_water_cost_current": { "value": 304, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 60, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 73 }, { "sequence": 2, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": "\u00a390 - \u00a3105", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 234, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 74 } ], "co2_emissions_potential": 2.7, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 64, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 304, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2225.46, "space_heating_existing_dwelling": 10345.63 }, "draughtproofed_door_count": 2, "energy_consumption_current": 174, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0290", "energy_consumption_potential": 150, "environmental_impact_current": 71, "cfl_fixed_lighting_bulbs_count": 6, "current_energy_efficiency_band": "C", "environmental_impact_potential": 74, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 31, "incandescent_fixed_lighting_bulbs_count": 3 }, "cert-176c6a5d2fd5": { "uprn": 100110363186, "roofs": [ { "description": "Pitched, 225 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "DH2 2BP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2025-06-19 16:24:58", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18204 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.76, "window_height": 1.13, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": 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"currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 693, "currency": "GBP" }, "hot_water_cost_current": { "value": 130, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 49, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 71 }, { "sequence": 2, "typical_saving": { "value": 66, "currency": "GBP" }, "indicative_cost": "\u00a3210 - \u00a3245", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, 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"hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2025-04-17 15:13:07", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 7, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15031 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, 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"sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.43, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 5.52, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 21.22, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.49, "quantity": "metres" }, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 5.52, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.22, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", 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"environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 561, "currency": "GBP" }, "hot_water_cost_current": { "value": 134, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 77, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 69 }, { "sequence": 2, "typical_saving": { "value": 48, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 71 }, { "sequence": 3, "typical_saving": { "value": 45, "currency": "GBP" 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"ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-cb6e04578864", "assessment_type": "RdSAP", "completion_date": "2026-02-20", "inspection_date": "2026-02-20", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 66, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-02-20", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.37, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.11, "quantity": "square metres" }, "party_wall_length": { "value": 7.44, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 16.34, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 33.09, "quantity": "square metres" }, "party_wall_length": { "value": 7.44, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.34, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "G", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 650, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.2, "energy_rating_average": 60, "energy_rating_current": 73, "lighting_cost_current": { "value": 46, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 603, "currency": "GBP" }, "hot_water_cost_current": { "value": 172, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 88, "suggested_improvements": [ { "sequence": 1, "typical_saving": { 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"value": 505, "currency": "GBP" }, "hot_water_cost_current": { "value": 100, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 68 }, { "sequence": 2, "typical_saving": { "value": 44, "currency": "GBP" }, "indicative_cost": "\u00a340", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 70 }, { "sequence": 3, "typical_saving": { "value": 24, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 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"space_heating_existing_dwelling": 6669 }, "seller_commission_report": "Y", "energy_consumption_current": 188, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": 8.3, "energy_consumption_potential": 74, "environmental_impact_current": 70, "fixed_lighting_outlets_count": 7, "current_energy_efficiency_band": "C", "environmental_impact_potential": 87, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 36, "low_energy_fixed_lighting_outlets_count": 2 } }, "EN75DR": { "cert-1138d64c2a9e": { "uprn": 148000758, "roofs": [ { "description": "Pitched, 400+ mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "EN7 5DR", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 4, "built_form": 4, "created_at": "2026-05-18 21:25:51", "door_count": 1, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": 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"pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.57, "window_height": 1.03, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.91, "window_height": 1.44, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.97, "window_height": 0.92, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 0.97, "window_height": 1.62, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.93, "window_height": 1.45, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-2b60c0cbcb77", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-05-18", "inspection_date": "2026-05-14", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 88, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-05-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.56, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 44.19, "quantity": "square metres" }, "party_wall_length": { "value": 18.87, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 14.29, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.61, "quantity": "metres" }, "total_floor_area": { "value": 44.19, "quantity": "square metres" }, "party_wall_length": { "value": 18.87, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.29, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "400mm+", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1085, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 66, "lighting_cost_current": { "value": 62, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room 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"GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,500", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 }, { "sequence": 4, "typical_saving": { "value": 218, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 62, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 273, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 75, "environmental_impact_rating": 96 } ], "hot_water_cost_potential": { "value": 192, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2640.57, "space_heating_existing_dwelling": 10094.6 }, "draughtproofed_door_count": 1, "energy_consumption_current": 215, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 119, "environmental_impact_current": 63, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 39, "low_energy_fixed_lighting_bulbs_count": 25, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-6755e9e94e49": { "uprn": 148041111, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Solid brick, as built, partial insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "EN7 5DR", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-03-09 17:02:42", "door_count": 1, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2113, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.7, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.3, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 0.3, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.5, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-0618b6c54ef1", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-03-09", "inspection_date": "2026-03-09", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 2, "flat_location": 0, "heat_loss_corridor": 2, "unheated_corridor_length": 7.9 }, "total_floor_area": 46, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-03-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.57, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 45.62, "quantity": "square metres" }, "party_wall_length": { "value": 4.2, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 30.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 20.303, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "N", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, 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"indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 75, "lighting_cost_potential": { "value": 39, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 161, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1943.61, "space_heating_existing_dwelling": 7678.47 }, "draughtproofed_door_count": 0, "energy_consumption_current": 296, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "sap_deselected_improvements": [ "O" ], "calculation_software_version": "5.02r0334", "energy_consumption_potential": 168, "environmental_impact_current": 61, "cfl_fixed_lighting_bulbs_count": 7, "current_energy_efficiency_band": "D", "environmental_impact_potential": 79, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 54, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-ea37d71bc8db": { "uprn": 148000770, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Flat, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Roof room(s), limited insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Mostly double glazing", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "EN7 5DR", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2025-08-25 20:01:03", "door_count": 1, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 4, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2110, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18217 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.85, "window_height": 1.39, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.85, "window_height": 1.39, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.67, "window_height": 1.48, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.67, "window_height": 1.48, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 1.76, "window_height": 0.71, "draught_proofed": "false", "window_location": 0, "window_wall_type": 4, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.62, "window_height": 0.71, "draught_proofed": "true", "window_location": 0, "window_wall_type": 4, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.49, "window_height": 1.09, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.84, "window_height": 1.41, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 1.98, "window_height": 0.59, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.86, "window_height": 1.58, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 0.86, "window_height": 1.58, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 0.28, "window_height": 1.51, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.28, "window_height": 1.51, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 5, "window_width": 0.79, "window_height": 0.47, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.63, "window_height": 1.84, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler with radiators and underfloor heating, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "End-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-3fe7cfec3e95", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-08-25", "inspection_date": "2025-08-12", "extensions_count": 3, "measurement_type": 1, "total_floor_area": 148, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-08-25", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": 11.82, "room_in_roof_type_1": { "gable_wall_type_1": 0, "gable_wall_type_2": 1, "gable_wall_length_1": 2.98, "gable_wall_length_2": 2.98 }, "construction_age_band": "L" }, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.84, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 29.41, "quantity": "square metres" }, "party_wall_length": { "value": 6.24, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 14.29, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.37, "quantity": "metres" }, "total_floor_area": { "value": 27.77, "quantity": "square metres" }, "party_wall_length": { "value": 6.24, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.69, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 1, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "rafter_insulation_thickness": "50mm" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 245, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.64, "quantity": "square metres" }, "party_wall_length": { "value": 5.94, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 1, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.37, "quantity": "metres" }, "total_floor_area": { "value": 11.64, "quantity": "square metres" }, "party_wall_length": { "value": 5.94, "quantity": "metres" }, "heat_loss_perimeter": { "value": 1.96, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.42, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 14.79, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.94, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.37, "quantity": "metres" }, "total_floor_area": { "value": 14.79, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 8.43, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 3", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 4, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.42, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 25.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 15.14, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1333, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.6, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 87, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "blocked_chimneys_count": 2, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 977, "currency": "GBP" }, "hot_water_cost_current": { "value": 235, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 81, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 279, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 72 }, { "sequence": 2, "typical_saving": { "value": 77, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 74 }, { "sequence": 3, "typical_saving": { "value": 249, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 3.4, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 87, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 236, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3054.73, "space_heating_existing_dwelling": 16050.53 }, "draughtproofed_door_count": 0, "energy_consumption_current": 171, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 98, "calculation_software_version": "5.02r0304", "energy_consumption_potential": 120, "environmental_impact_current": 66, "current_energy_efficiency_band": "C", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 31, "low_energy_fixed_lighting_bulbs_count": 18, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-71d29978cdf1": { "uprn": 148000757, "roofs": [ { "description": "Pitched, 100 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "EN7 5DR", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2025-03-05 13:24:33", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 17, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17507 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "End-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-604fae104012", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-03-05", "inspection_date": "2025-03-01", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 85, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2025-03-05", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 42.47, "quantity": "square metres" }, "party_wall_length": { "value": 12.15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 19.15, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 42.47, "quantity": "square metres" }, "party_wall_length": { "value": 12.15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 19.15, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", 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{ "value": 2.6, "quantity": "metres" }, "total_floor_area": { "value": 42.75, "quantity": "square metres" }, "party_wall_length": { "value": 18.82, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.28, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 588, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.6, "energy_rating_average": 60, "energy_rating_current": 66, "lighting_cost_current": { "value": 135, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, 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"main_heating_fraction": 1, "sap_main_heating_code": 102, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 12 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "end-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-4af3272ea84b", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2016-04-08", "inspection_date": "2016-04-08", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 87, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2016-04-08", 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"roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 922, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.5, "energy_rating_average": 60, "energy_rating_current": 51, "lighting_cost_current": { "value": 126, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 1, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 529, "currency": "GBP" }, "hot_water_cost_current": { "value": 203, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 341, "currency": "GBP" }, "indicative_cost": 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], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in all fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "HU17 9DW", "hot_water": { "description": { "value": "Gas multipoint", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": 2, "created_at": "2019-06-24 11:39:29.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 3, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 908, "water_heating_fuel": 26, "instantaneous_wwhrs": { 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"wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.38, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 22.84, "quantity": "square metres" }, "party_wall_length": { "value": 9.83, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 9.83, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 22.84, "quantity": "square metres" }, "party_wall_length": { "value": 9.83, "quantity": "metres" }, "heat_loss_perimeter": { "value": 9.83, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "G", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI" } ], "boilers_flues_count": 0, "open_chimneys_count": 0, "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 802, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 0.9, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 50, "currency": "GBP" }, "main_heating_controls": [ { "description": "Controls for high heat retention storage heaters", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "blocked_chimneys_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 733, "currency": "GBP" }, "hot_water_cost_current": { "value": 325, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": 69, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 87 }, { "sequence": 2, "typical_saving": 285, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 87, "environmental_impact_rating": 91 } ], "co2_emissions_potential": 0.6, "energy_rating_potential": 87, "lighting_cost_potential": { "value": 50, "currency": "GBP" }, "schema_version_original": "LIG-21.0.1", "flueless_gas_fires_count": 0, "hot_water_cost_potential": { "value": 325, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2008.13, "space_heating_existing_dwelling": 4491.49 }, "draughtproofed_door_count": 1, "energy_consumption_current": 216, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.3.74", "energy_consumption_potential": 170, "environmental_impact_current": 87, "cfl_fixed_lighting_bulbs_count": 0, "current_energy_efficiency_band": "C", "environmental_impact_potential": 91, "led_fixed_lighting_bulbs_count": 1, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 20, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-28158a25d9e1": { "uprn": 100091489269, "roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, limited insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "IP14 4EJ", "hot_water": { "description": "Electric immersion, off-peak", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 5 }, "post_town": "", "built_form": 6, "created_at": "2025-11-19 19:42:13", "door_count": 1, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 3, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 903, "water_heating_fuel": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 29, "heat_emitter_type": 0, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2602, "main_heating_category": 10, "main_heating_fraction": 1, "sap_main_heating_code": 691, "main_heating_data_source": 2 } ], "immersion_heating_type": 2, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 38 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.72, "window_height": 1.31, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.75, "window_height": 0.57, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.15, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.73, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Room heaters, electric", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 5 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-68138e8f0ef0", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-11-19", "inspection_date": "2025-11-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 47, "transaction_type": 1, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 3, "registration_date": "2025-11-19", "sap_energy_source": { "mains_gas": "N", "meter_type": 1, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 24.29, "quantity": "square metres" }, "party_wall_length": { "value": 6.07, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.39, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.35, "quantity": "metres" }, "total_floor_area": { "value": 22.95, "quantity": "square metres" }, "party_wall_length": { "value": 6.07, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.07, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 820, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 0.7, "energy_rating_average": 60, "energy_rating_current": 66, "lighting_cost_current": { "value": 50, "currency": "GBP" }, "main_heating_controls": [ { "description": "Appliance thermostats", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 456, "currency": "GBP" }, "hot_water_cost_current": { "value": 378, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 101, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 90 }, { "sequence": 2, "typical_saving": { "value": 254, "currency": "GBP" }, "indicative_cost": "\u00a31,200 - \u00a32,400", "improvement_type": "L2", "improvement_details": { "improvement_number": 61 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 91 }, { "sequence": 3, "typical_saving": { "value": 236, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 83, "environmental_impact_rating": 92 } ], "co2_emissions_potential": 0.5, "energy_rating_potential": 83, "lighting_cost_potential": { "value": 53, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 572, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 80, "environmental_impact_rating": 96 } ], "hot_water_cost_potential": { "value": 385, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1895.8, "space_heating_existing_dwelling": 2853.12 }, "draughtproofed_door_count": 1, "energy_consumption_current": 160, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 122, "environmental_impact_current": 89, "current_energy_efficiency_band": "D", "environmental_impact_potential": 92, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 15, "low_energy_fixed_lighting_bulbs_count": 5, "incandescent_fixed_lighting_bulbs_count": 1 }, "cert-4403776cd705": { "uprn": 100091489310, "roofs": [ { "description": "Pitched, 100 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "addendum_numbers": [ 8 ] }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "IP14 4EJ", "hot_water": { "description": "Electric immersion, off-peak", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 5 }, "post_town": "", "built_form": 4, "created_at": "2025-09-01 13:32:06", "door_count": 1, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 903, "water_heating_fuel": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 29, "heat_emitter_type": 0, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2605, "main_heating_category": 10, "main_heating_fraction": 1, "sap_main_heating_code": 691, "main_heating_data_source": 2 } ], "immersion_heating_type": 2, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 10.2, "sap_windows": [ { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.71, "window_height": 1.01, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.15, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.72, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 0.86, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Room heaters, electric", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 5 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-1df0dfed9a34", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-09-01", "inspection_date": "2025-09-01", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 46, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2025-09-01", "sap_energy_source": { "mains_gas": "N", "meter_type": 1, "pv_connection": 2, "photovoltaic_supply": { "pv_arrays": [ { "pitch": 3, "peak_power": 4.5, "orientation": 7, "overshading": 1 } ] }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "true", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "lzc_energy_sources": [ 11 ], "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 22.91, "quantity": "square metres" }, "party_wall_length": { "value": 13.62, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 6.06, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 22.62, "quantity": "square metres" }, "party_wall_length": { "value": 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"draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.82, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.75, "window_height": 1.81, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.55, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.59, "window_height": 0.85, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.55, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 2, "glazing_type": 2, "window_width": 0.74, "window_height": 0.93, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 2, "glazing_type": 2, "window_width": 0.74, "window_height": 0.93, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-a0f886567ccc", "assessment_type": "RdSAP", "completion_date": "2026-06-16", "inspection_date": "2026-05-01", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 116, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 7, "registration_date": "2026-06-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 4, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": 18.68, "room_in_roof_type_1": { "gable_wall_type_1": 2, "gable_wall_type_2": 2, "gable_wall_length_1": 4.5, "gable_wall_length_2": 4.5 }, "construction_age_band": "B" }, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.52, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 31.82, "quantity": "square metres" }, "party_wall_length": { "value": 14.1, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 6.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 30.81, "quantity": "square metres" }, "party_wall_length": { "value": 14.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 8.09, "wall_dry_lined": "N", "wall_thickness": 250, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.94, "quantity": "square metres" }, "party_wall_length": { "value": 4.05, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.45, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 10.94, "quantity": "square metres" }, "party_wall_length": { "value": 4.05, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.75, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 310, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.86, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.96, "quantity": "square metres" }, "party_wall_length": { "value": 4.8, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 1287, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.8, "energy_rating_average": 60, "energy_rating_current": 66, "lighting_cost_current": { "value": 79, "currency": "GBP" }, "main_heating_controls": [ { "description": "Room thermostat and TRVs", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1117, "currency": "GBP" }, "hot_water_cost_current": { "value": 345, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 115, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 70 }, { "sequence": 3, "typical_saving": { "value": 232, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 71 } ], "co2_emissions_potential": 3.2, "energy_rating_potential": 73, "lighting_cost_potential": { "value": 79, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 37, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 67, "environmental_impact_rating": 68 } ], "hot_water_cost_potential": { "value": 345, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2138.21, "space_heating_existing_dwelling": 13670.25 }, "draughtproofed_door_count": 2, "energy_consumption_current": 182, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 149, "environmental_impact_current": 65, "current_energy_efficiency_band": "D", "environmental_impact_potential": 71, "led_fixed_lighting_bulbs_count": 73, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 32, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-cb2d0727fda1": { "uprn": 77132893, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-06-16 14:13:16", "door_count": 2, "region_code": 19, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17701 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.56, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.56, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.82, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.75, "window_height": 1.81, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.05, "window_height": 1.46, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.59, "window_height": 0.85, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.49, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.22, "window_height": 0.85, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-ba43c9c707f5", "assessment_type": "RdSAP", "completion_date": "2026-06-16", "inspection_date": "2026-05-01", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 98, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 7, "registration_date": "2026-06-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 3, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.52, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 31.82, "quantity": "square metres" }, "party_wall_length": { "value": 14.1, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 6.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.74, "quantity": "metres" }, "total_floor_area": { "value": 30.81, "quantity": "square metres" }, "party_wall_length": { "value": 14.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 8.54, "wall_dry_lined": "N", "wall_thickness": 250, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.8, "quantity": "square metres" }, "party_wall_length": { "value": 4, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.4, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.72, "quantity": "metres" }, "total_floor_area": { "value": 10.8, "quantity": "square metres" }, "party_wall_length": { "value": 4, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 310, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.76, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 13.5, "quantity": "square metres" }, "party_wall_length": { "value": 5, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 925, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.7, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 58, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 745, "currency": "GBP" }, "hot_water_cost_current": { "value": 251, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 137, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 76 }, { "sequence": 2, "typical_saving": { "value": 42, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 77 }, { "sequence": 3, "typical_saving": { "value": 217, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.1, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 58, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 251, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2058.01, "space_heating_existing_dwelling": 9285.67 }, "draughtproofed_door_count": 2, "energy_consumption_current": 156, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 116, "environmental_impact_current": 72, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 37, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 28, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-1c179278d7a6": { "uprn": 77132872, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Pitched, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 15 ], "cavity_fill_recommended": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2026-06-16 14:11:20", "door_count": 2, "region_code": 19, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18907 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.56, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.56, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 2, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.75, "window_height": 1.81, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.55, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, 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"description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "End-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-8101a807220f", "assessment_type": "RdSAP", "completion_date": "2026-06-16", "inspection_date": "2026-05-01", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 102, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2026-06-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 3, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.57, "quantity": "square metres" }, "party_wall_length": { "value": 7.85, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 13.75, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.77, "quantity": "metres" }, "total_floor_area": { "value": 33.35, "quantity": "square metres" }, "party_wall_length": { "value": 7.25, "quantity": "metres" }, "heat_loss_perimeter": { "value": 13.75, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 10.87, "wall_dry_lined": "N", "wall_thickness": 250, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.63, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.21, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.7, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.6, "quantity": "metres" }, "total_floor_area": { "value": 11.21, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 22.74, "wall_dry_lined": "N", "wall_thickness": 260, "wall_construction": 4, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 310, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.56, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.61, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1328, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.0, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 60, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1141, "currency": "GBP" }, "hot_water_cost_current": { "value": 185, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 127, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 64 }, { "sequence": 2, "typical_saving": { "value": 60, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 210, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 67 } ], "co2_emissions_potential": 3.3, "energy_rating_potential": 73, "lighting_cost_potential": { "value": 60, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 152, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 71, "environmental_impact_rating": 68 } ], "hot_water_cost_potential": { "value": 185, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2229.16, "space_heating_existing_dwelling": 14248.95 }, "draughtproofed_door_count": 2, "energy_consumption_current": 212, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 172, "environmental_impact_current": 60, "cfl_fixed_lighting_bulbs_count": 1, "current_energy_efficiency_band": "D", "environmental_impact_potential": 67, "led_fixed_lighting_bulbs_count": 12, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 39, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-b14aff69be98": { "uprn": 77132881, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Roof room(s), limited insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-01-22 05:20:08", "door_count": 2, "region_code": 19, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16138 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 2, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.9, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.2, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 2, "glazing_type": 2, "window_width": 0.8, "window_height": 0.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.4, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.8, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 2, "glazing_type": 2, "window_width": 1, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.7, "window_height": 1, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-ed74afdfc20d", "assessment_type": "RdSAP", "completion_date": "2026-01-22", "inspection_date": "2026-01-16", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 112, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 7, "registration_date": "2026-01-22", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": 19.22, "room_in_roof_type_1": { "gable_wall_type_1": 2, "gable_wall_type_2": 2, "gable_wall_length_1": 5.1, "gable_wall_length_2": 5.1 }, "construction_age_band": "L" }, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 43.82, "quantity": "square metres" }, "party_wall_length": { "value": 18.82, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 11.03, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.3, "quantity": "metres" }, "total_floor_area": { "value": 42.38, "quantity": "square metres" }, "party_wall_length": { "value": 18.82, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.9, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 350, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6.91, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 8.07, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 956, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 72, "lighting_cost_current": { "value": 76, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 745, "currency": "GBP" }, "hot_water_cost_current": { "value": 180, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 158, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 76 }, { "sequence": 3, "typical_saving": { "value": 220, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.4, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 76, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 47, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 76, "environmental_impact_rating": 76 } ], "hot_water_cost_potential": { "value": 180, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2415.35, "space_heating_existing_dwelling": 10879.01 }, "draughtproofed_door_count": 2, "energy_consumption_current": 157, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 115, "environmental_impact_current": 70, 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"description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 0, "built_form": 4, "created_at": "2025-11-11 11:05:59", "door_count": 2, "region_code": 1, "report_type": 2, "sap_heating": { "number_baths": 2, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 0, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18559 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 9, "window_type": 2, "glazing_type": 2, "window_width": 1.1, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 2, "glazing_type": 2, "window_width": 1, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 2, "glazing_type": 2, "window_width": 1, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.65, "window_height": 0.65, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.5, "draught_proofed": "true", 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"window_width": 1, "window_height": 1.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.9, "window_height": 1.1, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.8, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-547831d1b02a", "assessment_type": "RdSAP", "completion_date": "2025-11-11", "inspection_date": "2025-11-11", "extensions_count": 1, "measurement_type": 1, "open_flues_count": 0, "total_floor_area": 93, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "false", "heated_room_count": 5, "other_flues_count": 0, "registration_date": "2025-11-11", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_diverter": "false", "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false", "is_hydro_output_connected_to_dwelling_meter": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 0, "extract_fans_count": 3, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 17.8, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 9.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.3, "quantity": "metres" }, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 17.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.69, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 12.1, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 7, "sloping_ceiling_insulation_thickness": "100mm" } ], "boilers_flues_count": 1, "open_chimneys_count": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 833, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.9, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 58, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "blocked_chimneys_count": 2, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 657, "currency": "GBP" }, "hot_water_cost_current": { "value": 207, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": 125, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 73 }, { "sequence": 2, "typical_saving": 51, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 75 }, { "sequence": 3, "typical_saving": 211, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 76 } ], "co2_emissions_potential": 2.2, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 58, "currency": "GBP" }, "schema_version_original": "LIG-21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": 34, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 74, "environmental_impact_rating": 74 } ], "flueless_gas_fires_count": 0, "hot_water_cost_potential": { "value": 208, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2669.77, "space_heating_existing_dwelling": 9226.49 }, "draughtproofed_door_count": 2, "energy_consumption_current": 172, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.3.74", "energy_consumption_potential": 127, "environmental_impact_current": 69, "cfl_fixed_lighting_bulbs_count": 0, "current_energy_efficiency_band": "C", "environmental_impact_potential": 76, "led_fixed_lighting_bulbs_count": 18, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 31, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-d0b1ec3335ba": { "uprn": 77132883, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Mostly double glazing", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "psv_count": 0, "built_form": 4, "created_at": "2025-09-24 13:15:49", "door_count": 2, "region_code": 1, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 0, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18228 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 5, "window_width": 0.76, "window_height": 0.52, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.79, "window_height": 1.77, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.18, "window_height": 1.77, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 0.79, "window_height": 1.77, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.08, "window_height": 1.79, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.49, "window_height": 1.03, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 0.86, "window_height": 1.45, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.02, "window_height": 1.59, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.09, "window_height": 1.6, "draught_proofed": "true", 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"country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-90f51aaf8adb", "assessment_type": "RdSAP", "completion_date": "2025-09-24", "inspection_date": "2025-09-19", "extensions_count": 2, "measurement_type": 1, "open_flues_count": 0, "total_floor_area": 92, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "false", "heated_room_count": 6, "other_flues_count": 0, "registration_date": "2025-09-24", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_diverter": "false", "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true", "is_hydro_output_connected_to_dwelling_meter": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 0, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.18, "quantity": "square metres" }, "party_wall_length": { "value": 14.86, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 6.56, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.72, "quantity": "metres" }, "total_floor_area": { "value": 31.09, "quantity": "square metres" }, "party_wall_length": { "value": 14.26, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.96, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.68, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.59, "quantity": "square metres" }, "party_wall_length": { "value": 4.2, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.6, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 1.91, "quantity": "metres" }, "total_floor_area": { "value": 11.59, "quantity": "square metres" }, "party_wall_length": { "value": 4.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.96, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.15, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 4.58, "quantity": "square metres" }, "party_wall_length": { "value": 1.66, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.42, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", 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"floor_construction": 2, "heat_loss_perimeter": { "value": 9.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.3, "quantity": "metres" }, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 17.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.3, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.2, "quantity": "metres" }, "total_floor_area": { "value": 40, "quantity": "square metres" }, "party_wall_length": { "value": 17.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 1, "rafter_insulation_thickness": "100mm" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 4, "building_part_number": 2, 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4 } ], "blocked_chimneys_count": 2, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 899, "currency": "GBP" }, "hot_water_cost_current": { "value": 253, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": 207, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 2, "typical_saving": 59, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 74 }, { "sequence": 3, "typical_saving": 231, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 3, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 78, "currency": "GBP" }, "schema_version_original": "LIG-21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": 58, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 74, "environmental_impact_rating": 73 } ], "flueless_gas_fires_count": 0, "hot_water_cost_potential": { "value": 254, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2687.0, "space_heating_existing_dwelling": 13706.71 }, "draughtproofed_door_count": 2, "energy_consumption_current": 164, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.3.74", "energy_consumption_potential": 121, "environmental_impact_current": 67, "cfl_fixed_lighting_bulbs_count": 0, 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"room_height": { "value": 2.46, "quantity": "metres" }, "total_floor_area": { "value": 9.09, "quantity": "square metres" }, "party_wall_length": { "value": 2.45, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.19, "quantity": "metres" } } ], "wall_insulation_type": 3, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "50mm", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.29, "quantity": "square metres" }, "party_wall_length": { "value": 2.45, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.67, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 548, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.4, "energy_rating_average": 60, "energy_rating_current": 74, "lighting_cost_current": { "value": 90, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 548, "currency": "GBP" }, "hot_water_cost_current": { "value": 90, 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{ "value": 5.22, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.94, "quantity": "square metres" }, "party_wall_length": { "value": 2.48, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.68, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.72, "quantity": "metres" }, "total_floor_area": { "value": 7.94, "quantity": "square metres" }, "party_wall_length": { "value": 2.48, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.68, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 80, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 630, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 60, "lighting_cost_current": { "value": 59, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 630, "currency": "GBP" }, "hot_water_cost_current": { "value": 75, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "co2_emissions_potential": 3.5, "energy_rating_potential": 60, "lighting_cost_potential": { "value": 59, "currency": "GBP" }, "schema_version_original": "LIG-18.0", "hot_water_cost_potential": { "value": 75, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1698, "impact_of_loft_insulation": -2485, "space_heating_existing_dwelling": 11396 }, "energy_consumption_current": 305, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 50, "sap_deselected_improvements": [ "Q", "D", "N", "O", "P", "U" ], "calculation_software_version": "2.1.0.0", "energy_consumption_potential": 305, "environmental_impact_current": 54, "fixed_lighting_outlets_count": 10, "windows_transmission_details": { "u_value": 3.1, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 54, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "D", "co2_emissions_current_per_floor_area": 54, "low_energy_fixed_lighting_outlets_count": 8 }, "cert-4cbc1ea1fad5": { "uprn": 77132884, "roofs": [ { "description": { "value": "Pitched, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 80% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2019-03-03 09:34:42.000000", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16840 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.93, "schema_type": "RdSAP-Schema-18.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and underfloor heating, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-fbe37c74095b", "assessment_type": "RdSAP", "completion_date": "2019-03-03", "inspection_date": "2019-02-25", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 76, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "false", "registration_date": "2019-03-03", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 24.6, "quantity": "square metres" }, "party_wall_length": { "value": 12.78, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 5.22, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.72, "quantity": "metres" }, "total_floor_area": { "value": 24.6, "quantity": "square metres" }, "party_wall_length": { "value": 12.78, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.22, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.94, "quantity": "square metres" }, "party_wall_length": { "value": 2.48, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.2, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.72, "quantity": "metres" }, "total_floor_area": { "value": 7.94, "quantity": "square metres" }, "party_wall_length": { "value": 2.48, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.68, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.72, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.59, "quantity": "square metres" }, "party_wall_length": { "value": 2.48, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.02, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 80, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 769, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.3, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 67, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 769, "currency": "GBP" }, "hot_water_cost_current": { "value": 79, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "co2_emissions_potential": 4.3, "energy_rating_potential": 56, "lighting_cost_potential": { "value": 67, "currency": "GBP" }, "schema_version_original": "LIG-18.0", "hot_water_cost_potential": { "value": 79, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1799, "impact_of_loft_insulation": -3282, "space_heating_existing_dwelling": 14512 }, "energy_consumption_current": 323, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "sap_deselected_improvements": [ "Q", "D", "N", "U" ], "calculation_software_version": "2.1.0.0", "energy_consumption_potential": 323, "environmental_impact_current": 49, "fixed_lighting_outlets_count": 10, "windows_transmission_details": { "u_value": 3.1, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 49, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "D", "co2_emissions_current_per_floor_area": 57, "low_energy_fixed_lighting_outlets_count": 8 }, "cert-8220fc5b2fcb": { "uprn": 77132896, "roofs": [ { "description": { "value": "Pitched, 270 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": { "value": "Low energy lighting in 79% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "M14 6NB", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2018-12-12 18:03:32", "door_count": 2, "glazed_area": 1, "glazing_gap": 12, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16839 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.93, "schema_type": "RdSAP-Schema-18.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "end-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-913ed4e75b2c", "assessment_type": "RdSAP", "completion_date": "2018-12-12", "inspection_date": "2018-12-12", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 81, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2018-12-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 360, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_alternative_wall": { "wall_area": 28.63, "wall_dry_lined": "Y", "wall_thickness": 265, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.8, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 38.6, "quantity": "square metres" }, "party_wall_length": { "value": 10.82, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 17.59, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.8, "quantity": "metres" }, "total_floor_area": { "value": 38.86, "quantity": "square metres" }, "party_wall_length": 0, "heat_loss_perimeter": { "value": 19.51, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "Y", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.75, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 3.95, "quantity": "square metres" }, "party_wall_length": { "value": 2.03, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.98, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 79, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 622, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 71, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 452, "currency": "GBP" }, "hot_water_cost_current": { "value": 83, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 52, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 63 }, { "sequence": 2, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 39, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, 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"main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-38e29548e37b", "assessment_type": "RdSAP", "completion_date": "2015-09-13", "inspection_date": "2015-09-12", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 91, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2015-09-13", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, 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"party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.67, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.91, "quantity": "square metres" }, "party_wall_length": { "value": 3.97, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.97, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.67, "quantity": "metres" }, "total_floor_area": { "value": 10.91, "quantity": "square metres" }, "party_wall_length": { "value": 3.97, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.72, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.67, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.69, "quantity": "square metres" }, "party_wall_length": { "value": 2.07, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.82, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 50, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 847, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.7, "energy_rating_average": 60, "energy_rating_current": 58, "lighting_cost_current": { "value": 87, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 440, "currency": "GBP" }, "hot_water_cost_current": { "value": 133, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 88, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 33, "currency": "GBP" }, "indicative_cost": 350, "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 59, "environmental_impact_rating": 52 }, { "sequence": 2, "typical_saving": { "value": 250, "currency": "GBP" }, "indicative_cost": "14,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 65 }, { "sequence": 3, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 67 }, { "sequence": 4, "typical_saving": { "value": 24, "currency": "GBP" }, "indicative_cost": 25, "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 67 }, { "sequence": 5, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": 450, "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 69 }, { "sequence": 6, "typical_saving": { "value": 92, "currency": "GBP" }, "indicative_cost": "3,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 74 }, { "sequence": 7, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 76 }, { "sequence": 8, "typical_saving": { "value": 245, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 87, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 87, 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"main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 27, "boiler_flue_type": 2, "heat_emitter_type": 1, "boiler_index_number": 9105, "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "main_heating_data_source": 1 } ], "has_fixed_air_conditioning": "false" }, "sap_version": 9.91, "schema_type": "SAP-Schema-16.3", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, LPG", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-36f93c340dd4", "schema_version": "LIG-16.1", "assessment_type": "RdSAP", "completion_date": "2014-09-01", "inspection_date": "2014-09-01", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 87, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2014-09-01", 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0, "room_height": 2.61, "floor_insulation": 1, "total_floor_area": 25.04, "heat_loss_perimeter": 14.92 } ], "wall_insulation_type": 4, "construction_age_band": "G", "wall_thickness_measured": "N", "roof_insulation_location": 4, "roof_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "bedf_revision_number": 332, "habitable_room_count": 4, "heating_cost_current": { "value": 703, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.9, "energy_rating_average": 60, "energy_rating_current": 61, "lighting_cost_current": { "value": 120, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 554, "currency": "GBP" }, "hot_water_cost_current": { "value": 208, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 62, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 60 }, { "sequence": 2, "typical_saving": { "value": 14, "currency": "GBP" }, "indicative_cost": "\u00a315 - \u00a330", "improvement_type": "C", "improvement_details": { "improvement_number": 3 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 61 }, { "sequence": 3, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a3170", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 62 }, { "sequence": 4, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a3200 - \u00a3400", "improvement_type": "F", "improvement_details": { "improvement_number": 4 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 63 }, { "sequence": 5, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 6, "typical_saving": { "value": 104, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 71 }, { "sequence": 7, "typical_saving": { "value": 38, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { 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6, "energy_performance_rating": 75, "environmental_impact_rating": 72 } ], "hot_water_cost_potential": { "value": 71, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3906, "impact_of_loft_insulation": -565, "space_heating_existing_dwelling": 11212 }, "seller_commission_report": "Y", "energy_consumption_current": 217, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "v2.1.0", "energy_consumption_potential": 88, "environmental_impact_current": 57, "fixed_lighting_outlets_count": 34, "current_energy_efficiency_band": "D", "environmental_impact_potential": 80, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 42, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-1fdc622357a0": { "uprn": 10014306241, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": 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"construction_age_band": "K", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "bedf_revision_number": 326, "habitable_room_count": 4, "heating_cost_current": { "value": 245, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.6, "energy_rating_average": 60, "energy_rating_current": 79, "lighting_cost_current": { "value": 101, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, no room thermostat", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 253, "currency": "GBP" }, "hot_water_cost_current": { "value": 87, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 43, "currency": 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"co2_emissions_current_per_floor_area": 19, "low_energy_fixed_lighting_outlets_count": 0 } }, "N12RX": { "cert-523291f90aac": { "uprn": 5300086347, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Flat, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-02-09 16:20:42", "door_count": 2, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 19006 } ], "immersion_heating_type": "NA", 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"permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 2.18, "window_height": 1.26, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 2.17, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.55, "window_height": 1.26, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-1ce1d93890e7", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-02-09", "inspection_date": "2026-01-30", "extensions_count": 1, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 5, "flat_location": 0, "heat_loss_corridor": 0 }, "total_floor_area": 80, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-02-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 480, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.48, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 57.35, "quantity": "square metres" }, "party_wall_length": { "value": 3.96, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 22.37, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", 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"true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.5, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.43, "window_height": 1.16, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-53dbe812ea2e", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-01-11", "inspection_date": "2026-01-10", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 3, "heat_loss_corridor": 0 }, "total_floor_area": 39, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 2, "registration_date": "2026-01-11", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 381, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.44, "quantity": "metres" }, "total_floor_area": { "value": 39.03, "quantity": "square metres" }, "party_wall_length": { "value": 8.79, "quantity": "metres" }, "heat_loss_perimeter": { "value": 20.93, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 416, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.3, "energy_rating_average": 60, "energy_rating_current": 72, "lighting_cost_current": { "value": 30, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 241, "currency": "GBP" }, "hot_water_cost_current": { "value": 142, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 142, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 84 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 86 } ], "co2_emissions_potential": 0.8, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 30, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 145, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1825.59, "space_heating_existing_dwelling": 3595.57 }, "draughtproofed_door_count": 3, "energy_consumption_current": 191, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 115, "environmental_impact_current": 75, "current_energy_efficiency_band": "C", "environmental_impact_potential": 86, "led_fixed_lighting_bulbs_count": 8, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 35, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-7195a933f10d": { "uprn": 5300086355, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-19 18:06:09", "door_count": 3, "region_code": 17, "report_type": 2, 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13, "window_width": 0.44, "window_height": 0.86, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.53, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.53, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-14c2ab85e2c2", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-12-19", "inspection_date": "2025-12-19", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 2, "heat_loss_corridor": 0 }, "total_floor_area": 29, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 1, "registration_date": "2025-12-19", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 373, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "total_floor_area": { "value": 28.67, "quantity": "square metres" }, "party_wall_length": { "value": 7.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 15.3, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 1, "heating_cost_current": { "value": 368, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.0, "energy_rating_average": 60, "energy_rating_current": 68, "lighting_cost_current": { "value": 25, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 226, "currency": "GBP" }, "hot_water_cost_current": { "value": 210, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 110, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 86 }, { "sequence": 2, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 88 } ], "co2_emissions_potential": 0.6, "energy_rating_potential": 75, "lighting_cost_potential": { "value": 25, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 211, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1402.97, "space_heating_existing_dwelling": 2969.9 }, "draughtproofed_door_count": 3, "energy_consumption_current": 211, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 126, "environmental_impact_current": 79, "current_energy_efficiency_band": "D", "environmental_impact_potential": 88, "led_fixed_lighting_bulbs_count": 9, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 36, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-6fed79baea57": { "uprn": 5300086358, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-16 17:36:46", "door_count": 3, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17982 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.98, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.49, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-eb369a055b68", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-12-16", "inspection_date": "2025-12-16", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 3, "heat_loss_corridor": 0 }, "total_floor_area": 28, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 1, "registration_date": "2025-12-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 350, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 27.75, "quantity": "square metres" }, "party_wall_length": { "value": 10.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.68, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 1, "heating_cost_current": { "value": 326, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.0, "energy_rating_average": 60, "energy_rating_current": 73, "lighting_cost_current": { "value": 25, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 210, "currency": "GBP" }, "hot_water_cost_current": { "value": 131, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 84, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 84 }, { "sequence": 2, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 87 } ], "co2_emissions_potential": 0.6, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 25, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 131, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1756.64, "space_heating_existing_dwelling": 2397.23 }, "draughtproofed_door_count": 3, "energy_consumption_current": 204, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 132, "environmental_impact_current": 79, "cfl_fixed_lighting_bulbs_count": 1, "current_energy_efficiency_band": "C", "environmental_impact_potential": 87, "led_fixed_lighting_bulbs_count": 3, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 37, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-304158258b51": { "uprn": 5300086349, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-12 18:18:15", "door_count": 3, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10242 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.55, "window_height": 1.26, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 0.45, "window_height": 1.17, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 1.08, "window_height": 0.97, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-24fe9f95ec4d", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-12-12", "inspection_date": "2025-12-12", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 1, "heat_loss_corridor": 0 }, "total_floor_area": 40, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 2, "registration_date": "2025-12-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 350, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.44, "quantity": "metres" }, "total_floor_area": { "value": 40.34, "quantity": "square metres" }, "party_wall_length": { "value": 9, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.14, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 514, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.4, "energy_rating_average": 60, "energy_rating_current": 68, "lighting_cost_current": { "value": 48, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 279, "currency": "GBP" }, "hot_water_cost_current": { "value": 146, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 194, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 84 }, { "sequence": 2, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 0.8, "energy_rating_potential": 77, "lighting_cost_potential": { "value": 48, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 147, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1951.87, "space_heating_existing_dwelling": 3578.94 }, "draughtproofed_door_count": 3, "energy_consumption_current": 198, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 118, "environmental_impact_current": 75, "current_energy_efficiency_band": "D", "environmental_impact_potential": 85, "led_fixed_lighting_bulbs_count": 7, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 34, "incandescent_fixed_lighting_bulbs_count": 3 }, "cert-73942d4686b6": { "uprn": 5300086361, "roofs": [ { "description": "Flat, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-12 19:03:33", "door_count": 3, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18907 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.55, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 1.04, "window_height": 0.95, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.53, "window_height": 1.26, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.53, "window_height": 1.26, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.46, "window_height": 1.15, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-73cda45e82c1", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-12-12", "inspection_date": "2025-12-12", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 5, "flat_location": 4, "heat_loss_corridor": 0 }, "total_floor_area": 40, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 2, "registration_date": "2025-12-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 6, "roof_construction": 1, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "total_floor_area": { "value": 40.4, "quantity": "square metres" }, "party_wall_length": { "value": 8.89, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.47, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "flat_roof_insulation_thickness": "200mm" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 489, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 43, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and 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"lighting_cost_potential": { "value": 43, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 36, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 76, "environmental_impact_rating": 82 } ], "hot_water_cost_potential": { "value": 121, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1622.67, "space_heating_existing_dwelling": 4601.14 }, "draughtproofed_door_count": 3, "energy_consumption_current": 208, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 142, "environmental_impact_current": 73, "cfl_fixed_lighting_bulbs_count": 1, "current_energy_efficiency_band": "C", "environmental_impact_potential": 82, "led_fixed_lighting_bulbs_count": 3, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 38, "incandescent_fixed_lighting_bulbs_count": 1 }, "cert-8663fe9c4845": { "uprn": 5300086362, "roofs": [ { "description": "Flat, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "N1 2RX", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-12 20:00:57", "door_count": 3, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16212 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.94, "window_height": 1.16, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 0.46, "window_height": 1.17, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.54, "window_height": 1.27, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-c2bf1031b108", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-12-12", "inspection_date": "2025-12-12", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 5, "flat_location": 4, "heat_loss_corridor": 0 }, "total_floor_area": 28, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 1, "registration_date": "2025-12-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 289, "floor_heat_loss": 6, "roof_construction": 1, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.48, "quantity": "metres" }, "total_floor_area": { "value": 28.45, "quantity": "square metres" }, "party_wall_length": { "value": 11.04, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.82, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "flat_roof_insulation_thickness": "200mm" } ], "solar_water_heating": "N", "habitable_room_count": 1, "heating_cost_current": { "value": 374, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.2, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 24, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 270, "currency": "GBP" }, "hot_water_cost_current": { "value": 132, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 72, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 80 }, { "sequence": 2, "typical_saving": { "value": 31, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 82 } ], "co2_emissions_potential": 0.8, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 24, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 20, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 75, "environmental_impact_rating": 82 } ], "hot_water_cost_potential": { "value": 132, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1770.84, "space_heating_existing_dwelling": 3023.89 }, "draughtproofed_door_count": 3, "energy_consumption_current": 229, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 166, "environmental_impact_current": 76, "current_energy_efficiency_band": "C", "environmental_impact_potential": 82, "led_fixed_lighting_bulbs_count": 5, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 41, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-721b9a23a3cf": { "uprn": 5300086360, "roofs": [ { "description": "Flat, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "High performance glazing", 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1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17985 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 0.46, "window_height": 1.18, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.45, "window_height": 1.18, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 0.58, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, 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"None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 380, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.47, "total_floor_area": 34.39, "heat_loss_perimeter": 16.86 } ], "wall_insulation_type": 4, "construction_age_band": "C", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "bedf_revision_number": 326, "habitable_room_count": 1, "heating_cost_current": { "value": 349, "currency": "GBP" }, "co2_emissions_current": 1.9, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 44, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 218, "currency": "GBP" }, "hot_water_cost_current": { "value": 70, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 101, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a34,000 - \u00c2\u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 79 }, { "sequence": 2, "typical_saving": { "value": 19, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a325", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 80 }, { "sequence": 3, "typical_saving": { "value": 20, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a32,200 - \u00c2\u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 83 }, { "sequence": 4, "typical_saving": { "value": 10, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3585 - \u00c2\u00a3725", "improvement_type": "Y", "improvement_details": { "improvement_number": 49 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 0.9, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 22, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 93, "currency": "GBP" }, "improvement_type": "Z1", "improvement_details": { "improvement_number": 51 }, "improvement_category": 6, "energy_performance_rating": 82, "environmental_impact_rating": 84 } ], "hot_water_cost_potential": { "value": 49, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1473, "impact_of_solid_wall_insulation": -2702, "space_heating_existing_dwelling": 4678 }, "seller_commission_report": "Y", "energy_consumption_current": 285, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "9.0.5", "energy_consumption_potential": 138, "environmental_impact_current": 67, "fixed_lighting_outlets_count": 5, "current_energy_efficiency_band": "D", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 54, "low_energy_fixed_lighting_outlets_count": 0 } }, "N226AA": { "cert-3aee235526c9": { "uprn": 100021199910, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "N22 6AA", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-04-15 22:02:44", "door_count": 0, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2113, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18762 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.2, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.2, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-4911ad9b519b", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-04-15", "inspection_date": "2026-04-14", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 1, "flat_location": 1, "heat_loss_corridor": 0 }, "total_floor_area": 77, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-04-15", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 6, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "total_floor_area": { "value": 77.01, "quantity": "square metres" }, "party_wall_length": { "value": 30.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 465, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 79, "lighting_cost_current": { "value": 65, "currency": "GBP" }, "main_heating_controls": [ { "description": "Room thermostat and TRVs", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 389, "currency": "GBP" }, "hot_water_cost_current": { "value": 197, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 76, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 1.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 65, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 21, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 81, "environmental_impact_rating": 85 } ], "hot_water_cost_potential": { "value": 198, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2375.83, "space_heating_existing_dwelling": 3807.25 }, "draughtproofed_door_count": 0, "energy_consumption_current": 110, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0342", "energy_consumption_potential": 95, "environmental_impact_current": 81, "current_energy_efficiency_band": 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"Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "N22 6AA", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-01-28 21:29:02", "door_count": 1, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2113, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17973 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.65, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 1.8, "window_height": 1.6, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.3, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.7, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.5, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.5, "window_height": 1.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-21fa33edd776", "assessment_type": "RdSAP", "completion_date": "2026-01-28", "inspection_date": "2026-01-28", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 118, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-01-28", "sap_energy_source": { "mains_gas": "Y", "meter_type": 1, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.65, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 54.01, "quantity": "square metres" }, "party_wall_length": { "value": 18.9, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 13.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 54.01, "quantity": "square metres" }, "party_wall_length": { "value": 18.9, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.9, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { 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"schema_type": "SAP-Schema-16.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Ground-floor flat", "language_code": 1, "property_type": 2, "address_line_1": "addr-feb3d3a471a7", "schema_version": "LIG-16.0", "assessment_type": "RdSAP", "completion_date": "2012-07-31", "inspection_date": "2012-07-31", "extensions_count": 1, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "flat_location": 0, "heat_loss_corridor": 2, "unheated_corridor_length": 3.85 }, "total_floor_area": 57, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2012-05-02", "restricted_access": 0, "sap_energy_source": { "main_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "percent_roof_area": 0 }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": 3.08, "floor_insulation": 1, "total_floor_area": 34.73, "floor_construction": 2, "heat_loss_perimeter": 10.54 } ], "wall_insulation_type": 4, "construction_age_band": "A", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.55, "floor_insulation": 1, "total_floor_area": 21.86, "floor_construction": 2, "heat_loss_perimeter": 10.16 } ], "wall_insulation_type": 4, "construction_age_band": "A", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND" } ], "low_energy_lighting": 71, "solar_water_heating": "N", "bedf_revision_number": 325, "habitable_room_count": 3, "heating_cost_current": { "value": 479, "currency": "GBP" }, "co2_emissions_current": 2.7, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 44, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 281, "currency": "GBP" }, "hot_water_cost_current": { "value": 77, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 50, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 110, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a34,000 - \u00c2\u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": { "value": 42, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3800 - \u00c2\u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 78 }, { "sequence": 3, "typical_saving": { "value": 8, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a310", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 78 }, { "sequence": 4, "typical_saving": { "value": 14, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3585 - \u00c2\u00a3725", "improvement_type": "Y", "improvement_details": { "improvement_number": 49 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 79 }, { "sequence": 5, "typical_saving": { "value": 15, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a33,300 - \u00c2\u00a36,500", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 81 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 77, "lighting_cost_potential": { "value": 34, "currency": "GBP" }, "hot_water_cost_potential": { "value": 63, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1809, "impact_of_solid_wall_insulation": -3023, "space_heating_existing_dwelling": 7694 }, "seller_commission_report": "Y", "energy_consumption_current": 245, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 62, "calculation_software_version": "9.0.5", "energy_consumption_potential": 129, "environmental_impact_current": 63, 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"environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "NG19 7PE", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-04-24 17:39:04", "door_count": 2, "region_code": 3, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16930 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": 12, "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 2.41, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.61, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.61, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.75, "window_height": 1.17, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 2, "glazing_type": 3, "window_width": 0.6, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 2.31, "window_height": 1.03, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.72, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 2.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-2967e7923088", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-04-24", "inspection_date": "2026-04-17", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 74, "transaction_type": 1, "conservatory_type": 3, "heated_room_count": 3, "registration_date": "2026-04-24", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 59.12, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 27.29, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 14.65, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.07, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "F", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 1353, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.1, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 76, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 906, "currency": "GBP" }, "hot_water_cost_current": { "value": 277, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 82, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 271, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 72 }, { "sequence": 2, "typical_saving": { "value": 137, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 76 }, { "sequence": 3, "typical_saving": { "value": 43, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 77 }, { "sequence": 4, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a390 - \u00a3105", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 77 }, { "sequence": 5, "typical_saving": { "value": 229, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 73, "lighting_cost_potential": { "value": 48, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 277, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1574.88, "space_heating_existing_dwelling": 11752.86 }, "draughtproofed_door_count": 0, "energy_consumption_current": 247, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0342", "energy_consumption_potential": 151, "environmental_impact_current": 65, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 6, "has_heated_separate_conservatory": "true", 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"environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 8 ] }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "NN15 5BT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2025-11-14 10:51:51", "door_count": 1, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 102, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 2, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.37, "window_height": 2.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.77, "window_height": 2.04, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.75, "window_height": 1.43, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.86, "window_height": 0.57, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.74, "window_height": 1.38, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", 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2, "window_width": 1.13, "window_height": 1.01, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-c4024f1be200", "assessment_type": "RdSAP", "completion_date": "2025-11-14", "inspection_date": "2025-11-05", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 118, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-11-14", "sap_energy_source": { "mains_gas": "Y", 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"room_height": { "value": 2.41, "quantity": "metres" }, "total_floor_area": { "value": 43.22, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 27.7, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 31.94, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 16.12, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1339, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.6, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 69, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1076, "currency": "GBP" }, "hot_water_cost_current": { "value": 281, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 93, 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5 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "NN15 5BT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-07-17 05:02:08", "door_count": 0, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { 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"wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.41, "floor_insulation": 1, "total_floor_area": 16.25, "floor_construction": 1, "heat_loss_perimeter": 12.63 } ], "wall_insulation_type": 4, "construction_age_band": "G", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm" } ], "low_energy_lighting": 7, "solar_water_heating": "N", "bedf_revision_number": 322, "habitable_room_count": 5, "heating_cost_current": { "value": 711, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.4, "energy_rating_average": 60, "energy_rating_current": 62, "lighting_cost_current": { "value": 103, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 591, "currency": "GBP" }, "hot_water_cost_current": { "value": 95, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 21, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3100 - \u00c2\u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 57, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3800 - \u00c2\u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 64 }, { "sequence": 3, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3130", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 66 }, { "sequence": 4, "typical_saving": { "value": 14, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3350 - \u00c2\u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 67 }, { "sequence": 5, "typical_saving": { "value": 27, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a34,000 - \u00c2\u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 69 }, { "sequence": 6, "typical_saving": { "value": 219, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a39,000 - \u00c2\u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.5, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 53, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 37, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 65, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 68, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2254, "impact_of_loft_insulation": -705, "space_heating_existing_dwelling": 12185 }, "seller_commission_report": "Y", "energy_consumption_current": 223, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "9.0.2", "energy_consumption_potential": 120, "environmental_impact_current": 59, "fixed_lighting_outlets_count": 28, "current_energy_efficiency_band": "D", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 43, "low_energy_fixed_lighting_outlets_count": 2 } }, "NP46TQ": { "cert-5c1e59fe3355": { "uprn": 100100793772, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Cavity wall, filled cavity and external insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Below average lighting 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1.27, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1.22, "window_height": 0.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 0.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "WLS", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-587aa0dc7335", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-06-01", "inspection_date": "2026-06-01", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 4, "flat_location": 0, "heat_loss_corridor": 3, "unheated_corridor_length": 3.32 }, "total_floor_area": 50, "transaction_type": 14, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 3, "registration_date": "2026-06-01", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 400, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.34, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 50.33, "quantity": "square metres" }, "party_wall_length": { "value": 12.43, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 14.31, "quantity": "metres" } } ], "wall_insulation_type": 6, "construction_age_band": "E", "sap_alternative_wall_1": { "wall_area": 7.7688, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 300, "wall_construction": 4, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 419, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.4, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 51, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 372, "currency": "GBP" }, "hot_water_cost_current": { "value": 190, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 47, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 1.2, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 51, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 191, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2153.18, "space_heating_existing_dwelling": 3198.65 }, "draughtproofed_door_count": 1, "energy_consumption_current": 151, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 136, "environmental_impact_current": 82, "cfl_fixed_lighting_bulbs_count": 5, "current_energy_efficiency_band": "C", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 27, "incandescent_fixed_lighting_bulbs_count": 1 }, "cert-d126b4c2a3cd": { "uprn": 100100793774, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Cavity wall, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "NP4 6TQ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-11-14 08:09:21", "door_count": 1, "region_code": 12, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17959 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": 12, "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 1.27, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 2.52, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 2.05, "window_height": 0.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.27, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.28, "window_height": 0.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.04, "window_height": 0.3, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.05, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "WLS", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-5aaeeb968ff0", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-11-14", "inspection_date": "2025-11-13", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 4, "flat_location": 1, "heat_loss_corridor": 2, "unheated_corridor_length": 5.38 }, "total_floor_area": 52, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 3, "registration_date": "2025-11-14", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 420, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "total_floor_area": { "value": 52.29, "quantity": "square metres" }, "party_wall_length": { "value": 9.47, "quantity": "metres" }, "heat_loss_perimeter": { "value": 36.52, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "D", "sap_alternative_wall_1": { "wall_area": 12.6968, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 130, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "50mm" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 475, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 36, "currency": "GBP" }, 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"cert-7ecc1d2436d9": { "uprn": 422000120297, "roofs": [ { "description": "Pitched, no insulation", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": "ND", "windows": [ { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Low energy lighting in 50% of fixed outlets", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "OL8 1TT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, 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"floor_construction": 1, "heat_loss_perimeter": 8.08 }, { "floor": 1, "room_height": 2.85, "total_floor_area": 31.31, "heat_loss_perimeter": 8.08 } ], "wall_insulation_type": 4, "construction_age_band": "B", "wall_thickness_measured": "Y", "roof_insulation_location": 5, "roof_insulation_thickness": "NI" } ], "low_energy_lighting": 50, "solar_transmittance": 0.76, "solar_water_heating": "N", "windows_data_source": 2, "bedf_revision_number": 366, "habitable_room_count": 3, "heating_cost_current": { "value": 626, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 61, "lighting_cost_current": { "value": 61, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 348, "currency": "GBP" }, "hot_water_cost_current": { "value": 100, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 70, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 141.14, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 68 }, { "sequence": 2, "typical_saving": { "value": 77.51, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 23.9, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, 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"currency": "GBP" }, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 89, "environmental_impact_rating": 91 }, { "sequence": 8, "typical_saving": { "value": 20.7, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a34,000", "improvement_type": "V", "improvement_details": { "improvement_number": 44 }, "improvement_category": 5, "energy_performance_rating": 90, "environmental_impact_rating": 92 } ], "co2_emissions_potential": 0.6, "energy_rating_potential": 90, "lighting_cost_potential": { "value": 41, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 35.2, "currency": "GBP" }, "improvement_type": "Z1", "improvement_details": { "improvement_number": 51 }, "improvement_category": 6, "energy_performance_rating": 77, "environmental_impact_rating": 78 } ], "hot_water_cost_potential": { "value": 64, 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"environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "windows": [ { "description": "Single glazeddouble glazing", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "lighting": { "description": "Low energy lighting in 30% of fixed outlets", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "OL8 1TT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2013-10-09 00:14:25.000000", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "wwhrs": { "rooms_with_bath_and_or_shower": 0, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "cylinder_size": 1, "water_heating_code": 901, 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"floor": 1, "room_height": 2.63, "total_floor_area": 31.55, "heat_loss_perimeter": 15.89 } ], "wall_insulation_type": 4, "construction_age_band": "B", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": 2.52, "floor_insulation": 1, "total_floor_area": 8.59, "floor_construction": 0, "heat_loss_perimeter": 11.02 } ], "wall_insulation_type": 4, "construction_age_band": "J", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "NI" } ], "low_energy_lighting": 17, "solar_water_heating": "N", "bedf_revision_number": 341, "habitable_room_count": 4, "heating_cost_current": { "value": 695, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.9, "energy_rating_average": 60, "energy_rating_current": 58, "lighting_cost_current": { "value": 79, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 569, "currency": "GBP" }, "hot_water_cost_current": { "value": 86, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 106.43, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 31.21, "currency": "GBP" }, "indicative_cost": "\u00a325", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 63 }, { "sequence": 3, "typical_saving": { "value": 23.81, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 64 }, { "sequence": 4, "typical_saving": { "value": 24.64, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 66 }, { "sequence": 5, "typical_saving": { "value": 223.98, "currency": "GBP" }, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 76 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 43, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 20.95, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 64, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 62, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2026, "impact_of_loft_insulation": -2445, "impact_of_cavity_insulation": -2992, "space_heating_existing_dwelling": 13599 }, "seller_commission_report": "Y", "energy_consumption_current": 280, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "1.4.1.0", "energy_consumption_potential": 143, "environmental_impact_current": 54, "fixed_lighting_outlets_count": 6, "current_energy_efficiency_band": "D", "environmental_impact_potential": 76, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 54, "low_energy_fixed_lighting_outlets_count": 1 } }, "PE78JN": { "cert-1cf072cc6780": { "uprn": 10008067450, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "PE7 8JN", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-03-09 16:11:50", "door_count": 2, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16399 } ], 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"permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.55, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.55, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", 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"pvc_frame": "true", "glazing_gap": "16+", "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 1.85, "window_height": 1.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-81b07b1b4332", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-03-09", "inspection_date": "2026-03-09", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 118, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2026-03-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 310, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.42, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 59.59, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 31.86, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 58.75, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 30.66, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 776, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.8, "energy_rating_average": 60, "energy_rating_current": 76, "lighting_cost_current": { "value": 72, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 776, "currency": "GBP" }, "hot_water_cost_current": { "value": 235, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 241, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.7, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 72, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 235, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3017.46, "space_heating_existing_dwelling": 8466.59 }, "draughtproofed_door_count": 2, "energy_consumption_current": 131, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0334", "energy_consumption_potential": 120, "environmental_impact_current": 76, "current_energy_efficiency_band": "C", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 24, "low_energy_fixed_lighting_bulbs_count": 33, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-d42f6792e355": { "uprn": 10008067449, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, { "description": "Roof room(s), insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "PE7 8JN", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2025-06-18 10:09:05", "door_count": 2, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 6, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 1, "main_heating_data_source": 1, "main_heating_index_number": 16400 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 1.15, "window_height": 0.99, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 0.47, "window_height": 2.07, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.47, "window_height": 2.07, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 1.23, "window_height": 2.07, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 2, "window_type": 1, "glazing_type": 2, "window_width": 1.14, "window_height": 1.12, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 1.76, "window_height": 2.06, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.56, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.55, "window_height": 0.99, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 1.14, "window_height": 1.12, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 1.13, "window_height": 1.12, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.57, "window_height": 0.68, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 1.14, "window_height": 1.12, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.87, "window_height": 0.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.87, "window_height": 0.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 2, "glazing_type": 2, "window_width": 0.49, "window_height": 0.94, "draught_proofed": "true", "window_location": 0, "window_wall_type": 4, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 2, "glazing_type": 2, "window_width": 0.49, "window_height": 0.94, "draught_proofed": "true", "window_location": 0, "window_wall_type": 4, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 0.88, "window_height": 0.84, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.0", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-14346cb87f2e", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-06-18", "inspection_date": "2025-06-18", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 122, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2025-06-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { 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"total_floor_area": { "value": 3.6, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.85, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 94, "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 478, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.5, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 55, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 416, "currency": "GBP" }, "hot_water_cost_current": { "value": 89, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 22, "currency": "GBP" }, "indicative_cost": 350, "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 71 }, { "sequence": 2, "typical_saving": { "value": 40, "currency": "GBP" }, "indicative_cost": "1,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 75 }, { "sequence": 4, "typical_saving": { "value": 313, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 86, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 0.9, "energy_rating_potential": 86, "lighting_cost_potential": { "value": 55, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 54, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1855, "impact_of_loft_insulation": -476, "impact_of_cavity_insulation": -841, "space_heating_existing_dwelling": 7467 }, "energy_consumption_current": 179, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "1.0.x", "energy_consumption_potential": 64, "environmental_impact_current": 69, "fixed_lighting_outlets_count": 17, "current_energy_efficiency_band": "C", "environmental_impact_potential": 85, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 32, "low_energy_fixed_lighting_outlets_count": 16 }, "cert-67098fe64d9a": { "uprn": 100061752565, "roofs": [ { "description": { "value": "Pitched, loft insulation", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Flat, limited insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": { "value": "Timber frame, with additional insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, insulated", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "high_exposure": "true", "cavity_fill_recommended": "true" }, "lighting": { "description": { "value": "Low energy lighting in 28% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "PO20 1PE", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": 1, "created_at": "2015-07-28 19:05:48.000000", "door_count": 1, "glazed_area": 1, "region_code": 14, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 1, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 1316 } ], "immersion_heating_type": "NA", "secondary_heating_type": 604, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 38 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-e8da8cc29132", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2015-07-28", "inspection_date": "2015-07-28", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 98, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2015-07-28", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { 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"roof_insulation_location": 2, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 150, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 5, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.123, "quantity": "metres" }, "floor_insulation": 2, "total_floor_area": { "value": 6.04, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 8.201, "quantity": "metres" } } ], "wall_insulation_type": 3, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "100mm", "flat_roof_insulation_thickness": "AB" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.389, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.43, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 9.985, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 28, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1149, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.6, "energy_rating_average": 60, "energy_rating_current": 44, "lighting_cost_current": { "value": 104, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 517, "currency": "GBP" }, "hot_water_cost_current": { "value": 190, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 118, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 48, "environmental_impact_rating": 40 }, { "sequence": 2, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a3850 - \u00a31,500", "improvement_type": "A2", "improvement_details": { "improvement_number": 45 }, "improvement_category": 5, "energy_performance_rating": 50, "environmental_impact_rating": 42 }, { "sequence": 3, "typical_saving": { "value": 299, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 55 }, { "sequence": 4, "typical_saving": { "value": 46, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 57 }, { "sequence": 5, "typical_saving": { "value": 36, "currency": "GBP" }, "indicative_cost": "\u00a365", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 58 }, { "sequence": 6, "typical_saving": { "value": 189, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { 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"rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 1, "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2103, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 119, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "secondary_heating_type": 602, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "End-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-9000456f0824", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2015-07-08", "inspection_date": "2015-07-07", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 76, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2015-07-08", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.39, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 37.37, "quantity": "square 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], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-5ada0d5f3aac", "assessment_type": "RdSAP", "completion_date": "2026-06-21", "inspection_date": "2026-06-19", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 215, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 7, "registration_date": "2026-06-21", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 4, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 320, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": 48.64, "room_in_roof_type_1": { "gable_wall_type_1": 0, "gable_wall_type_2": 0, "gable_wall_length_1": 10.81, "gable_wall_length_2": 10.81 }, "construction_age_band": "J" }, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.49, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 76.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 38.58, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 76.87, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 31.39, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 320, "floor_heat_loss": 2, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.44, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 7.19, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 1200, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.9, "energy_rating_average": 60, "energy_rating_current": 79, "lighting_cost_current": { "value": 123, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1200, "currency": "GBP" }, "hot_water_cost_current": { "value": 276, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 260, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 3.8, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 123, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 276, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3196.6, "space_heating_existing_dwelling": 12730.28 }, "draughtproofed_door_count": 1, "energy_consumption_current": 99, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 93, "environmental_impact_current": 76, "current_energy_efficiency_band": "C", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 18, "low_energy_fixed_lighting_bulbs_count": 16, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-937e4fe7b4cd": { "uprn": 100021349998, "roofs": [ { "description": "Pitched, 100 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Flat, insulated", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "System built, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2026-03-16 06:05:56", "door_count": 2, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16843 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 0.43, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.52, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.65, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 0.52, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 2.34, "window_height": 1.16, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.18, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.78, "window_height": 1.15, "draught_proofed": "true", "window_location": 0, 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"glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.58, "window_height": 1.21, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1.31, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.78, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-df849854c7c7", "assessment_type": "RdSAP", "completion_date": "2026-03-16", "inspection_date": "2026-03-12", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 86, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-03-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 1, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.48, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 36.61, "quantity": "square metres" }, "party_wall_length": { "value": 7.2, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.35, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.41, "quantity": "metres" }, "total_floor_area": { "value": 37.3, "quantity": "square metres" }, "party_wall_length": { "value": 7.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 19.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 8, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.48, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.3, "quantity": "square metres" }, "party_wall_length": { "value": 2.89, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 6.81, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "G", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1187, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.0, "energy_rating_average": 60, "energy_rating_current": 61, "lighting_cost_current": { "value": 64, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 776, "currency": "GBP" }, "hot_water_cost_current": { "value": 179, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 337, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": { "value": 74, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 76 }, { "sequence": 3, "typical_saving": { "value": 266, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 64, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 179, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2400.94, "space_heating_existing_dwelling": 10199.25 }, "draughtproofed_door_count": 2, "energy_consumption_current": 197, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0334", "energy_consumption_potential": 121, "environmental_impact_current": 65, "current_energy_efficiency_band": "D", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 34, "low_energy_fixed_lighting_bulbs_count": 11, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-57f005f71767": { "uprn": 100021350012, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Flat, insulated", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Solid brick, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-02-02 18:53:57", "door_count": 1, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 3, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17777 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 2.05, "window_height": 1.48, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.46, "window_height": 1.16, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.73, "window_height": 2.07, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.5, "window_height": 1.14, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.83, "window_height": 2.01, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.6, "window_height": 1.15, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.84, "window_height": 2, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.19, "window_height": 0.92, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 0.78, "window_height": 0.81, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.52, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.52, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.42, "window_height": 1.09, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.42, "window_height": 1.09, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.49, "window_height": 1.18, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.51, "window_height": 1.17, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-a40a93ad0402", "assessment_type": "RdSAP", "completion_date": "2026-02-02", "inspection_date": "2026-02-02", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 113, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2026-02-02", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.66, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.8, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 19.24, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.67, "quantity": "metres" }, "total_floor_area": { "value": 39.8, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.17, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.59, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 9.63, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.38, "quantity": "metres" }, "total_floor_area": { "value": 11.59, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 9.63, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "G", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.44, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.71, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.03, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1756, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.8, "energy_rating_average": 60, "energy_rating_current": 53, "lighting_cost_current": { "value": 80, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 992, "currency": "GBP" }, "hot_water_cost_current": { "value": 259, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 569, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 128, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 70 }, { "sequence": 3, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 71 }, { "sequence": 4, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 } ], "co2_emissions_potential": 2.8, "energy_rating_potential": 73, "lighting_cost_potential": { "value": 80, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 261, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3353.89, "space_heating_existing_dwelling": 16919.43 }, "draughtproofed_door_count": 1, "energy_consumption_current": 240, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 136, "environmental_impact_current": 54, "current_energy_efficiency_band": "E", "environmental_impact_potential": 72, "led_fixed_lighting_bulbs_count": 21, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 42, "incandescent_fixed_lighting_bulbs_count": 4 }, "cert-f3781e647df4": { "uprn": 100021349998, "roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Flat, no insulation", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2026-01-20 16:03:17", "door_count": 2, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2113, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10327 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 0.51, "window_height": 2.01, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 2.31, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 2.31, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.69, "window_height": 1.16, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 2.37, "window_height": 1.17, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.14, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.63, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.21, "window_height": 1.31, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.77, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-df849854c7c7", "assessment_type": "RdSAP", "completion_date": "2026-01-20", "inspection_date": "2026-01-20", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 102, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-01-20", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.42, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 44.45, "quantity": "square metres" }, "party_wall_length": { "value": 7.51, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 14.91, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 44.45, "quantity": "square metres" }, "party_wall_length": { "value": 7.51, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.31, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 12.91, "quantity": "square metres" }, "party_wall_length": { "value": 2.89, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.29, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1115, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.8, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 79, "currency": "GBP" }, "main_heating_controls": [ { "description": "Room thermostat and TRVs", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 705, "currency": "GBP" }, "hot_water_cost_current": { "value": 201, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 91, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 69, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A2", "improvement_details": { "improvement_number": 45 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 63 }, { "sequence": 2, "typical_saving": { "value": 281, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 59, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 74 }, { "sequence": 4, "typical_saving": { "value": 234, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 2.4, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 79, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 202, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2597.4, "space_heating_existing_dwelling": 13020.95 }, "draughtproofed_door_count": 1, "energy_consumption_current": 204, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 123, "environmental_impact_current": 60, "current_energy_efficiency_band": "D", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 37, "low_energy_fixed_lighting_bulbs_count": 9, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-f934b8ba9c0c": { "uprn": 100021349990, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Flat, insulated", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Roof room(s), limited insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-10-22 08:41:41", "door_count": 0, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 2, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17974 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "false", "glazing_gap": 12, "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 2.3, "window_height": 1.47, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 2.3, "window_height": 1.47, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 3, "window_type": 1, "glazing_type": 3, 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"environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-ae5a30389eca", "assessment_type": "RdSAP", "completion_date": "2025-10-22", "inspection_date": "2025-09-21", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 108, "transaction_type": 1, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 5, "registration_date": "2025-10-22", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main 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"construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.19, "quantity": "square metres" }, "party_wall_length": { "value": 1.34, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 6.711, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "G", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 13.53, "quantity": "square metres" }, "party_wall_length": { "value": 2.52, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.41, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "G", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1006, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.4, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 65, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "blocked_chimneys_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 871, "currency": "GBP" }, "hot_water_cost_current": { "value": 193, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 82, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 2, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 70 }, { "sequence": 3, "typical_saving": { "value": 235, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 71 } ], "co2_emissions_potential": 2.9, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 65, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 193, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2513.75, "space_heating_existing_dwelling": 11633.9 }, "draughtproofed_door_count": 0, "energy_consumption_current": 174, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0316", "energy_consumption_potential": 140, "environmental_impact_current": 65, "current_energy_efficiency_band": "C", "environmental_impact_potential": 71, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 32, "low_energy_fixed_lighting_bulbs_count": 26, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-4dcfb6247bac": { "uprn": 100021349986, "roofs": [ { "description": { "value": "Pitched, 150 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": { "value": "Flat, limited insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Cavity wall, filled cavity", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": { "value": "Low energy lighting in 54% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "RM13 9JU", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2024-08-03 17:12:07", "door_count": 2, "glazed_area": 1, "region_code": 2, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 15, 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"square metres" }, "party_wall_length": { "value": 7.47, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 12.94, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 39.14, "quantity": "square metres" }, "party_wall_length": { "value": 7.47, "quantity": "metres" }, "heat_loss_perimeter": { "value": 17.95, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.43, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 19.93, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 10.17, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 54, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1075, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.1, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 170, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 896, "currency": "GBP" }, "hot_water_cost_current": { "value": 160, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 103, "currency": "GBP" }, "indicative_cost": "\u00a3850 - \u00a31,500", "improvement_type": "A2", "improvement_details": { "improvement_number": 45 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 59 }, { "sequence": 2, "typical_saving": { "value": 84, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 62 }, { "sequence": 3, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00a330", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 63 }, { "sequence": 4, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 65 }, { "sequence": 5, "typical_saving": { "value": 526, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 73 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 116, "currency": "GBP" }, "schema_version_original": "LIG-19.0", "hot_water_cost_potential": { "value": 102, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1937, "impact_of_loft_insulation": 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"environmental_efficiency_rating": 5 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in 70% of fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2023-06-26 19:53:59", "door_count": 2, "glazed_area": 1, "region_code": 2, "report_type": 2, "sap_heating": { "cylinder_size": 4, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": 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], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in 83% of fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2021-11-26 17:08:25.149864", "door_count": 1, "glazed_area": 1, "region_code": 2, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { 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"floor_construction": 1, "heat_loss_perimeter": { "value": 23.29, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 340, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.03, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 16.59, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "H", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 83, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 824, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.0, "energy_rating_average": 60, "energy_rating_current": 62, "lighting_cost_current": { "value": 103, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 442, "currency": "GBP" }, "hot_water_cost_current": { "value": 100, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 71, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 71 }, { "sequence": 3, "typical_saving": { "value": 62, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 74 }, { "sequence": 4, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { 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0, "environmental_efficiency_rating": 0 }, { "description": "Suspended, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2021-06-18 19:46:46.770665", "door_count": 0, "glazed_area": 1, "region_code": 2, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 2, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2110, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17562 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Detached bungalow", "language_code": 1, "property_type": 1, "address_line_1": "addr-9cf2a9b16406", "assessment_type": "RdSAP", "completion_date": "2021-06-18", "inspection_date": "2021-06-18", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 147, 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"metres" }, "floor_construction": 3, "heat_loss_perimeter": { "value": 22.03, "quantity": "metres" } } ], "wall_insulation_type": 3, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 370, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 51.81, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 3, "heat_loss_perimeter": { "value": 26.17, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 529, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.1, "energy_rating_average": 60, "energy_rating_current": 78, "lighting_cost_current": { "value": 97, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 491, "currency": "GBP" }, "hot_water_cost_current": { "value": 94, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 38, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 77 }, { "sequence": 2, "typical_saving": { "value": 347, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 86, "environmental_impact_rating": 83 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 86, "lighting_cost_potential": { "value": 97, "currency": "GBP" }, "schema_version_original": "20.0.0", "hot_water_cost_potential": { "value": 94, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2151, "space_heating_existing_dwelling": 9395 }, "energy_consumption_current": 121, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, 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"status": "entered", "tenure": 1, "window": { "description": "Mostly double glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in 40% of fixed outlets", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system, no cylinder thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": 1, "created_at": "2021-04-21 16:11:39", "door_count": 3, "glazed_area": 1, "region_code": 2, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 1847 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Detached bungalow", "language_code": 1, "property_type": 1, "address_line_1": "addr-6836c91a601f", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2021-04-21", "inspection_date": "2021-04-21", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 119, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2021-04-21", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 240, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 80.14, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 30.01, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.2, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 21.61, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "low_energy_lighting": 40, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1056, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.8, "energy_rating_average": 60, "energy_rating_current": 50, "lighting_cost_current": { "value": 138, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 481, "currency": "GBP" }, "hot_water_cost_current": { "value": 202, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 151, "currency": "GBP" }, "indicative_cost": "\u00a3850 - \u00a31,500", "improvement_type": "A2", "improvement_details": { 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"main_heating_fraction": 1, "main_heating_data_source": 1 } ], "cylinder_insulation_type": 2, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 9.91, "schema_type": "SAP-Schema-16.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 3 } ], "dwelling_type": "Detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-3b621fbf5447", "schema_version": "LIG-16.0", "assessment_type": "RdSAP", "completion_date": "2012-09-24", "inspection_date": "2012-09-24", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 189, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 8, "registration_date": "2012-09-24", "restricted_access": 0, "sap_energy_source": { "main_gas": "Y", "meter_type": 1, "photovoltaic_supply": { "percent_roof_area": 0 }, "wind_turbines_count": 0, 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"improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 50, "environmental_impact_rating": 43 }, { "sequence": 2, "typical_saving": { "value": 279, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 50 }, { "sequence": 3, "typical_saving": { "value": 109, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W", "improvement_details": { "improvement_number": 47 }, "improvement_category": 5, "energy_performance_rating": 60, "environmental_impact_rating": 53 }, { "sequence": 4, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a325", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 61, 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"floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 825, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.7, "energy_rating_average": 60, "energy_rating_current": 62, "lighting_cost_current": { "value": 39, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 707, "currency": "GBP" }, "hot_water_cost_current": { "value": 262, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 118, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, 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"description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2026-03-06 15:56:54", "door_count": 1, "region_code": 3, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15706 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.62, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.79, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 2.36, "window_height": 1.34, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.73, "window_height": 1.04, 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"sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_diverter": "false", "pv_connection": 0, "pv_battery_count": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "true", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true", "is_hydro_output_connected_to_dwelling_meter": "false" }, "secondary_heating": { "description": "Room heaters, dual fuel (mineral and wood)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 0, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.46, 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"roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Pitched, 300 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, { "description": "Pitched, insulated", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Suspended, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2026-04-27 19:43:22", "door_count": 1, "region_code": 19, "report_type": 2, "sap_heating": { "number_baths": 2, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 9, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2110, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17562 } ], "immersion_heating_type": "NA", "secondary_heating_type": 633, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 0.46, "window_height": 1.61, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 0.46, "window_height": 1.61, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.47, "window_height": 1.61, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 0.85, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.63, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.63, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.11, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 0.56, "window_height": 0.92, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.66, "window_height": 0.92, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.66, "window_height": 0.92, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.78, "window_height": 1.14, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", 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"permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 2, "glazing_type": 13, "window_width": 1, "window_height": 1.64, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-843068c725b2", "assessment_type": "RdSAP", "completion_date": "2026-04-27", "inspection_date": "2026-04-24", "extensions_count": 3, "measurement_type": 1, "total_floor_area": 145, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 9, "registration_date": "2026-04-27", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, dual fuel (mineral and wood)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 330, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.14, "quantity": "square metres" }, "party_wall_length": { "value": 6.31, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 3.14, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.57, "quantity": "metres" }, "total_floor_area": { "value": 34.14, "quantity": "square metres" }, "party_wall_length": { "value": 6.31, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.82, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 370, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.43, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 22.65, "quantity": "square 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"total_floor_area": { "value": 30.24, "quantity": "square metres" }, "party_wall_length": { "value": 3.36, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.36, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" }, { "identifier": "Extension 3", "wall_dry_lined": "N", "wall_thickness": 330, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 4, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 0.83, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 2.65, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 9, "heating_cost_current": { "value": 1105, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 71, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1105, "currency": "GBP" }, "hot_water_cost_current": { "value": 220, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 228, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 3.1, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 71, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 220, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2638.43, "space_heating_existing_dwelling": 10827.93 }, "draughtproofed_door_count": 1, "energy_consumption_current": 127, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 119, "environmental_impact_current": 77, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 43, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 22, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-c1a755867461": { "uprn": 100010145449, "roofs": [ { "description": "Pitched, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Suspended, limited insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-02-21 18:34:49", "door_count": 1, "glazed_area": 1, "glazing_gap": 12, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17513 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-ccb5a3fd0392", "assessment_type": "RdSAP", "completion_date": "2025-02-21", "inspection_date": "2025-02-21", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 93, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "pvc_window_frames": "true", "registration_date": "2025-02-21", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 320, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 43.11, "quantity": "square metres" }, "party_wall_length": { "value": 8.15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 17.52, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.36, "quantity": "metres" }, "total_floor_area": { "value": 43.17, "quantity": "square metres" }, "party_wall_length": { "value": 8.1, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.76, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 6.56, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 8.95, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1203, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.7, "energy_rating_average": 60, "energy_rating_current": 62, "lighting_cost_current": { "value": 94, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 992, "currency": "GBP" }, "hot_water_cost_current": { "value": 122, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 148, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 60 }, { "sequence": 2, "typical_saving": { "value": 63, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 62 }, { "sequence": 3, "typical_saving": { "value": 42, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 64 }, { "sequence": 4, "typical_saving": { "value": 405, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 73 } ], "co2_emissions_potential": 2.9, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 94, "currency": "GBP" }, "schema_version_original": "20.0.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 85, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 68, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 81, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1911, "impact_of_loft_insulation": -3839, "impact_of_cavity_insulation": -2569, "space_heating_existing_dwelling": 16613 }, "energy_consumption_current": 287, "has_fixed_air_conditioning": "false", 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"energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in 67% of fixed outlets", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-01-23 19:11:44", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10244 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-a3f79f2cb952", "assessment_type": "RdSAP", "completion_date": "2025-01-23", "inspection_date": "2025-01-23", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 69, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2025-01-23", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 35.68, "quantity": "square metres" }, "party_wall_length": { "value": 6.33, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 18.1, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.59, "quantity": "metres" }, "total_floor_area": { "value": 33.54, "quantity": "square metres" }, "party_wall_length": { "value": 6.33, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.9, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 67, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 680, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.8, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 99, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 625, "currency": "GBP" }, "hot_water_cost_current": { "value": 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"immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-65cf45ec2ec6", "assessment_type": "RdSAP", "completion_date": "2023-10-03", "inspection_date": "2023-09-26", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 69, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2023-10-03", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.43, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.68, "quantity": "square metres" }, "party_wall_length": { "value": 6.4, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 18, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.56, "quantity": "metres" }, "total_floor_area": { "value": 33.92, "quantity": "square metres" }, "party_wall_length": { "value": 6.4, "quantity": "metres" }, "heat_loss_perimeter": { "value": 17, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 83, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1432, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 63, "lighting_cost_current": { "value": 131, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1024, "currency": "GBP" }, "hot_water_cost_current": { "value": 289, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 134, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 62 }, { "sequence": 2, "typical_saving": { "value": 89, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 64 }, { "sequence": 3, "typical_saving": { "value": 236, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 70 }, { "sequence": 4, "typical_saving": { "value": 79, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 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"improvement_category": 6, "energy_performance_rating": 71, "environmental_impact_rating": 66 } ], "hot_water_cost_potential": { "value": 159, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1984, "impact_of_loft_insulation": -363, "space_heating_existing_dwelling": 8464 }, "energy_consumption_current": 293, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.13r0001", "energy_consumption_potential": 125, "environmental_impact_current": 58, "fixed_lighting_outlets_count": 12, "current_energy_efficiency_band": "D", "environmental_impact_potential": 82, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 52, "low_energy_fixed_lighting_outlets_count": 10 }, "cert-2bab2887236e": { "uprn": 100010145469, "roofs": [ { "description": "Pitched, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Single glazed", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "No low energy lighting", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 2PW", "hot_water": { "description": "Electric immersion, standard tariff", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 2 }, "post_town": "", "built_form": 3, "created_at": "2023-07-03 11:37:55", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 903, 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"address_line_1": "addr-a1ab08269834", "assessment_type": "RdSAP", "completion_date": "2023-07-03", "inspection_date": "2023-06-13", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 80, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 1, "registration_date": "2023-07-03", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Portable electric heaters (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 40.1, "quantity": "square metres" }, "party_wall_length": { "value": 5, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 21.04, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.25, "quantity": "metres" }, "total_floor_area": { "value": 40.1, "quantity": "square metres" }, "party_wall_length": { "value": 5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.04, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 3496, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 8.5, "energy_rating_average": 60, "energy_rating_current": 24, "lighting_cost_current": { "value": 255, "currency": "GBP" }, "main_heating_controls": [ { "description": "No time or thermostatic control of room temperature", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "multiple_glazing_type": "ND", "open_fireplaces_count": 1, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1374, "currency": "GBP" }, "hot_water_cost_current": { "value": 868, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 472, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 30, "environmental_impact_rating": 31 }, { "sequence": 2, "typical_saving": { "value": 195, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 32, "environmental_impact_rating": 33 }, { "sequence": 3, "typical_saving": { "value": 113, "currency": "GBP" }, "indicative_cost": "\u00a315 - \u00a330", "improvement_type": "C", "improvement_details": { "improvement_number": 2 }, "improvement_category": 5, "energy_performance_rating": 33, "environmental_impact_rating": 34 }, { "sequence": 4, "typical_saving": { "value": 82, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 35, "environmental_impact_rating": 35 }, { "sequence": 5, "typical_saving": { "value": 100, "currency": "GBP" }, "indicative_cost": "\u00a350", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 36, "environmental_impact_rating": 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"environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2023-06-20 07:20:29", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 33, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": 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"2023-06-20", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, coal", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.29, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 17.28, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 16.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.31, "quantity": "metres" }, "total_floor_area": { "value": 17.28, "quantity": 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"heat_loss_perimeter": { "value": 12.26, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.32, "quantity": "metres" }, "total_floor_area": { "value": 31.92, "quantity": "square metres" }, "party_wall_length": { "value": 9.32, "quantity": "metres" }, "heat_loss_perimeter": { "value": 13.7, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.64, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { 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"main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16839 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.93, "schema_type": "RdSAP-Schema-18.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "end-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-f8ea693a4125", "assessment_type": "RdSAP", "completion_date": "2018-11-06", "inspection_date": "2018-11-06", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 83, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "pvc_window_frames": "true", "registration_date": "2018-11-06", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.31, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 16.82, "quantity": "square metres" }, "party_wall_length": { "value": 5.24, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.48, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.38, "quantity": "metres" }, "total_floor_area": { "value": 33.47, "quantity": "square metres" }, "party_wall_length": { "value": 5.26, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.66, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.37, "quantity": "metres" }, "total_floor_area": { "value": 33.12, "quantity": "square metres" }, "party_wall_length": { "value": 5.25, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.63, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 70, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 615, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 67, "lighting_cost_current": { "value": 77, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 584, "currency": "GBP" }, "hot_water_cost_current": { "value": 84, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 16, "currency": "GBP" }, "indicative_cost": "\u00a315", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 64 }, { "sequence": 2, "typical_saving": { "value": 34, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 67 }, { "sequence": 4, "typical_saving": { "value": 277, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 60, "currency": "GBP" }, "schema_version_original": "LIG-18.0", "hot_water_cost_potential": { "value": 56, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1896, "impact_of_loft_insulation": -354, "space_heating_existing_dwelling": 10703 }, "energy_consumption_current": 240, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.1.0.0", "energy_consumption_potential": 151, "environmental_impact_current": 63, "fixed_lighting_outlets_count": 10, "windows_transmission_details": { "u_value": 2.8, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 42, "low_energy_fixed_lighting_outlets_count": 7 }, "cert-419198b42626": { "uprn": 100010145459, "roofs": [ { "description": { "value": "Pitched, 150 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "To unheated space, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Some double glazing", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": { "value": "Low energy lighting in 18% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2017-03-01 13:07:25", "door_count": 3, "glazed_area": 1, "glazing_gap": 12, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16839 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "end-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-eec956a8094c", "assessment_type": "RdSAP", "completion_date": "2017-03-01", "inspection_date": "2017-02-28", "extensions_count": 1, "measurement_type": 2, "total_floor_area": 91, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2017-03-01", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.33, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 24.52, "quantity": "square metres" }, "party_wall_length": { "value": 5.65, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 14.33, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.34, "quantity": "metres" }, "total_floor_area": { "value": 24.52, "quantity": "square metres" }, "party_wall_length": { "value": 5.65, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.33, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.35, "quantity": "metres" }, "total_floor_area": { "value": 42.71, "quantity": "square metres" }, "party_wall_length": { "value": 5.65, "quantity": "metres" }, "heat_loss_perimeter": { "value": 20.77, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "E", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 2, "roof_construction": 7, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 18.19, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 3, "heat_loss_perimeter": { "value": 12.09, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 18, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1085, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.9, "energy_rating_average": 60, "energy_rating_current": 52, "lighting_cost_current": { "value": 108, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 628, "currency": "GBP" }, "hot_water_cost_current": { "value": 92, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 20, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 287, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 56 }, { "sequence": 2, "typical_saving": { "value": 33, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 58 }, { "sequence": 3, "typical_saving": { "value": 27, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 59 }, { "sequence": 4, "typical_saving": { "value": 18, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, 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}, "indicative_cost": "\u00a33,300 - \u00a36,500", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 9, "typical_saving": { "value": 260, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 59, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 56, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 64, "environmental_impact_rating": 59 } ], "hot_water_cost_potential": { "value": 60, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1943, "impact_of_loft_insulation": -200, "impact_of_cavity_insulation": -5257, "space_heating_existing_dwelling": 17564 }, "energy_consumption_current": 366, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 29, "calculation_software_version": "2.0.0.0", "energy_consumption_potential": 143, "environmental_impact_current": 45, "fixed_lighting_outlets_count": 17, "windows_transmission_details": { "u_value": 2.8, "data_source": 2, "solar_transmittance": 0.76 }, "current_energy_efficiency_band": "E", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 65, "low_energy_fixed_lighting_outlets_count": 3 }, "cert-25479714673e": { "uprn": 100010145446, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Flat, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in 75% of fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": 2, "created_at": "2017-02-01 17:34:28.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": 6, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 830 } ], "immersion_heating_type": "NA", "secondary_heating_type": 601, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-230b9129fb74", "assessment_type": "RdSAP", "completion_date": "2017-02-01", "inspection_date": "2017-01-31", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 79, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2017-02-01", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, 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"main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16136 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-1e7e18a1b7bd", "assessment_type": "RdSAP", "completion_date": "2015-11-12", "inspection_date": "2015-11-12", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 80, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2015-11-12", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, electric", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.55, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.7, "quantity": "square metres" }, "party_wall_length": { "value": 6.36, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.53, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.55, "quantity": "metres" }, "total_floor_area": { "value": 33.7, "quantity": "square metres" }, "party_wall_length": { "value": 6.36, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.96, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.25, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.42, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 9.59, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 33, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 609, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 67, "lighting_cost_current": { "value": 87, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 580, "currency": "GBP" }, "hot_water_cost_current": { "value": 102, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 36, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 68 }, { "sequence": 2, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a330", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 69 }, { "sequence": 3, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 71 }, { "sequence": 4, "typical_saving": { "value": 252, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 80 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 52, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 70, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2081, "space_heating_existing_dwelling": 7949 }, "energy_consumption_current": 226, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "9.0.0", "energy_consumption_potential": 131, "environmental_impact_current": 66, "fixed_lighting_outlets_count": 9, "current_energy_efficiency_band": "D", "environmental_impact_potential": 80, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 40, "low_energy_fixed_lighting_outlets_count": 3 }, "cert-150e9e3bc6df": { "uprn": 100010145459, "roofs": [ { "description": { "value": "Pitched, 200 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "To unheated space, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Some double glazing", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 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"main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "secondary_heating_type": 603, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "End-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-eec956a8094c", "assessment_type": "RdSAP", "completion_date": "2015-11-04", "inspection_date": "2015-11-04", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 84, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 5, "pvc_window_frames": "true", "registration_date": "2015-11-04", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.7, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 17.26, "quantity": "square metres" }, "party_wall_length": { "value": 4.77, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.01, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.71, "quantity": "metres" }, "total_floor_area": { "value": 17.26, "quantity": "square metres" }, "party_wall_length": { "value": 4.77, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.24, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.54, "quantity": "metres" }, "total_floor_area": { "value": 17.26, "quantity": "square metres" }, "party_wall_length": { "value": 4.77, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.24, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 2, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.71, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 15.88, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 3, "heat_loss_perimeter": { "value": 11.43, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.54, "quantity": "metres" }, "total_floor_area": { "value": 15.88, "quantity": "square metres" }, "party_wall_length": 0, "heat_loss_perimeter": { "value": 11.43, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1046, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.7, "energy_rating_average": 60, "energy_rating_current": 50, "lighting_cost_current": { "value": 107, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 585, "currency": "GBP" }, "hot_water_cost_current": { "value": 113, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 20, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 282, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 61, "environmental_impact_rating": 55 }, { "sequence": 2, "typical_saving": { "value": 59, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 58 }, { "sequence": 3, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 59 }, { "sequence": 4, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00a355", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 5, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 63 }, { "sequence": 6, "typical_saving": { "value": 37, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 65 }, { "sequence": 7, "typical_saving": { "value": 71, "currency": "GBP" }, "indicative_cost": "\u00a33,300 - \u00a36,500", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 8, "typical_saving": { "value": 252, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.1, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 54, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 54, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 63, "environmental_impact_rating": 58 } ], "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2140, "impact_of_cavity_insulation": -5111, "space_heating_existing_dwelling": 16710 }, "energy_consumption_current": 387, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 15, "calculation_software_version": "1.0.x", "energy_consumption_potential": 142, "environmental_impact_current": 43, "fixed_lighting_outlets_count": 11, "current_energy_efficiency_band": "E", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 68, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-04d565e496b6": { "uprn": 100010145457, "roofs": [ { "description": { "value": "Pitched, 270 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, filled cavity", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "To unheated space, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Mostly double glazing", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2015-11-01 18:15:45.000000", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 9, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2111, "main_heating_category": 2, "main_heating_fraction": 1, "mcs_installed_heat_pump": "false", "central_heating_pump_age": 1, "main_heating_data_source": 1, "main_heating_index_number": 8587 } ], "immersion_heating_type": "NA", "secondary_heating_type": 633, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-15c434603a49", "assessment_type": "RdSAP", "completion_date": "2015-10-28", "inspection_date": "2015-10-28", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 83, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2015-10-28", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, dual fuel (mineral and wood)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.29, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 17.86, "quantity": "square metres" }, "party_wall_length": { "value": 4.7, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 12.3, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.34, "quantity": "metres" }, "total_floor_area": { "value": 17.86, "quantity": "square metres" }, "party_wall_length": { "value": 4.7, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.6, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.24, "quantity": "metres" }, "total_floor_area": { "value": 17.86, "quantity": "square metres" }, "party_wall_length": { "value": 4.7, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.6, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "floor_heat_loss": 2, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.34, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 14.57, "quantity": "square metres" }, "party_wall_length": { "value": 4.7, "quantity": "metres" }, "floor_construction": 3, "heat_loss_perimeter": { "value": 6.1, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.24, "quantity": "metres" }, "total_floor_area": { "value": 14.57, "quantity": "square metres" }, "party_wall_length": { "value": 4.7, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.1, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 627, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.6, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 107, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 497, "currency": "GBP" }, "hot_water_cost_current": { "value": 121, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 80, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 38, "currency": "GBP" }, "indicative_cost": "1,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 64 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 44, "currency": "GBP" }, "indicative_cost": 70, "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 67 }, { "sequence": 4, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": 450, "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 5, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "3,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 6, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 74 }, { "sequence": 7, "typical_saving": { "value": 252, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 85, "environmental_impact_rating": 83 } ], "co2_emissions_potential": 1.6, "energy_rating_potential": 85, "lighting_cost_potential": { "value": 53, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 54, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 72, "environmental_impact_rating": 92 }, { "sequence": 2, "typical_saving": { "value": 24, "currency": "GBP" }, "improvement_type": "Z1", "improvement_details": { "improvement_number": 51 }, "improvement_category": 6, "energy_performance_rating": 72, "environmental_impact_rating": 75 }, { "sequence": 3, "typical_saving": { "value": 58, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 74, "environmental_impact_rating": 69 } ], "hot_water_cost_potential": { "value": 72, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2133, "space_heating_existing_dwelling": 8435 }, "energy_consumption_current": 244, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 80, "calculation_software_version": "1.0.x", "energy_consumption_potential": 106, "environmental_impact_current": 62, "fixed_lighting_outlets_count": 14, "current_energy_efficiency_band": "D", "environmental_impact_potential": 83, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 44, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-90dee53bc1c7": { "uprn": 100010145444, "roofs": [ { "description": { "value": "Pitched, 150 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, filled cavity", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": { "value": "Low energy lighting in 22% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2015-10-07 20:59:28.000000", "door_count": 2, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17693 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "cylinder_insulation_type": 2, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 38 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Semi-detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-85af8fcba06b", "assessment_type": "RdSAP", "completion_date": "2015-10-07", "inspection_date": "2015-10-07", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 66, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2015-10-07", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.53, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.99, "quantity": "square metres" }, "party_wall_length": { "value": 6.2, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 17.12, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.6, "quantity": "metres" }, "total_floor_area": { "value": 32.24, "quantity": "square metres" }, "party_wall_length": { "value": 6.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.7, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 22, "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 476, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.9, "energy_rating_average": 60, "energy_rating_current": 67, "lighting_cost_current": { "value": 80, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 453, "currency": "GBP" }, "hot_water_cost_current": { "value": 154, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 18, "currency": "GBP" }, "indicative_cost": "\u00a315 - \u00a330", "improvement_type": "C", "improvement_details": { "improvement_number": 2 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 68 }, { "sequence": 3, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a335", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 69 }, { "sequence": 4, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 5, "typical_saving": { "value": 252, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 85, "environmental_impact_rating": 83 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 85, "lighting_cost_potential": { "value": 45, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "hot_water_cost_potential": { "value": 79, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3072, "impact_of_loft_insulation": -224, "space_heating_existing_dwelling": 6611 }, "energy_consumption_current": 251, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "9.0.0", "energy_consumption_potential": 119, "environmental_impact_current": 64, "fixed_lighting_outlets_count": 9, "current_energy_efficiency_band": "D", "environmental_impact_potential": 83, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 44, "low_energy_fixed_lighting_outlets_count": 2 }, "cert-e2e04c74c712": { "uprn": 100010145459, "roofs": [ { "description": { "value": "Pitched, 200 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Some double glazing", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2015-06-09 13:30:42", "door_count": 3, "glazed_area": 1, "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "N", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "mcs_installed_heat_pump": "false", "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10328 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "End-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-eec956a8094c", "assessment_type": "RdSAP", "completion_date": "2015-06-09", "inspection_date": "2015-06-09", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 85, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "pvc_window_frames": "false", "registration_date": "2015-06-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.33, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 17.96, "quantity": "square metres" }, "party_wall_length": { "value": 4.8, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 18.7, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.33, "quantity": "metres" }, "total_floor_area": { "value": 33.36, "quantity": "square metres" }, "party_wall_length": { "value": 4.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.7, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.24, "quantity": "metres" }, "total_floor_area": { "value": 33.36, "quantity": "square metres" }, "party_wall_length": { "value": 4.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1049, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.7, "energy_rating_average": 60, "energy_rating_current": 51, "lighting_cost_current": { "value": 107, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 643, "currency": "GBP" }, "hot_water_cost_current": { "value": 106, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 287, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3500 - \u00c2\u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 56 }, { "sequence": 2, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a34,000 - \u00c2\u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 58 }, { "sequence": 3, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a375", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 59 }, { "sequence": 4, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a3350 - \u00c2\u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 5, "typical_saving": { "value": 34, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a34,000 - \u00c2\u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 63 }, { "sequence": 6, "typical_saving": { "value": 60, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a33,300 - \u00c2\u00a36,500", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 66 }, { "sequence": 7, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "\u00c2\u00a35,000 - \u00c2\u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 2.4, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 54, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 56, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 64, "environmental_impact_rating": 59 } ], "hot_water_cost_potential": { "value": 72, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2168, "impact_of_cavity_insulation": -5233, "space_heating_existing_dwelling": 16593 }, "energy_consumption_current": 384, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 25, "calculation_software_version": "1.0.x", "energy_consumption_potential": 158, "environmental_impact_current": 44, "fixed_lighting_outlets_count": 15, "current_energy_efficiency_band": "E", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 68, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-aa8031b9e15b": { "uprn": 100010145443, "roofs": [ { "description": { "value": "Pitched, 270 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Cavity wall, filled cavity", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 44% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2015-05-12 14:46:24", "door_count": 1, "glazed_area": 1, "glazing_gap": 12, 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"main_heating_data_source": 1, "main_heating_index_number": 1707 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Semi-detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-f4978474370a", "assessment_type": "RdSAP", "completion_date": "2015-04-29", "inspection_date": "2015-04-29", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 84, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2015-04-29", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.41, "quantity": "square metres" }, "party_wall_length": { "value": 6.17, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.46, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.56, "quantity": "metres" }, "total_floor_area": { "value": 32.6, "quantity": "square metres" }, "party_wall_length": { "value": 6.17, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.75, "quantity": 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"lighting_cost_current": { "value": 53, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 1, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 842, "currency": "GBP" }, "hot_water_cost_current": { "value": 312, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 73, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 167, "currency": "GBP" }, "indicative_cost": "1,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 47, "environmental_impact_rating": 39 }, { "sequence": 2, "typical_saving": { "value": 39, "currency": "GBP" }, "indicative_cost": "1,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 49, "environmental_impact_rating": 41 }, { "sequence": 3, "typical_saving": { "value": 46, "currency": "GBP" }, "indicative_cost": 450, "improvement_type": "G", "improvement_details": { "improvement_number": 13 }, "improvement_category": 5, "energy_performance_rating": 50, "environmental_impact_rating": 42 }, { "sequence": 4, "typical_saving": { "value": 255, "currency": "GBP" }, "indicative_cost": "3,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 60, "environmental_impact_rating": 53 }, { "sequence": 5, "typical_saving": { "value": 42, "currency": "GBP" }, "indicative_cost": "6,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 62, "environmental_impact_rating": 55 }, { "sequence": 6, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "8,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 64 } ], "co2_emissions_potential": 3.4, "energy_rating_potential": 72, "lighting_cost_potential": { "value": 53, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 47, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 49, "environmental_impact_rating": 41 }, { "sequence": 2, "typical_saving": { "value": 49, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 49, "environmental_impact_rating": 85 }, { "sequence": 3, "typical_saving": { "value": 375, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 65, "environmental_impact_rating": 56 } ], "hot_water_cost_potential": { "value": 74, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 5191, "impact_of_loft_insulation": -2962, "impact_of_cavity_insulation": -3133, "space_heating_existing_dwelling": 16682 }, "energy_consumption_current": 481, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.02r10", "energy_consumption_potential": 229, "environmental_impact_current": 34, "fixed_lighting_outlets_count": 9, "current_energy_efficiency_band": "E", "environmental_impact_potential": 64, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 85, "low_energy_fixed_lighting_outlets_count": 9 }, "cert-ea62217e84ca": { "uprn": 100010145459, "roofs": [ { "description": { "value": "Pitched, 350 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "To unheated space, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Some double glazing", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "SK10 2PW", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2015-04-29 17:44:19", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "End-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-eec956a8094c", "assessment_type": "RdSAP", "completion_date": "2015-04-29", "inspection_date": "2015-04-28", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 86, "transaction_type": 9, "conservatory_type": 1, "heated_room_count": 4, "pvc_window_frames": "true", "registration_date": "2015-04-29", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 18, "quantity": "square metres" }, "party_wall_length": { "value": 4.25, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 12.85, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.35, "quantity": "metres" }, "total_floor_area": { "value": 18, "quantity": "square metres" }, "party_wall_length": { "value": 4.25, "quantity": "metres" }, "heat_loss_perimeter": { "value": 8.05, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.25, "quantity": "metres" }, "total_floor_area": { "value": 18, "quantity": "square metres" }, "party_wall_length": { "value": 4.25, "quantity": "metres" }, "heat_loss_perimeter": { "value": 8.05, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "350mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 2, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 0, "total_floor_area": { "value": 15.84, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 3, "heat_loss_perimeter": { "value": 7.5, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.25, "quantity": "metres" }, "total_floor_area": { "value": 15.84, "quantity": "square metres" }, "party_wall_length": 0, "heat_loss_perimeter": { "value": 11.4, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "350mm", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 912, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.1, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 108, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 531, "currency": "GBP" }, "hot_water_cost_current": { "value": 112, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 17, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 238, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 65, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 27, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 62 }, { "sequence": 3, "typical_saving": { "value": 16, "currency": "GBP" }, "indicative_cost": "\u00a380 - \u00a3120", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 63 }, { "sequence": 4, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00a375", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 65 }, { "sequence": 5, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 66 }, { "sequence": 6, "typical_saving": { "value": 37, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 7, "typical_saving": { "value": 74, "currency": "GBP" }, "indicative_cost": "\u00a33,300 - \u00a36,500", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 72 }, { "sequence": 8, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 84, "environmental_impact_rating": 81 } ], "co2_emissions_potential": 1.8, "energy_rating_potential": 84, "lighting_cost_potential": { "value": 54, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 46, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 67, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2156, "impact_of_cavity_insulation": -4505, "space_heating_existing_dwelling": 14623 }, "energy_consumption_current": 335, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 10, "calculation_software_version": "9.0.0", "energy_consumption_potential": 120, "environmental_impact_current": 49, "fixed_lighting_outlets_count": 15, "current_energy_efficiency_band": "D", "environmental_impact_potential": 81, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 59, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-2c9416c564dc": { "uprn": 100010145472, "roofs": [ { "description": "Pitched, limited insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in 22% of fixed outlets", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "SK10 2PW", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2015-02-23 06:54:10", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 19, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 9466 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-58104daafc82", "assessment_type": "RdSAP", "completion_date": "2015-02-23", "inspection_date": "2015-02-21", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 108, "transaction_type": 13, "conservatory_type": 1, "heated_room_count": 6, "pvc_window_frames": "true", "registration_date": "2015-02-23", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 35.9, "quantity": "square metres" }, "party_wall_length": { "value": 10.4, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 35.9, "quantity": "square metres" }, "party_wall_length": { "value": 10.4, "quantity": "metres" }, "heat_loss_perimeter": { "value": 13.8, "quantity": "metres" } }, { "floor": 2, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 35.9, "quantity": "square metres" }, "party_wall_length": { "value": 10.4, "quantity": "metres" }, "heat_loss_perimeter": { "value": 13.8, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "E", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 22, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 845, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.8, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 112, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 1, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 734, "currency": "GBP" }, "hot_water_cost_current": { "value": 124, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 41, "currency": "GBP" }, "indicative_cost": "\u00a335", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 59 }, { "sequence": 2, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 61 }, { "sequence": 3, "typical_saving": { "value": 83, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 65 }, { "sequence": 4, "typical_saving": { "value": 35, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 67 }, { "sequence": 5, "typical_saving": { "value": 248, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 2.9, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 63, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 112, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 71, "environmental_impact_rating": 64 } ], "hot_water_cost_potential": { "value": 75, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2263, "impact_of_loft_insulation": -2171, "space_heating_existing_dwelling": 12756 }, "energy_consumption_current": 252, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.01r64", "energy_consumption_potential": 152, "environmental_impact_current": 58, "fixed_lighting_outlets_count": 9, "current_energy_efficiency_band": "D", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 44, "low_energy_fixed_lighting_outlets_count": 2 }, "cert-da8828676d60": { "uprn": 10007965108, "roofs": [ { "description": "Average thermal transmittance 0.14 W/m\u00b2K", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Average thermal transmittance 0.26 W/m\u00b2K", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "floors": [ { "description": "Average thermal transmittance 0.21 W/m\u00b2K", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "status": "entered", "tenure": "ND", "windows": { "description": "High performance glazing", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "SK10 2PW", "data_type": 2, "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2014-11-30 18:04:17", "living_area": 17.4, "orientation": 3, "region_code": 19, "report_type": 3, "sap_heating": { "thermal_store": 1, "water_fuel_type": 1, "water_heating_code": 901, "main_heating_details": [ { "main_fuel_type": 1, "heat_emitter_type": 1, "emitter_temperature": 1, "is_flue_fan_present": "true", "main_heating_number": 1, "main_heating_control": 2106, "is_interlocked_system": "true", "main_heating_category": 2, "main_heating_fraction": 1, "main_heating_flue_type": 2, "central_heating_pump_age": 1, "main_heating_data_source": 1, "main_heating_index_number": 16839, "has_separate_delayed_start": "true", "load_or_weather_compensation": 4, "compensating_controller_index_number": 696321, "is_central_heating_pump_in_heated_space": "true" } ], "has_hot_water_cylinder": "false", "has_fixed_air_conditioning": "false", "secondary_heating_category": 1, "sap_heating_design_water_use": 1 }, "sap_version": 9.92, "schema_type": "SAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "Air permeability 3.3 m\u00b3/h.m\u00b2 (as tested)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "dwelling_type": "Detached house", "language_code": 1, "property_type": 0, "address_line_1": "addr-79c48318a969", "assessment_date": "2014-11-30", "assessment_type": "SAP", "completion_date": "2014-11-30", "inspection_date": "2014-11-30", "sap_ventilation": { "psv_count": 0, "pressure_test": 1, "air_permeability": 3.3, "open_flues_count": 0, "ventilation_type": 1, "extract_fans_count": 4, "open_fireplaces_count": 0, "sheltered_sides_count": 2, "flueless_gas_fires_count": 0 }, "design_water_use": 1, "sap_data_version": 9.92, "total_floor_area": 94, "transaction_type": 6, "conservatory_type": 1, "registration_date": "2014-11-30", "sap_energy_source": { "electricity_tariff": 1, "wind_turbines_count": 0, "wind_turbine_terrain_type": 2, "fixed_lighting_outlets_count": 1, "low_energy_fixed_lighting_outlets_count": 1, "low_energy_fixed_lighting_outlets_percentage": 100 }, "sap_opening_types": [ { "name": "Door (1)", "type": 2, "u_value": 1.4, "frame_type": 2, "data_source": 2, "description": "Data from Manufacturer", "glazing_type": 7 }, { "name": "Windows (1)", "type": 4, "u_value": 1.1, "frame_type": 2, "data_source": 2, "description": "Data from Manufacturer", "frame_factor": 0.7, "glazing_type": 7, "solar_transmittance": 0.63 } ], "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "sap_roofs": [ { "name": "roof at joists", "u_value": 0.13, "roof_type": 2, "kappa_value": 9, "total_roof_area": 57.02 }, { "name": "roof at rafters", "u_value": 0.27, "roof_type": 2, "kappa_value": 9, "total_roof_area": 3.94 } ], "sap_walls": [ { "name": "external walls", "u_value": 0.26, "wall_type": 2, "kappa_value": 60, "total_wall_area": 147.64, "is_curtain_walling": "false" }, { "name": "block walls", "u_value": 0, "wall_type": 5, "kappa_value": 75, "total_wall_area": 109.25 }, { "name": "stud walls", "u_value": 0, "wall_type": 5, "kappa_value": 9, "total_wall_area": 75.26 } ], "identifier": "Main Dwelling", "overshading": 2, "sap_openings": [ { "name": 1, "type": "Door (1)", "width": 0, "height": 0, "location": "external walls", "orientation": 3 }, { "name": 2, "type": "Windows (1)", "width": 0, "height": 0, "location": "external walls", "orientation": 5 }, { "name": 3, "type": "Windows (1)", "width": 0, "height": 0, "location": "external walls", "orientation": 3 }, { "name": 4, "type": "Windows (1)", "width": 0, "height": 0, "location": "external walls", "orientation": 7 } ], "construction_year": 2014, "sap_thermal_bridges": { "thermal_bridges": [ { "length": 0, "psi_value": 1, "psi_value_source": 4, "thermal_bridge_type": "E1" }, { "length": 11.3, "psi_value": 0.3, "psi_value_source": 3, "thermal_bridge_type": "E2" }, { "length": 11.3, "psi_value": 0.04, "psi_value_source": 3, "thermal_bridge_type": "E3" }, { "length": 30.2, "psi_value": 0.05, "psi_value_source": 3, "thermal_bridge_type": "E4" }, { "length": 31.7, "psi_value": 0.16, "psi_value_source": 3, "thermal_bridge_type": "E5" }, { "length": 19.2, "psi_value": 0.07, "psi_value_source": 3, "thermal_bridge_type": "E6" }, { "length": 0, "psi_value": 0.14, "psi_value_source": 3, "thermal_bridge_type": "E7" }, { "length": 0, "psi_value": 0, "psi_value_source": 3, "thermal_bridge_type": "E8" }, { "length": 0, "psi_value": 0.04, "psi_value_source": 3, "thermal_bridge_type": 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"energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": "Cavity wall, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TA6 7DZ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", 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"window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.55, "window_height": 1.92, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.55, "window_height": 1.92, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 6, "window_type": 1, "glazing_type": 2, "window_width": 0.83, "window_height": 1.54, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.3, "window_height": 1.24, "draught_proofed": "true", "window_location": 3, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.19, "window_height": 0.88, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.22, "window_height": 1.43, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.22, "window_height": 1.43, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.09, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.94, "window_height": 1.45, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "End-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-93dd833e9f69", "assessment_type": "RdSAP", "completion_date": "2025-08-05", "inspection_date": "2025-08-04", "extensions_count": 3, "measurement_type": 2, "open_flues_count": 1, "total_floor_area": 96, "transaction_type": 15, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-08-05", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 285, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.54, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.73, "quantity": "square metres" }, "party_wall_length": { "value": 6.8, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 13, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.46, "quantity": "metres" }, "total_floor_area": { "value": 32.64, "quantity": "square metres" }, "party_wall_length": { "value": 6.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.9, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 285, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.39, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 14.88, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 4.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.36, "quantity": "metres" }, "total_floor_area": { "value": 14.88, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 285, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.29, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.56, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.4, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 3", "wall_dry_lined": "N", "wall_thickness": 140, "floor_heat_loss": 7, "roof_construction": 8, "wall_construction": 3, "building_part_number": 4, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.2, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.37, "quantity": "square metres" }, "party_wall_length": { "value": 6.1, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 1.7, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 1379, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.7, "energy_rating_average": 60, "energy_rating_current": 55, "lighting_cost_current": { "value": 73, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "blocked_chimneys_count": 3, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 792, "currency": "GBP" }, "hot_water_cost_current": { "value": 236, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 83, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 65, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A2", "improvement_details": { "improvement_number": 45 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 51 }, { "sequence": 2, "typical_saving": { "value": 294, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 60 }, { "sequence": 3, "typical_saving": { "value": 79, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 63 }, { "sequence": 4, "typical_saving": { "value": 59, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 65 }, { "sequence": 5, "typical_saving": { "value": 152, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,500", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 70 }, { "sequence": 6, "typical_saving": { "value": 239, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 71 } ], "co2_emissions_potential": 2.6, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 73, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 84, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 66, "environmental_impact_rating": 63 }, { "sequence": 2, "typical_saving": { "value": 85, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 67, "environmental_impact_rating": 95 }, { "sequence": 3, "typical_saving": { "value": 21, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 68, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 173, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2691.69, "space_heating_existing_dwelling": 13763.35 }, "draughtproofed_door_count": 0, "energy_consumption_current": 268, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0290", "energy_consumption_potential": 140, "environmental_impact_current": 49, "current_energy_efficiency_band": "D", "environmental_impact_potential": 71, "led_fixed_lighting_bulbs_count": 15, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 49, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-5052bd443478": { "uprn": 100040888109, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Low energy lighting in 42% of fixed outlets", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TA6 7DZ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2023-11-16 19:43:30", "door_count": 0, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "sap_main_heating_code": 103, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "secondary_heating_type": 612, "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-aecf29bc53f3", "assessment_type": "RdSAP", "completion_date": "2023-11-16", "inspection_date": "2023-11-16", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 87, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2023-11-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_alternative_wall": { "wall_area": 6.55, "wall_dry_lined": "N", "wall_thickness": 250, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.57, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.7, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 7.01, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.44, "quantity": "metres" }, "total_floor_area": { "value": 33.22, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.4, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.57, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 9.32, "quantity": "square metres" }, "party_wall_length": { "value": 3.85, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 6.32, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.39, "quantity": "metres" }, "total_floor_area": { "value": 9.32, "quantity": "square metres" }, "party_wall_length": { "value": 3.85, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.32, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 42, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1398, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.7, "energy_rating_average": 60, "energy_rating_current": 63, "lighting_cost_current": { "value": 214, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 846, "currency": "GBP" }, "hot_water_cost_current": { "value": 317, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 387, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 2, "typical_saving": { "value": 82, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 68 }, { "sequence": 3, "typical_saving": { "value": 62, "currency": "GBP" }, "indicative_cost": "\u00a335", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 69 }, { "sequence": 4, "typical_saving": { "value": 155, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 73 }, { 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"ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 245, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.24, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 5.46, "quantity": "square metres" }, "party_wall_length": { "value": 2.19, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.68, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 732, "currency": "GBP" }, 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"indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 32, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 68 }, { "sequence": 4, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 70 }, { "sequence": 5, "typical_saving": { "value": 396, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.2, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 93, "currency": "GBP" }, "schema_version_original": "20.0.0", "hot_water_cost_potential": { "value": 83, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2590, "impact_of_loft_insulation": -1376, "impact_of_solid_wall_insulation": -2991, "space_heating_existing_dwelling": 13576 }, "energy_consumption_current": 213, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.10r0002", "energy_consumption_potential": 104, "environmental_impact_current": 58, "fixed_lighting_outlets_count": 18, "current_energy_efficiency_band": "D", "environmental_impact_potential": 77, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 38, "low_energy_fixed_lighting_outlets_count": 18 }, "cert-b900abc2d0d3": { "uprn": 100040888111, "roofs": [ { "description": "Pitched, 100 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Roof room(s), insulated", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in all fixed outlets", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "TA6 7DZ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2022-07-19 13:59:27.607482", "door_count": 3, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18225 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-e14c708add48", "assessment_type": "RdSAP", "completion_date": "2022-07-19", "inspection_date": "2022-07-19", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 111, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 7, "pvc_window_frames": "false", "registration_date": "2022-07-19", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": 20.7, "insulation": 3, "roof_room_connected": "N", "construction_age_band": "A", "roof_insulation_thickness": "50mm" }, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.56, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.3, "quantity": "square 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"total_floor_area": { "value": 6.72, "quantity": "square metres" }, "party_wall_length": { "value": 2.8, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 0.3, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.38, "quantity": "metres" }, "total_floor_area": { "value": 6.72, "quantity": "square metres" }, "party_wall_length": { "value": 2.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 320, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.16, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.08, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "K", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 100, "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 552, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.4, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 85, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 454, "currency": "GBP" }, "hot_water_cost_current": { "value": 96, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 69 }, { "sequence": 2, "typical_saving": { "value": 48, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 29, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 73 }, { "sequence": 4, "typical_saving": { "value": 377, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 84, "environmental_impact_rating": 81 } ], "co2_emissions_potential": 1.6, "energy_rating_potential": 84, "lighting_cost_potential": { "value": 85, "currency": "GBP" }, "schema_version_original": "20.0.0", "hot_water_cost_potential": { "value": 67, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2271, "impact_of_loft_insulation": -693, "impact_of_solid_wall_insulation": -1176, "space_heating_existing_dwelling": 10578 }, "energy_consumption_current": 175, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.09r0002", "energy_consumption_potential": 81, "environmental_impact_current": 66, "fixed_lighting_outlets_count": 16, "current_energy_efficiency_band": "C", "environmental_impact_potential": 81, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 31, "low_energy_fixed_lighting_outlets_count": 16 }, "cert-b89f048b17ce": { "uprn": 100040888113, "roofs": [ { "description": "Pitched, 100 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Low energy lighting in 67% of fixed outlets", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TA6 7DZ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2021-10-19 18:26:58.585748", "door_count": 1, "glazed_area": 1, "glazing_gap": 12, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17985 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "has_fixed_air_conditioning": "false" }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-3ca5158bac6b", "assessment_type": "RdSAP", "completion_date": "2021-10-19", "inspection_date": "2021-10-19", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 95, "transaction_type": 8, "conservatory_type": 2, "heated_room_count": 3, "pvc_window_frames": 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"party_wall_length": { "value": 15.68, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 7.59, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 34.73, "quantity": "square metres" }, "party_wall_length": { "value": 15.68, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.09, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 225, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.43, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 11.93, "quantity": "square metres" }, "party_wall_length": { "value": 4.31, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 7.08, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.34, "quantity": "metres" }, "total_floor_area": { "value": 11.93, "quantity": "square metres" }, "party_wall_length": { "value": 4.31, "quantity": "metres" }, "heat_loss_perimeter": { "value": 7.08, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 67, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 608, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.7, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 101, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 466, "currency": "GBP" }, "hot_water_cost_current": { "value": 91, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 122, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 67 }, { "sequence": 2, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3800 - \u00a31,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 69 }, { "sequence": 3, "typical_saving": { "value": 22, "currency": "GBP" }, "indicative_cost": "\u00a320", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 69 }, { "sequence": 4, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 71 }, { "sequence": 5, "typical_saving": { "value": 371, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 83, "environmental_impact_rating": 80 } ], 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"roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, { "description": "Pitched, limited insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, as built, partial insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "high_exposure": "true", "cavity_fill_recommended": "true" }, "lighting": { "description": "Low energy lighting in 44% of fixed outlets", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TA6 7DZ", "hot_water": { "description": "Electric immersion, standard tariff", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 2 }, "post_town": "", "built_form": 4, "created_at": "2021-09-09 19:55:21.773713", "door_count": 2, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 903, "water_heating_fuel": 29, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 29, "heat_emitter_type": 0, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2601, "main_heating_category": 10, "main_heating_fraction": 1, "sap_main_heating_code": 691, "main_heating_data_source": 2 } ], "immersion_heating_type": 2, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-20.0.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Room heaters, electric", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 2 } ], "dwelling_type": "Mid-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-8ae3d14152de", "assessment_type": "RdSAP", "completion_date": "2021-09-09", "inspection_date": "2021-09-09", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 93, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 1, "registration_date": "2021-09-09", "sap_energy_source": { "mains_gas": "N", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Portable electric heaters (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.55, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 33.75, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 6.6, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 33.75, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 9.12, "quantity": "square metres" }, "party_wall_length": { "value": 3.8, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 3.8, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.34, "quantity": "metres" }, "total_floor_area": { "value": 9.12, "quantity": "square metres" }, "party_wall_length": { "value": 3.8, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.24, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.2, "quantity": "square metres" }, "party_wall_length": { "value": 3, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.4, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "F", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 44, "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 1798, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.3, "energy_rating_average": 60, "energy_rating_current": 26, "lighting_cost_current": { "value": 116, "currency": "GBP" }, "main_heating_controls": [ { "description": "No thermostatic control of room temperature", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 502, "currency": "GBP" }, "hot_water_cost_current": { "value": 422, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 121, "currency": "GBP" }, "indicative_cost": "\u00a3100 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"energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": { "value": "Low energy lighting in 35% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TA6 7DZ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2019-12-09 22:20:48", "door_count": 2, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 4, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 3, "rooms_with_mixer_shower_no_bath": 2, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "N", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 9465 } ], "immersion_heating_type": "NA", "secondary_heating_type": 605, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 9.94, "schema_type": "RdSAP-Schema-19.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Detached house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-946f6de0df50", "assessment_type": "RdSAP", "completion_date": "2019-12-09", "inspection_date": "2019-12-06", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 194, "transaction_type": 1, "conservatory_type": 4, "heated_room_count": 7, "registration_date": "2019-12-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, mains gas", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "floor_area": { "value": 18.46, "quantity": "square metres" }, "room_height": 1, "double_glazed": "Y", "glazed_perimeter": { "value": 12.16, "quantity": "metres" } }, { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 75.29, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 1, "heat_loss_perimeter": { "value": 32.41, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 100.47, "quantity": "square metres" }, "party_wall_length": 0, "heat_loss_perimeter": { "value": 38.22, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "low_energy_lighting": 35, "solar_water_heating": "N", "habitable_room_count": 7, "heating_cost_current": { "value": 834, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 5.3, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 167, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 784, "currency": "GBP" }, "hot_water_cost_current": { "value": 144, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a375", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 66 }, { "sequence": 2, "typical_saving": { "value": 76, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 68 }, { "sequence": 3, "typical_saving": { "value": 49, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 70 }, { "sequence": 4, "typical_saving": { "value": 340, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 3.4, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 101, "currency": "GBP" }, "schema_version_original": "LIG-19.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 226, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 77, "environmental_impact_rating": 71 } ], "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2776, "space_heating_existing_dwelling": 13361 }, "energy_consumption_current": 155, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.1.1.0", "energy_consumption_potential": 99, "environmental_impact_current": 65, "fixed_lighting_outlets_count": 23, "windows_transmission_details": { "u_value": 2, "data_source": 2, "solar_transmittance": 0.72 }, "current_energy_efficiency_band": "C", "environmental_impact_potential": 75, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 27, "low_energy_fixed_lighting_outlets_count": 8 }, "cert-aaf7d682906c": { "uprn": 100040888118, "roofs": [ { "description": { "value": "Pitched, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Roof room(s), ceiling insulated", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "walls": [ { "description": { "value": "Cavity wall, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": { "value": "Low energy lighting in 82% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "TA6 7DZ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2017-04-19 16:44:28", "door_count": 2, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 2, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 0 }, "secondary_fuel_type": 6, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 1967 } ], "immersion_heating_type": "NA", "secondary_heating_type": 633, "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.1", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-1dfcbff793f6", "assessment_type": "RdSAP", "completion_date": "2017-04-19", "inspection_date": "2017-04-18", "extensions_count": 2, "measurement_type": 2, "total_floor_area": 96, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2017-04-19", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, wood logs", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "lzc_energy_sources": [ 4 ], "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 265, "floor_heat_loss": 7, "sap_room_in_roof": { "floor_area": { "value": 14.65, "quantity": "square metres" }, "insulation": 2, "roof_room_connected": "N", "construction_age_band": "C", "roof_insulation_thickness": "100mm" }, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_alternative_wall": { "wall_area": 2.2, "wall_dry_lined": "N", "wall_thickness": 230, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.59, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 35.04, "quantity": "square metres" }, "party_wall_length": { "value": 14.6, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 5, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.59, "quantity": "metres" }, "total_floor_area": { "value": 35.04, "quantity": "square metres" }, "party_wall_length": { "value": 14.6, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 230, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.39, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.4, "quantity": "square metres" }, "party_wall_length": { "value": 4, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 6.6, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.39, "quantity": "metres" }, "total_floor_area": { "value": 10.4, "quantity": "square metres" }, "party_wall_length": { "value": 4, "quantity": "metres" }, "heat_loss_perimeter": { "value": 6.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 2", "wall_dry_lined": "N", "wall_thickness": 265, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 3, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 1.15, "quantity": "square metres" }, "party_wall_length": 0, "floor_construction": 2, "heat_loss_perimeter": { "value": 3.4, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 82, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 955, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.9, "energy_rating_average": 60, "energy_rating_current": 52, "lighting_cost_current": { "value": 73, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 584, "currency": "GBP" }, "hot_water_cost_current": { "value": 158, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 150, "currency": "GBP" }, "indicative_cost": "\u00a31,500 - \u00a32,700", "improvement_type": "A3", "improvement_details": { "improvement_number": 46 }, "improvement_category": 5, "energy_performance_rating": 58, "environmental_impact_rating": 54 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 59, "environmental_impact_rating": 55 }, { "sequence": 3, "typical_saving": { "value": 121, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 61 }, { "sequence": 4, "typical_saving": { "value": 108, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,000", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 67 }, { "sequence": 5, "typical_saving": { "value": 45, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 69 }, { "sequence": 6, "typical_saving": { "value": 301, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a38,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 1.8, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 73, "currency": "GBP" }, "schema_version_original": "LIG-17.0", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 64, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 64, "environmental_impact_rating": 94 }, { "sequence": 2, "typical_saving": { "value": 154, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 70, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 76, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2682, "impact_of_loft_insulation": -2036, "impact_of_cavity_insulation": -506, "impact_of_solid_wall_insulation": -2066, "space_heating_existing_dwelling": 14488 }, "energy_consumption_current": 314, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "9.0.0", "energy_consumption_potential": 117, "environmental_impact_current": 48, "fixed_lighting_outlets_count": 11, "current_energy_efficiency_band": "E", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 51, "low_energy_fixed_lighting_outlets_count": 9 }, "cert-4a21bf417abf": { "uprn": 100040888133, "roofs": [ { "description": { "value": "Pitched, 300 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, { "description": { "value": "Pitched, insulated (assumed)", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Cavity wall, as built, insulated (assumed)", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, insulated (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": { "value": "No low energy lighting", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "postcode": "TA6 7DZ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2017-03-13 19:45:26", "door_count": 1, "glazed_area": 1, "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "secondary_fuel_type": 6, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 8108 } ], "immersion_heating_type": "NA", "secondary_heating_type": 633, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-4a0187600deb", "assessment_type": "RdSAP", "completion_date": "2017-03-13", "inspection_date": "2017-03-11", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 89, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2017-03-13", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": { "value": "Room heaters, wood logs", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "lzc_energy_sources": [ 4 ], "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.57, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 41.32, "quantity": "square metres" }, "party_wall_length": { "value": 14.12, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 8.48, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.36, "quantity": "metres" }, "total_floor_area": { "value": 40.39, "quantity": "square metres" }, "party_wall_length": { "value": 14.12, "quantity": "metres" }, "heat_loss_perimeter": { "value": 11.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension", "wall_dry_lined": "N", "wall_thickness": 330, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.39, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 7.33, "quantity": "square metres" }, "party_wall_length": { "value": 3.03, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.45, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "K", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 0, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 564, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.1, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 117, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, TRVs and bypass", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 1, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 377, "currency": "GBP" }, "hot_water_cost_current": { "value": 121, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 148, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 71 }, { "sequence": 2, "typical_saving": { "value": 49, "currency": "GBP" }, "indicative_cost": "\u00a350", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 22, "currency": "GBP" }, "indicative_cost": "\u00a3350 - \u00a3450", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 74 }, { "sequence": 4, "typical_saving": { "value": 39, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - 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"typical_saving": { "value": 47, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 75, "environmental_impact_rating": 95 }, { "sequence": 2, "typical_saving": { "value": 28, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 75, "environmental_impact_rating": 72 } ], "hot_water_cost_potential": { "value": 72, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2180, "impact_of_solid_wall_insulation": -2585, "space_heating_existing_dwelling": 7665 }, "energy_consumption_current": 212, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "2.0.0.0", "energy_consumption_potential": 57, "environmental_impact_current": 64, "fixed_lighting_outlets_count": 10, "windows_transmission_details": { "u_value": 2, "data_source": 2, "solar_transmittance": 0.72 }, "current_energy_efficiency_band": "D", "environmental_impact_potential": 87, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 35, "low_energy_fixed_lighting_outlets_count": 0 }, "cert-e971b2c3c150": { "uprn": 100040888107, "roofs": [ { "description": { "value": "Pitched, 250 mm loft insulation", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": { "value": "Solid brick, as built, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": { "value": "Cavity wall, as built, insulated (assumed)", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": { "value": "Suspended, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": { "value": "Solid, no insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 60% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TA6 7DZ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2017-02-14 21:47:55.000000", "door_count": 2, "glazed_area": 1, "glazing_gap": "16+", "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, 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"fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17001 } ], "immersion_heating_type": "NA", "secondary_heating_type": 603, "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": "End-terrace house", "language_code": 1, "property_type": 0, "address_line_1": "addr-f9fb078d7d37", "assessment_type": "RdSAP", "completion_date": "2016-05-04", "inspection_date": "2016-05-04", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 91, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2016-05-04", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "photovoltaic_supply": { "none_or_no_details": { "pv_connection": 0, "percent_roof_area": 0 } }, "wind_turbines_count": 0, "wind_turbines_terrain_type": 2 }, "secondary_heating": { "description": "Room heaters, mains gas", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 260, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.59, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 40.47, "quantity": "square metres" }, "party_wall_length": { "value": 7.01, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 16.49, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 40.23, "quantity": "square metres" }, "party_wall_length": { "value": 6.96, "quantity": "metres" }, "heat_loss_perimeter": { "value": 18.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 10.46, "quantity": "square metres" }, "party_wall_length": { "value": 3.21, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 9.33, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 20, "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 827, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.5, "energy_rating_average": 60, "energy_rating_current": 58, "lighting_cost_current": { "value": 105, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 2, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 502, "currency": "GBP" }, "hot_water_cost_current": { "value": 106, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 57, "currency": "GBP" }, "indicative_cost": "1,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 60, "environmental_impact_rating": 53 }, { "sequence": 2, "typical_saving": { "value": 242, "currency": "GBP" }, "indicative_cost": "14,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 69, "environmental_impact_rating": 66 }, { "sequence": 3, "typical_saving": { "value": 34, "currency": "GBP" }, "indicative_cost": "1,200", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 68 }, { "sequence": 4, "typical_saving": { "value": 40, "currency": "GBP" }, "indicative_cost": 60, "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 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insulation (assumed)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": { "value": "Fully double glazed", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": { "value": "Low energy lighting in 33% of fixed outlets", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TA6 7DZ", "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2016-01-26 13:46:33.000000", "door_count": 0, "glazed_area": 1, "glazing_gap": "16+", "region_code": 12, "report_type": 2, "sap_heating": { "cylinder_size": 1, "water_heating_code": 901, "water_heating_fuel": 26, "instantaneous_wwhrs": { "rooms_with_bath_and_or_shower": 1, "rooms_with_mixer_shower_no_bath": 0, "rooms_with_bath_and_mixer_shower": 1 }, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16810 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 9.92, "schema_type": "RdSAP-Schema-17.0", "uprn_source": "Energy Assessor", "country_code": "EAW", "main_heating": [ { "description": { "value": "Boiler and radiators, mains gas", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "dwelling_type": { "value": "Mid-terrace house", "language": "1" }, "language_code": 1, "property_type": 0, "address_line_1": "addr-2dd9083ac55b", "assessment_type": "RdSAP", 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"value": 46.82, "quantity": "square metres" }, "party_wall_length": { "value": 20.03, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 14.27, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.58, "quantity": "metres" }, "total_floor_area": { "value": 43.31, "quantity": "square metres" }, "party_wall_length": { "value": 19.06, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "wall_insulation_thickness": "NI" } ], "low_energy_lighting": 33, "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 670, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.7, "energy_rating_average": 60, "energy_rating_current": 64, "lighting_cost_current": { "value": 95, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Programmer, room thermostat and TRVs", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "multiple_glazing_type": 3, "open_fireplaces_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 409, "currency": "GBP" }, "hot_water_cost_current": { "value": 95, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 90, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 49, "currency": "GBP" }, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 186, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a314,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 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"improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72 }, { "sequence": 6, "typical_saving": { "value": 238, "currency": "GBP" }, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 82, "environmental_impact_rating": 81 } ], "co2_emissions_potential": 1.6, "energy_rating_potential": 82, "lighting_cost_potential": { "value": 49, "currency": "GBP" }, "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 85, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 73, "environmental_impact_rating": 71 } ], "hot_water_cost_potential": { "value": 66, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2182, "impact_of_loft_insulation": -464, "impact_of_cavity_insulation": -696, "space_heating_existing_dwelling": 9660 }, "seller_commission_report": "Y", "energy_consumption_current": 197, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": 8.0, "energy_consumption_potential": 90, "environmental_impact_current": 64, "fixed_lighting_outlets_count": 12, "current_energy_efficiency_band": "D", "environmental_impact_potential": 81, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 38, "low_energy_fixed_lighting_outlets_count": 6 } }, "TS202UP": { "cert-dae7c8561baf": { "uprn": 100110200632, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-06-09 07:30:59", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15709 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 0.85, "window_height": 0.53, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 4, "window_type": 1, "glazing_type": 2, "window_width": 1.74, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 1.17, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 8, "window_type": 1, "glazing_type": 2, "window_width": 1.75, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-09ce49613e0f", "assessment_type": "RdSAP", "completion_date": "2026-06-09", "inspection_date": "2026-06-08", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 56, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-06-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 350, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 56.45, "quantity": "square metres" }, "party_wall_length": { "value": 16.2, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.94, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 578, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 73, "lighting_cost_current": { "value": 46, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 538, "currency": "GBP" }, "hot_water_cost_current": { "value": 243, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 39, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 82 }, { "sequence": 2, "typical_saving": { "value": 205, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 83 } ], "co2_emissions_potential": 1.3, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 46, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 243, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1384.76, "space_heating_existing_dwelling": 5139.09 }, "draughtproofed_door_count": 2, "energy_consumption_current": 160, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 130, "environmental_impact_current": 80, "cfl_fixed_lighting_bulbs_count": 1, "current_energy_efficiency_band": "C", "environmental_impact_potential": 83, "led_fixed_lighting_bulbs_count": 5, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 27, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-99ad59aede2d": { "uprn": 100110200633, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-02-17 17:16:15", "door_count": 1, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10315 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 0.84, "window_height": 0.79, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 1.13, "window_height": 0.83, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.15, "window_height": 0.82, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.79, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.79, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-d34dd866a5f0", "assessment_type": "RdSAP", "completion_date": "2026-02-17", "inspection_date": "2026-02-17", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 2, "flat_location": 0, "heat_loss_corridor": 0 }, "total_floor_area": 52, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 2, "registration_date": "2026-02-17", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 500, "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.23, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 52.13, "quantity": "square metres" }, "party_wall_length": { "value": 15.33, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 16.41, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "D", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 407, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.4, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 38, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 360, "currency": "GBP" }, "hot_water_cost_current": { "value": 172, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 47, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 83 } ], "co2_emissions_potential": 1.3, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 38, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 172, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2185.96, "space_heating_existing_dwelling": 3465.88 }, "draughtproofed_door_count": 1, "energy_consumption_current": 151, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 135, "environmental_impact_current": 81, "current_energy_efficiency_band": "C", "environmental_impact_potential": 83, "led_fixed_lighting_bulbs_count": 6, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 27, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-e3d58f051858": { "uprn": 100110200624, "roofs": [ { "description": "Pitched, 300 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-10-06 10:23:28", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10315 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 0.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.6, "window_height": 0.85, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.7, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.6, "window_height": 0.4, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-8eb6f76ccc7c", "assessment_type": "RdSAP", "completion_date": "2025-10-06", "inspection_date": "2025-10-06", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 43, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-10-06", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 380, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.308, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 43.416, "quantity": "square metres" }, "party_wall_length": { "value": 16.2, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 10.72, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 541, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.2, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 36, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 474, "currency": "GBP" }, "hot_water_cost_current": { "value": 214, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 37, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 83 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a31,800 - \u00a32,400", 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"floor_construction": 1, "heat_loss_perimeter": { "value": 18.81, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "270mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 606, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 57, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 507, "currency": "GBP" }, "hot_water_cost_current": { "value": 105, "currency": "GBP" }, "mechanical_ventilation": 5, 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"NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 488, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.6, "energy_rating_average": 60, "energy_rating_current": 72, "lighting_cost_current": { "value": 57, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 432, "currency": "GBP" }, "hot_water_cost_current": { "value": 158, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 78 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"quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 18.796, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 535, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 49, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 481, "currency": "GBP" }, "hot_water_cost_current": { "value": 214, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 67, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 80 }, { "sequence": 2, "typical_saving": { "value": 16, "currency": "GBP" }, "indicative_cost": "\u00a360 - \u00a370", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 80 }, { "sequence": 3, "typical_saving": { "value": 194, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 82 } ], "co2_emissions_potential": 1.3, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 31, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 214, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1224.67, "space_heating_existing_dwelling": 5175.28 }, "draughtproofed_door_count": 0, "energy_consumption_current": 205, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0313", "energy_consumption_potential": 158, "environmental_impact_current": 78, "current_energy_efficiency_band": "C", "environmental_impact_potential": 82, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 35, "low_energy_fixed_lighting_bulbs_count": 3, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-26ebf40a3e3e": { "uprn": 100110200628, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-09-18 10:50:34", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10315 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.4, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.1, 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"energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-92f6d93f7834", "assessment_type": "RdSAP", "completion_date": "2025-09-18", "inspection_date": "2025-09-18", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 43, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-09-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.344, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 42.654, "quantity": "square metres" }, "party_wall_length": { "value": 5.3, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 13.348, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 541, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.2, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 44, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 458, "currency": "GBP" }, "hot_water_cost_current": { "value": 213, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 53, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 84 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a31,800 - \u00a32,400", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 85 }, { "sequence": 3, "typical_saving": { "value": 200, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 86 } ], "co2_emissions_potential": 0.9, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 44, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 213, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1216.85, "space_heating_existing_dwelling": 4101.17 }, "draughtproofed_door_count": 2, "energy_consumption_current": 178, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0312", "energy_consumption_potential": 127, 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lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-09-18 09:51:35", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10315 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.9, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.8, "window_height": 0.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.1, "window_height": 0.89, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.68, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-ef66256c8db4", "assessment_type": "RdSAP", "completion_date": "2025-09-18", "inspection_date": "2025-09-18", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 43, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-09-18", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 350, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.3, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 42.874, "quantity": "square metres" }, "party_wall_length": { "value": 16.004, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 10.716, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 533, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.2, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 55, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 468, "currency": "GBP" }, "hot_water_cost_current": { "value": 213, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 38, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 83 }, { "sequence": 2, "typical_saving": { "value": 17, "currency": "GBP" }, "indicative_cost": "\u00a360 - \u00a370", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 83 }, { "sequence": 3, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a31,800 - \u00a32,400", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 84 }, { "sequence": 4, "typical_saving": { "value": 200, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 86 } ], "co2_emissions_potential": 1.0, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 35, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 213, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1219.41, "space_heating_existing_dwelling": 4022.45 }, "draughtproofed_door_count": 2, "energy_consumption_current": 176, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0312", "energy_consumption_potential": 128, "environmental_impact_current": 82, "current_energy_efficiency_band": "C", "environmental_impact_potential": 86, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 28, "low_energy_fixed_lighting_bulbs_count": 3, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-56882ebd0316": { "uprn": 100110200625, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", 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"description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-4acf630d8ac0", "assessment_type": "RdSAP", "completion_date": "2025-09-09", "inspection_date": "2025-09-09", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 43, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-09-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.31, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 42.874, "quantity": "square metres" }, "party_wall_length": { "value": 16.004, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 10.716, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 457, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.3, "energy_rating_average": 60, "energy_rating_current": 72, "lighting_cost_current": { "value": 35, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 429, "currency": "GBP" }, "hot_water_cost_current": { "value": 213, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 83 }, { "sequence": 2, "typical_saving": { "value": 193, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 1.1, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 35, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 213, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1219.41, "space_heating_existing_dwelling": 4131.42 }, "draughtproofed_door_count": 2, "energy_consumption_current": 174, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0305", "energy_consumption_potential": 139, "environmental_impact_current": 81, "current_energy_efficiency_band": "C", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 30, "low_energy_fixed_lighting_bulbs_count": 5, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-efc398d437ed": { "uprn": 100110200634, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", 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2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 460, "floor_heat_loss": 6, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.338, "quantity": "metres" }, "total_floor_area": { "value": 46.684, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 24.268, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "100mm" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 460, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 4.874, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 4.576, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 423, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.4, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 40, "currency": "GBP" }, 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"main_heating_fraction": 1, "sap_main_heating_code": 104, "central_heating_pump_age": 0, "main_heating_data_source": 2 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.8, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.15, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.5, "draught_proofed": "true", "window_location": 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"draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.9, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-a05ba087d639", "assessment_type": "RdSAP", "completion_date": "2026-05-25", "inspection_date": "2026-05-23", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 72, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-05-25", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 36, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 9.6, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 36, "quantity": "square metres" }, "party_wall_length": { "value": 15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 9.6, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 889, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.6, "energy_rating_average": 60, "energy_rating_current": 70, "lighting_cost_current": { "value": 49, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 661, "currency": "GBP" }, "hot_water_cost_current": { "value": 166, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 75, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 170, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 76 }, { "sequence": 2, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 }, { "sequence": 3, "typical_saving": { "value": 199, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 49, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 166, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2000.52, "space_heating_existing_dwelling": 8912.76 }, "draughtproofed_door_count": 0, "energy_consumption_current": 201, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 137, "environmental_impact_current": 70, "current_energy_efficiency_band": "C", "environmental_impact_potential": 79, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 37, "low_energy_fixed_lighting_bulbs_count": 7, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-16a19953e3d5": { "uprn": 250010489, "roofs": [ { "description": { "value": "Average thermal transmittance 0.14 W/m\u00b2K", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": { "value": "Average thermal transmittance 0.15 W/m\u00b2K", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "floors": [ { "description": { "value": "Average thermal transmittance 0.18 W/m\u00b2K", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "status": "entered", "tenure": 1, "windows": { "description": { "value": "High performance glazing", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": { "value": "Excelent lighting efficiency", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "BA6 8TG", "data_type": 4, "hot_water": { "description": { "value": "From main system", "language": "1" }, "energy_efficiency_rating": 3, "environmental_efficiency_rating": 5 }, "post_town": "", "built_form": 1, "created_at": "2022-12-12 14:47:06", "living_area": 38.82, "orientation": 7, "region_code": 15, "report_type": 3, "sap_heating": { "number_baths": 1, "thermal_store": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_flow_rate": 7, "shower_outlet_type": 1 } ], "water_fuel_type": 39, "water_heating_code": 901, "hot_water_store_size": 115, "main_heating_details": [ { "has_fghrs": "false", "main_fuel_type": 39, "heat_emitter_type": 2, "main_heating_number": 1, "main_heating_control": 2207, "main_heating_category": 4, "main_heating_fraction": 1, "central_heating_pump_age": 2, "main_heating_data_source": 1, "main_heating_index_number": 102734, "heat_pump_heat_distribution": 55, "is_oil_pump_in_heated_space": "false", "underfloor_heat_emitter_type": 3, "is_main_heating_hetas_approved": "false", "is_central_heating_pump_in_heated_space": "true" } ], "has_hot_water_cylinder": "true", "has_cylinder_thermostat": "true", "hot_water_store_heat_loss": 1.65, "has_fixed_air_conditioning": "false", "secondary_heating_category": 1, "is_cylinder_in_heated_space": "true", "is_immersion_for_summer_use": "false", "primary_pipework_insulation": 4, "is_heat_pump_installed_to_mis": "false", "is_hot_water_separately_timed": "true", "hot_water_store_heat_loss_source": 2, "hot_water_store_heat_transfer_area": 0, "is_heat_pump_assisted_by_immersion": "false" }, "sap_version": 10.2, "schema_type": "SAP-Schema-19.0.0", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": { "value": "Air source heat pump, underfloor, electric", "language": "1" }, "energy_efficiency_rating": 4, "environmental_efficiency_rating": 5 } ], "sap_lighting": [ [ { "lighting_power": 6, "lighting_outlets": 7, "lighting_efficacy": 100 } ] ], "terrain_type": 2, "air_tightness": { "description": { "value": "(not tested)", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached bungalow", "language_code": 1, "property_type": 1, "address_line_1": "addr-21ea618caa06", "address_line_2": "", "address_line_3": "", "assessment_date": "2022-12-12", "assessment_type": "SAP", "completion_date": "2022-12-12", "inspection_date": "2022-12-12", "sap_ventilation": { "psv_count": 0, "wall_type": 1, "pressure_test": 3, "air_permeability": 15, "open_flues_count": 2, "ventilation_type": 1, "has_draught_lobby": "false", "other_flues_count": 0, "closed_flues_count": 0, "extract_fans_count": 0, "boilers_flues_count": 0, "open_chimneys_count": 0, "sheltered_sides_count": 0, "blocked_chimneys_count": 0, "flueless_gas_fires_count": 0, "is_mechanical_vent_approved_installer_scheme": "false" }, "sap_data_version": 10.2, "total_floor_area": 59, "transaction_type": 6, "cold_water_source": 1, "conservatory_type": 1, "registration_date": "2022-12-12", "sap_energy_source": { "electricity_tariff": 1 }, "sap_opening_types": [ { "name": "Windows", "type": 4, "u_value": 1.4, "data_source": 2, "frame_factor": 0.7, "glazing_type": 7, "isargonfilled": "false", "solar_transmittance": 0.63 }, { "name": "Doors:", "type": 2, "u_value": 1.4, "data_source": 2, "glazing_type": 7, "isargonfilled": "false" }, { "name": "Rooflights:", "type": 5, "u_value": 1.6, "data_source": 2, "frame_factor": 0.7, "glazing_type": 7, "isargonfilled": "false", "solar_transmittance": 0.63 } ], "secondary_heating": { "description": { "value": "None", "language": "1" }, "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "lowest_storey_area": 58.54, "lzc_energy_sources": [ 9 ], "sap_building_parts": [ { "sap_roofs": [ { "name": "Roof (1)", "u_value": 0.1, "roof_type": 2, "kappa_value": 9, "total_roof_area": 19.72 }, { "name": "Roof (2)", "u_value": 0.16, "roof_type": 2, "kappa_value": 9, "total_roof_area": 50.68 } ], "sap_walls": [ { "name": "Walls (1)", "u_value": 0.13, "wall_type": 2, "kappa_value": 9, "total_wall_area": 60.07, "is_curtain_walling": "false" }, { "name": "Walls (2)", "u_value": 0.17, "wall_type": 2, "kappa_value": 9, "total_wall_area": 30.79, "is_curtain_walling": "false" }, { "name": "Internal Wall (1)", "u_value": 0, "wall_type": 5, "kappa_value": 9, "total_wall_area": 77.18, "is_curtain_walling": "false" } ], "identifier": "Main Dwelling", "sap_openings": [ { "name": "W1", "type": "Windows", "width": 2.4, "height": 1.19, "location": "Walls (1)", "orientation": 7 }, { "name": "W2", "type": "Windows", "width": 1.77, "height": 1.19, "location": "Walls (1)", "orientation": 7 }, { "name": "W3", "type": "Windows", "width": 0.6, "height": 1.05, "location": "Walls (1)", "orientation": 1 }, { "name": "W4", "type": "Windows", "width": 1.05, "height": 1, "location": "Walls (1)", "orientation": 3 }, { "name": "W5", "type": "Windows", "width": 0.6, "height": 1, "location": "Walls (1)", "orientation": 3 }, { "name": "W6", "type": "Windows", "width": 12.86, "height": 1, "location": "Walls (1)", "orientation": 5 }, { "name": "D1", "type": "Doors:", "width": 1.79, "height": 2.09, "location": "Walls (1)", "orientation": 7 }, { "name": "RL - West", "type": "Rooflights:", "pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 7 }, { "name": "RL - West", "type": "Rooflights:", "pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 7 }, { "name": "RL - East", "type": "Rooflights:", "pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 3 }, { "name": "RL - East", "type": "Rooflights:", "pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 3 }, { "name": "RL - East", "type": "Rooflights:", "pitch": 45, "width": 0.78, "height": 0.98, "location": "Roof (2)", "orientation": 3 } ], "construction_year": 2022, "sap_thermal_bridges": { "thermal_bridge_code": 1 }, "building_part_number": 1, "sap_floor_dimensions": [ { "storey": 0, "u_value": 0.18, "floor_type": 2, "kappa_value": 110, "storey_height": 3.56, "heat_loss_area": 58.54, "total_floor_area": 58.54 } ] } ], "user_interface_name": "Design SAP 10", "windows_overshading": 2, "heating_cost_current": { "value": 399, "currency": "GBP" }, "co2_emissions_current": 0.6, "energy_rating_average": 60, "energy_rating_current": 60, "lighting_cost_current": { "value": 27, "currency": "GBP" }, "main_heating_controls": [ { "description": { "value": "Time and temperature zone control", "language": "1" }, "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 413, "currency": "GBP" }, "hot_water_cost_current": { "value": 236, "currency": "GBP" }, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 63, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a36,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 92 }, { "sequence": 2, "typical_saving": { "value": 218, "currency": "GBP" }, "indicative_cost": "\u00a33,500 - \u00a35,500", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 94 } ], "user_interface_version": "2.1.6", "co2_emissions_potential": 0.4, "energy_rating_potential": 70, "gas_smart_meter_present": "false", "lighting_cost_potential": { "value": 27, "currency": "GBP" }, "schema_version_original": "SAP-Schema-19.0.0", "hot_water_cost_potential": { "value": 159, "currency": "GBP" }, "is_in_smoke_control_area": "unknown", "seller_commission_report": "Y", "energy_consumption_current": 100, "has_fixed_air_conditioning": "false", "is_dwelling_export_capable": "false", "multiple_glazed_percentage": 100, "calculation_software_version": "2.1.6", "energy_consumption_potential": 68, "environmental_impact_current": 92, "current_energy_efficiency_band": "D", "environmental_impact_potential": 94, "electricity_smart_meter_present": "false", "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 9.6 }, "cert-315006d41512": { "uprn": 22137593, "roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Single glazed", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "BN3 1HG", "hot_water": { "description": "From main system", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "post_town": "", "built_form": "NR", "created_at": "2025-12-19 11:01:02", "door_count": 0, "region_code": 14, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": "NA", "main_heating_number": 1, "main_heating_control": 2104, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 8575 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 0, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.25, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.1, "window_height": 1.2, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 5, "window_width": 1.2, "window_height": 1.2, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-24fe9f95ec4d", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-12-19", "inspection_date": "2025-12-19", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 5, "flat_location": 4, "heat_loss_corridor": 2, "unheated_corridor_length": 3.28 }, "total_floor_area": 58, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-12-19", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 6, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.41, "quantity": "metres" }, "total_floor_area": { "value": 58.34, "quantity": "square metres" }, "party_wall_length": { "value": 22.31, "quantity": "metres" }, "heat_loss_perimeter": { "value": 14.57, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "sap_alternative_wall_1": { "wall_area": 7.9048, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 190, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 506, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.7, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 44, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer and room thermostat", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 260, "currency": "GBP" }, "hot_water_cost_current": { "value": 481, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 76, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 66 }, { "sequence": 2, "typical_saving": { "value": 112, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 188, "currency": "GBP" }, "indicative_cost": "\u00a320 - \u00a340", "improvement_type": "C", "improvement_details": { "improvement_number": 1 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 79 }, { "sequence": 4, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 80 }, { "sequence": 5, "typical_saving": { "value": 73, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,500", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 83 }, { "sequence": 6, "typical_saving": { "value": 58, "currency": "GBP" }, "indicative_cost": "\u00a34,500 - \u00a36,000", "improvement_type": "O", "improvement_details": { "improvement_number": 8 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 86 } ], "co2_emissions_potential": 1.0, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 45, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 196, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 5295.77, "space_heating_existing_dwelling": 4294.66 }, "draughtproofed_door_count": 0, "energy_consumption_current": 256, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 0, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 99, "environmental_impact_current": 63, "current_energy_efficiency_band": "D", "environmental_impact_potential": 86, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 47, "low_energy_fixed_lighting_bulbs_count": 6, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-91f132d1c9c8": { "uprn": 100110692634, "roofs": [ { "description": "Pitched, insulated (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Sandstone, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "(another dwelling below)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Full secondary glazing", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "CA11 8BJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-06-22 15:25:26", "door_count": 0, "region_code": 9, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2107, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 17505 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 0.6, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 5, "window_type": 1, "glazing_type": 4, "window_width": 1, "window_height": 1.7, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Top-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-a4d46822dc0e", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-06-22", "inspection_date": "2026-06-22", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 3, "top_storey": "Y", "storey_count": 2, "flat_location": 1, "heat_loss_corridor": 1 }, "total_floor_area": 151, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 4, "registration_date": "2026-06-22", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 3, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 600, "floor_heat_loss": 6, "roof_construction": 4, "wall_construction": 2, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 3.52, "quantity": "metres" }, "total_floor_area": { "value": 150.9, "quantity": "square metres" }, "party_wall_length": { "value": 10.35, "quantity": "metres" }, "heat_loss_perimeter": { "value": 47.39, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 2246, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 6.7, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 158, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, TRVs and bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "blocked_chimneys_count": 2, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1428, "currency": "GBP" }, "hot_water_cost_current": { "value": 216, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 745, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 73 }, { "sequence": 2, "typical_saving": { "value": 64, "currency": "GBP" }, "indicative_cost": "\u00a3300 - \u00a3350", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 73 }, { "sequence": 3, "typical_saving": { "value": 85, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 74 } ], "co2_emissions_potential": 4.3, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 82, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 216, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2597.55, "space_heating_existing_dwelling": 23921.56 }, "draughtproofed_door_count": 0, "energy_consumption_current": 243, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.04r0013", "energy_consumption_potential": 157, "environmental_impact_current": 60, "cfl_fixed_lighting_bulbs_count": 8, "current_energy_efficiency_band": "D", "environmental_impact_potential": 74, "led_fixed_lighting_bulbs_count": 2, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 44, "incandescent_fixed_lighting_bulbs_count": 10 }, "cert-3b34c5bd2620": { "uprn": 100100581213, "roofs": [ { "description": "Pitched, 300 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CF47 9BN", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-03-20 12:31:23", "door_count": 2, "region_code": 12, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10244 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 2.21, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.81, "window_height": 1.31, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 0.78, "window_height": 1.2, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.26, "window_height": 0.42, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.34, "window_height": 0.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.19, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.24, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.82, "window_height": 1.28, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 2.21, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 1.28, "window_height": 1.08, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "WLS", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-1ff696506542", "assessment_type": "RdSAP", "completion_date": "2026-03-20", "inspection_date": "2026-03-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 102, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2026-03-20", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.23, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 102.45, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 48.06, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 1088, "currency": "GBP" }, "insulated_door_count": 1, "co2_emissions_current": 3.5, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 65, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 942, "currency": "GBP" }, "hot_water_cost_current": { "value": 329, "currency": "GBP" }, "insulated_door_u_value": 1.1, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 146, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 75 }, { "sequence": 2, "typical_saving": { "value": 250, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 76 } ], "co2_emissions_potential": 2.9, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 65, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 329, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2101.73, "space_heating_existing_dwelling": 12676.64 }, "draughtproofed_door_count": 2, "energy_consumption_current": 192, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0335", "energy_consumption_potential": 155, "environmental_impact_current": 71, "current_energy_efficiency_band": "C", "environmental_impact_potential": 76, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 34, "low_energy_fixed_lighting_bulbs_count": 14, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-da456d572f14": { "uprn": 100020584258, "roofs": [ { "description": "Pitched, 75 mm loft insulation", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "CR0 8AJ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-11-30 22:57:05", "door_count": 1, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16842 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 2, "window_height": 1.5, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 2, "window_height": 1.5, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1, "window_height": 1.3, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.5, "window_height": 1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.5, "window_height": 1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.5, "window_height": 1, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.5, "window_height": 2.5, "draught_proofed": "false", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-964cacfc57dc", "assessment_type": "RdSAP", "completion_date": "2025-11-30", "inspection_date": "2025-11-27", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 119, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2025-11-30", "sap_energy_source": { "mains_gas": "Y", "meter_type": 3, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 220, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.5, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 59.5, "quantity": "square metres" }, "party_wall_length": { "value": 8.5, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 22.5, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.5, "quantity": "metres" }, "total_floor_area": { "value": 59.5, "quantity": "square metres" }, "party_wall_length": { "value": 8.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 22.5, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "A", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "75mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 1262, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.2, "energy_rating_average": 60, "energy_rating_current": 65, "lighting_cost_current": { "value": 72, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 696, "currency": "GBP" }, "hot_water_cost_current": { "value": 179, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 52, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A", "improvement_details": { "improvement_number": 5 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 61 }, { "sequence": 2, "typical_saving": { "value": 388, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 72 }, { "sequence": 3, "typical_saving": { "value": 93, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 75 }, { "sequence": 4, "typical_saving": { "value": 33, "currency": "GBP" }, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": { "improvement_number": 10 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 77 }, { "sequence": 5, "typical_saving": { "value": 241, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.3, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 72, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 179, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2406.9, "space_heating_existing_dwelling": 15065.23 }, "draughtproofed_door_count": 0, "energy_consumption_current": 193, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 100, "environmental_impact_current": 60, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 35, "low_energy_fixed_lighting_bulbs_count": 15, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-c31a86e3d519": { "uprn": 100110363175, "roofs": [ { "description": "Pitched, 175 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "DH2 2BP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2026-02-16 06:16:13", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 15706 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.19, "window_height": 1.47, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.01, "window_height": 0.98, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.32, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-b489854caecd", "assessment_type": "RdSAP", "completion_date": "2026-02-16", "inspection_date": "2025-11-19", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 78, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-02-16", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 280, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.49, "quantity": "metres" }, "total_floor_area": { "value": 39.06, "quantity": "square metres" }, "party_wall_length": { "value": 12.55, "quantity": "metres" }, "heat_loss_perimeter": { "value": 12.55, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": 1, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "175mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 655, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.3, "energy_rating_average": 60, "energy_rating_current": 74, "lighting_cost_current": { "value": 51, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 600, "currency": "GBP" }, "hot_water_cost_current": { "value": 198, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 55, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 77 }, { "sequence": 2, "typical_saving": { "value": 206, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 51, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 198, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2551.48, "space_heating_existing_dwelling": 6821.92 }, "draughtproofed_door_count": 2, "energy_consumption_current": 162, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0332", "energy_consumption_potential": 136, "environmental_impact_current": 74, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 10, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 29, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-7f5b7a938747": { "uprn": 90003987, "roofs": [ { "description": "Pitched, 150 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "DY1 2PN", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-09-23 15:57:11", "door_count": 1, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18737 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": 12, "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.15, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.15, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 3, "window_type": 1, "glazing_type": 3, "window_width": 0.58, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 1.15, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.58, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.71, "window_height": 2.09, "draught_proofed": 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"2025-09-23", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 66, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2025-09-23", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.37, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 32.92, "quantity": "square metres" }, "party_wall_length": { "value": 7.45, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 16.29, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.37, "quantity": "metres" }, "total_floor_area": { "value": 32.91, "quantity": "square metres" }, "party_wall_length": { "value": 7.45, "quantity": "metres" }, "heat_loss_perimeter": { "value": 16.29, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "H", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "150mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 631, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.0, "energy_rating_average": 60, "energy_rating_current": 74, "lighting_cost_current": { "value": 50, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 581, "currency": "GBP" }, "hot_water_cost_current": { "value": 142, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 50, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 77 }, { "sequence": 2, "typical_saving": { "value": 201, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 1.8, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 50, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 142, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1903.13, "space_heating_existing_dwelling": 6504.76 }, "draughtproofed_door_count": 1, "energy_consumption_current": 171, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0313", "energy_consumption_potential": 142, "environmental_impact_current": 75, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 31, "low_energy_fixed_lighting_bulbs_count": 9, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-6755e9e94e49": { "uprn": 148041111, "roofs": [ { "description": "(another dwelling above)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Solid brick, as built, partial insulation (assumed)", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "EN7 5DR", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, 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"orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.5, "window_height": 1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.6, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Ground-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-0618b6c54ef1", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-03-09", "inspection_date": "2026-03-09", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 1, "top_storey": "N", "storey_count": 2, "flat_location": 0, "heat_loss_corridor": 2, "unheated_corridor_length": 7.9 }, "total_floor_area": 46, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-03-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "floor_heat_loss": 7, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.57, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 45.62, "quantity": "square metres" }, "party_wall_length": { "value": 4.2, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 30.8, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "sap_alternative_wall_1": { "wall_area": 20.303, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "N", 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"indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": { "value": 98, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 75, "environmental_impact_rating": 79 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 75, "lighting_cost_potential": { "value": 39, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 161, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1943.61, "space_heating_existing_dwelling": 7678.47 }, "draughtproofed_door_count": 0, "energy_consumption_current": 296, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, 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"environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "stone_walls": "true" }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "GL16 7JD", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 2, "created_at": "2025-09-24 11:31:24", "door_count": 2, "region_code": 12, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 9, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 19095 } ], "immersion_heating_type": "NA", "secondary_heating_type": 633, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 0.8, "window_height": 1.43, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.98, "window_height": 1.16, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.94, "window_height": 0.88, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 0.51, "window_height": 1.26, "draught_proofed": "true", "window_location": 2, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 0.97, "window_height": 1.45, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.55, "window_height": 1.18, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.91, "window_height": 0.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Semi-detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-ac278115b6f5", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-09-24", "inspection_date": "2025-09-23", "extensions_count": 2, "measurement_type": 1, "total_floor_area": 70, "transaction_type": 1, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 4, "registration_date": "2025-09-24", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, dual fuel (mineral and wood)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 520, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 2, 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"description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "closed_flues_count": 0, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.39, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 45.38, "quantity": "square metres" }, "party_wall_length": { "value": 10.28, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 17.66, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.46, "quantity": "metres" }, "total_floor_area": { "value": 45.38, "quantity": "square metres" }, "party_wall_length": { "value": 10.28, "quantity": "metres" }, "heat_loss_perimeter": { "value": 17.66, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "D", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm" } ], "boilers_flues_count": 0, "open_chimneys_count": 0, "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 888, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.8, "energy_rating_average": 60, "energy_rating_current": 73, "lighting_cost_current": { "value": 54, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "blocked_chimneys_count": 0, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 832, "currency": "GBP" }, "hot_water_cost_current": { "value": 230, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": 56, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 74, "environmental_impact_rating": 74 }, { "sequence": 2, "typical_saving": 219, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 75 } ], "co2_emissions_potential": 2.6, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 54, "currency": "GBP" }, "schema_version_original": "LIG-21.0.1", "flueless_gas_fires_count": 0, "hot_water_cost_potential": { "value": 230, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2657.26, "space_heating_existing_dwelling": 8886.1 }, "draughtproofed_door_count": 2, "energy_consumption_current": 170, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, 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"extensions_count": 0, "measurement_type": 1, "total_floor_area": 51, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2026-06-23", "sap_energy_source": { "mains_gas": "N", "meter_type": 4, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Portable electric heaters (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.29, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 25.48, "quantity": "square metres" }, "party_wall_length": { "value": 13.5, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 5.98, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.29, "quantity": "metres" }, "total_floor_area": { "value": 25.48, "quantity": "square metres" }, "party_wall_length": { "value": 13.5, "quantity": "metres" }, "heat_loss_perimeter": { "value": 5.98, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "I", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "400mm+", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 1080, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.0, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": { "value": 39, "currency": "GBP" }, "main_heating_controls": [ { "description": "Manual charge control", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 1091, "currency": "GBP" }, "hot_water_cost_current": { "value": 470, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 90, "currency": "GBP" }, "indicative_cost": "\u00a34,000 - \u00a37,000", "improvement_type": "N", "improvement_details": { "improvement_number": 19 }, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 87 }, { "sequence": 2, "typical_saving": { "value": 57, "currency": "GBP" }, "indicative_cost": "\u00a3600 - \u00a31,500", "improvement_type": "Y", "improvement_details": { "improvement_number": 49 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 87 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"N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": { "value": 1, "quantity": "m" }, "window_height": { "value": 1, "quantity": "m" }, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-f2b9c7778b74", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2025-11-23", "inspection_date": "2025-11-21", 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"window_width": 0.44, "window_height": 1.14, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-a893c0b1760a", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-02-02", "inspection_date": "2026-02-02", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 5, "flat_location": 2, "heat_loss_corridor": 0 }, "total_floor_area": 36, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 2, "registration_date": "2026-02-02", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 1, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "total_floor_area": { "value": 36.09, "quantity": "square metres" }, "party_wall_length": { "value": 4.97, "quantity": "metres" }, "heat_loss_perimeter": { "value": 21.03, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 416, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.3, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 27, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 245, "currency": "GBP" }, "hot_water_cost_current": { "value": 138, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 139, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 83 }, { "sequence": 2, "typical_saving": { "value": 30, "currency": "GBP" }, "indicative_cost": "\u00a32,700 - \u00a33,600", "improvement_type": "X", "improvement_details": { "improvement_number": 48 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 85 } ], "co2_emissions_potential": 0.8, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 27, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 140, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1777.46, "space_heating_existing_dwelling": 3611.81 }, "draughtproofed_door_count": 3, 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"tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "cavity_fill_recommended": "true" }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "N22 6AA", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2026-04-15 22:02:44", "door_count": 0, "region_code": 17, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2113, "main_heating_category": 2, "main_heating_fraction": 1, 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"electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 6, "roof_construction": 5, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.35, "quantity": "metres" }, "total_floor_area": { "value": 77.01, "quantity": "square metres" }, "party_wall_length": { "value": 30.2, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.2, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "ND", "wall_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": { "value": 465, "currency": "GBP" }, 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"schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 21, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 81, "environmental_impact_rating": 85 } ], "hot_water_cost_potential": { "value": 198, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2375.83, "space_heating_existing_dwelling": 3807.25 }, "draughtproofed_door_count": 0, "energy_consumption_current": 110, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0342", "energy_consumption_potential": 95, "environmental_impact_current": 81, "current_energy_efficiency_band": "C", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 20, "low_energy_fixed_lighting_bulbs_count": 12, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-b4885e7e27a8": { "uprn": 100030064387, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, { "description": "Flat, limited insulation", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1 }, { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "postcode": "NG19 7PE", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-04-24 17:39:04", "door_count": 2, "region_code": 3, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16930 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": 12, "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 2.41, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.61, "window_height": 1.33, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 8, "window_type": 1, "glazing_type": 3, "window_width": 0.61, "window_height": 1.33, "draught_proofed": "true", 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12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.72, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 2.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.2, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-2967e7923088", "address_line_2": "", "address_line_3": "", "assessment_type": "RdSAP", "completion_date": "2026-04-24", "inspection_date": "2026-04-17", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 74, "transaction_type": 1, "conservatory_type": 3, "heated_room_count": 3, "registration_date": "2026-04-24", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 1, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 250, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.32, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 59.12, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 27.29, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 290, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.46, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 14.65, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 11.07, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "F", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 1353, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.1, "energy_rating_average": 60, "energy_rating_current": 56, "lighting_cost_current": { "value": 76, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 906, "currency": "GBP" }, "hot_water_cost_current": { "value": 277, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 82, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 271, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 63, "environmental_impact_rating": 72 }, { "sequence": 2, "typical_saving": { "value": 137, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 76 }, { "sequence": 3, "typical_saving": { "value": 43, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 67, "environmental_impact_rating": 77 }, { "sequence": 4, "typical_saving": { "value": 23, "currency": "GBP" }, "indicative_cost": "\u00a390 - \u00a3105", "improvement_type": "E", "improvement_details": { "improvement_number": 35 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 77 }, { "sequence": 5, "typical_saving": { "value": 229, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 1.9, "energy_rating_potential": 73, "lighting_cost_potential": { "value": 48, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 277, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1574.88, "space_heating_existing_dwelling": 11752.86 }, "draughtproofed_door_count": 0, "energy_consumption_current": 247, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0342", "energy_consumption_potential": 151, "environmental_impact_current": 65, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 6, "has_heated_separate_conservatory": "true", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 42, "incandescent_fixed_lighting_bulbs_count": 3 }, "cert-d736e6a710a5": { "uprn": 100031058654, "roofs": [ { "description": "Pitched, 300 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "walls": [ { "description": "Cavity wall, filled cavity", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 3, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "NN15 5BT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-07-17 05:02:08", "door_count": 0, "region_code": 6, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16136 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.35, "window_height": 1.8, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 5, "window_type": 1, "glazing_type": 3, "window_width": 1.02, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", 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"glazing_type": 3, "window_width": 1.35, "window_height": 1.21, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 1, "window_type": 1, "glazing_type": 3, "window_width": 1.03, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-5949f6cd189b", "assessment_type": "RdSAP", "completion_date": "2025-07-17", "inspection_date": "2025-07-16", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 71, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-07-17", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.51, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.32, "quantity": "square metres" }, "party_wall_length": { "value": 14.15, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 8.33, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.47, "quantity": "metres" }, "total_floor_area": { "value": 34.32, "quantity": "square metres" }, "party_wall_length": { "value": 14.15, "quantity": "metres" }, "heat_loss_perimeter": { "value": 10.01, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "F", "party_wall_construction": 2, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "300mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": 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"environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 626, "currency": "GBP" }, "hot_water_cost_current": { "value": 172, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 211, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 76 } ], "co2_emissions_potential": 2.0, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 45, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 172, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2310.09, "space_heating_existing_dwelling": 6426.93 }, "draughtproofed_door_count": 0, "energy_consumption_current": 165, 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"energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 }, "lighting": { "description": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 }, "postcode": "NP4 6TQ", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": "NR", "created_at": "2025-11-14 08:09:21", "door_count": 1, "region_code": 12, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 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"permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": 12, "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 1.05, "window_height": 1.22, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "WLS", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-floor flat", "language_code": 1, "pressure_test": 4, "property_type": 2, "address_line_1": "addr-5aaeeb968ff0", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-11-14", "inspection_date": "2025-11-13", "extensions_count": 0, "measurement_type": 1, "sap_flat_details": { "level": 2, "top_storey": "N", "storey_count": 4, "flat_location": 1, "heat_loss_corridor": 2, "unheated_corridor_length": 5.38 }, "total_floor_area": 52, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 3, "registration_date": "2025-11-14", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 420, "floor_heat_loss": 6, "roof_construction": 3, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.36, "quantity": "metres" }, "total_floor_area": { "value": 52.29, "quantity": "square metres" }, "party_wall_length": { "value": 9.47, "quantity": "metres" }, "heat_loss_perimeter": { "value": 36.52, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "D", "sap_alternative_wall_1": { "wall_area": 12.6968, "sheltered_wall": "Y", "wall_dry_lined": "N", "wall_thickness": 130, "wall_construction": 3, "wall_insulation_type": 4, "wall_thickness_measured": "Y", "wall_insulation_thickness": "NI" }, "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": "ND", "roof_insulation_thickness": "ND", "wall_insulation_thickness": "50mm" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 475, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.5, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 36, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 441, "currency": "GBP" }, "hot_water_cost_current": { "value": 129, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 34, "currency": "GBP" }, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": { "improvement_number": 7 }, "improvement_category": 5, "energy_performance_rating": 78, "environmental_impact_rating": 82 } ], "co2_emissions_potential": 1.4, "energy_rating_potential": 78, "lighting_cost_potential": { "value": 36, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 129, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1631.9, "space_heating_existing_dwelling": 4412.05 }, "draughtproofed_door_count": 1, "energy_consumption_current": 158, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0328", "energy_consumption_potential": 147, "environmental_impact_current": 80, "current_energy_efficiency_band": "C", "environmental_impact_potential": 82, "led_fixed_lighting_bulbs_count": 6, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 29, "incandescent_fixed_lighting_bulbs_count": 0 }, "cert-541c8557f33b": { "uprn": 422000092972, "roofs": [ { "description": "Pitched, 250 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "Solid brick, as built, no insulation (assumed)", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2 } ], "floors": [ { "description": "Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "OL8 1TT", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 3, "created_at": "2025-09-07 09:15:22", "door_count": 2, "region_code": 19, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 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"permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "End-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-fbb06de8770d", "assessment_type": "RdSAP", "completion_date": "2025-09-07", "inspection_date": "2025-09-04", "extensions_count": 0, "measurement_type": 2, "total_floor_area": 108, "transaction_type": 8, "conservatory_type": 1, "heated_room_count": 3, "registration_date": "2025-09-07", "sap_energy_source": { "mains_gas": "Y", "meter_type": 1, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "Y", "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 60, "quantity": "square metres" }, "party_wall_length": { "value": 10, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 22, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.4, "quantity": "metres" }, "total_floor_area": { "value": 60, "quantity": "square metres" }, "party_wall_length": { "value": 10, "quantity": "metres" }, "heat_loss_perimeter": { "value": 22, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "B", "party_wall_construction": 0, "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": { "value": 1214, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 4.1, "energy_rating_average": 60, "energy_rating_current": 67, "lighting_cost_current": { "value": 104, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 736, "currency": "GBP" }, "hot_water_cost_current": { "value": 214, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 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"indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 81, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 2.5, "energy_rating_potential": 81, "lighting_cost_potential": { "value": 104, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 215, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2620.96, "space_heating_existing_dwelling": 13564.63 }, "draughtproofed_door_count": 0, "energy_consumption_current": 209, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "sap_deselected_improvements": [ "X" ], "calculation_software_version": "5.02r0305", "energy_consumption_potential": 123, "environmental_impact_current": 63, "current_energy_efficiency_band": "D", "environmental_impact_potential": 78, "has_heated_separate_conservatory": "false", 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"description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-03-09 16:11:50", "door_count": 2, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 2, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 16399 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.5, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.1, "window_height": 1.45, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 1.4, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 6, "window_type": 1, "glazing_type": 3, "window_width": 0.55, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 2, "window_type": 1, "glazing_type": 3, "window_width": 0.55, "window_height": 1.25, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "glazing_gap": "16+", "orientation": 4, "window_type": 1, "glazing_type": 3, "window_width": 0.45, "window_height": 0.45, "draught_proofed": "true", 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"window_height": 1.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-81b07b1b4332", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-03-09", "inspection_date": "2026-03-09", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 118, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 6, "registration_date": "2026-03-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 310, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.42, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 59.59, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 31.86, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.42, "quantity": "metres" }, "total_floor_area": { "value": 58.75, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 30.66, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "J", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "250mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 6, "heating_cost_current": { "value": 776, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.8, "energy_rating_average": 60, "energy_rating_current": 76, "lighting_cost_current": { "value": 72, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "true", "heating_cost_potential": { "value": 776, "currency": "GBP" }, "hot_water_cost_current": { "value": 235, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 241, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.7, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 72, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 235, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 3017.46, "space_heating_existing_dwelling": 8466.59 }, "draughtproofed_door_count": 2, "energy_consumption_current": 131, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, 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"Suspended, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "Suspended, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "High performance glazing", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "PO20 1PE", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2025-07-15 18:35:44", "door_count": 2, "region_code": 14, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "secondary_fuel_type": 29, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 4, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2110, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 18619 } ], "immersion_heating_type": "NA", "secondary_heating_type": 691, "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "orientation": 5, "window_type": 1, "glazing_type": 13, "window_width": 1.74, "window_height": 1.19, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 0.88, "window_height": 0.68, "draught_proofed": "true", "window_location": 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"window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 1, "window_type": 1, "glazing_type": 13, "window_width": 1.92, "window_height": 1.17, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-c69fb77a21b3", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2025-07-15", "inspection_date": "2025-07-15", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 103, "transaction_type": 1, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-07-15", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "true", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "true" }, "secondary_heating": { "description": "Room heaters, electric", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.45, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 45.13, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 22.86, "quantity": "metres" } }, { "floor": 1, "room_height": { "value": 2.29, "quantity": "metres" }, "total_floor_area": { "value": 38.37, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "heat_loss_perimeter": { "value": 25.57, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "F", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "100mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI" }, { "identifier": "Extension 1", "wall_dry_lined": "N", "wall_thickness": 300, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 2, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.44, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 19.58, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.58, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 5, "heating_cost_current": { "value": 903, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 2.5, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": { "value": 85, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 830, "currency": "GBP" }, "hot_water_cost_current": { "value": 181, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 72, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 72, "environmental_impact_rating": 76 }, { "sequence": 2, "typical_saving": { "value": 263, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 77 } ], "co2_emissions_potential": 2.2, "energy_rating_potential": 77, "lighting_cost_potential": { "value": 85, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 181, "currency": 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"Cavity wall, as built, insulated (assumed)", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, { "description": "To unheated space, insulated (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 1, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "addendum": { "addendum_numbers": [ 15 ] }, "lighting": { "description": "Below average lighting efficiency", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "postcode": "RM13 9JU", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 1, "created_at": "2026-06-21 21:15:01", "door_count": 1, "region_code": 2, "report_type": 2, "sap_heating": { "number_baths": 1, "cylinder_size": 3, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 1 }, { "shower_wwhrs": 1, "shower_outlet_type": 1 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 19229 } ], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 50 }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 2.1, "window_height": 1.65, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 2.1, "window_height": 1.55, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 3, "window_type": 1, "glazing_type": 2, "window_width": 2.1, "window_height": 1.55, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 2.1, "window_height": 1.55, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 7, "window_type": 1, "glazing_type": 2, "window_width": 2.1, 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"orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.9, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 5, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.9, "window_height": 1.02, "draught_proofed": "true", "window_location": 0, "window_wall_type": 5, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Detached house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": 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"permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 0.56, "window_height": 0.92, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.66, "window_height": 0.92, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 7, "window_type": 1, "glazing_type": 13, "window_width": 1.66, "window_height": 0.92, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "orientation": 3, "window_type": 1, "glazing_type": 13, "window_width": 1.78, "window_height": 1.14, "draught_proofed": "true", "window_location": 1, "window_wall_type": 1, 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"transaction_type": 8, "conservatory_type": 1, "heated_room_count": 9, "registration_date": "2026-04-27", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "Room heaters, dual fuel (mineral and wood)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 330, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 34.14, "quantity": "square 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"quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 30.24, "quantity": "square metres" }, "party_wall_length": { "value": 3.36, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 12.36, "quantity": "metres" } } ], "wall_insulation_type": 4, "construction_age_band": "L", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 7, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "sloping_ceiling_insulation_thickness": "AB" }, { "identifier": "Extension 3", "wall_dry_lined": "N", "wall_thickness": 330, "floor_heat_loss": 7, "roof_construction": 1, "wall_construction": 4, "building_part_number": 4, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.4, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 0.83, "quantity": "square metres" }, "party_wall_length": { "value": 0, "quantity": "metres" }, "floor_construction": 2, "heat_loss_perimeter": { "value": 2.65, "quantity": "metres" } } ], "wall_insulation_type": 2, "construction_age_band": "C", "party_wall_construction": "NA", "wall_thickness_measured": "Y", "roof_insulation_location": 6, "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI", "flat_roof_insulation_thickness": "AB" } ], "solar_water_heating": "N", "habitable_room_count": 9, "heating_cost_current": { "value": 1105, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 3.2, "energy_rating_average": 60, "energy_rating_current": 77, "lighting_cost_current": { "value": 71, "currency": "GBP" }, "main_heating_controls": [ { "description": "Time and temperature zone control", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 1105, "currency": "GBP" }, "hot_water_cost_current": { "value": 220, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 228, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 80, "environmental_impact_rating": 78 } ], "co2_emissions_potential": 3.1, "energy_rating_potential": 80, "lighting_cost_potential": { "value": 71, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 220, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2638.43, "space_heating_existing_dwelling": 10827.93 }, "draughtproofed_door_count": 1, "energy_consumption_current": 127, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0344", "energy_consumption_potential": 119, "environmental_impact_current": 77, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, 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"environmental_efficiency_rating": 0 }, "dwelling_type": "End-terrace house", "language_code": 1, "pressure_test": 4, "property_type": 0, "address_line_1": "addr-93dd833e9f69", "assessment_type": "RdSAP", "completion_date": "2025-08-05", "inspection_date": "2025-08-04", "extensions_count": 3, "measurement_type": 2, "open_flues_count": 1, "total_floor_area": 96, "transaction_type": 15, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2025-08-05", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "extract_fans_count": 2, "sap_building_parts": [ { "identifier": "Main 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bypass", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 } ], "blocked_chimneys_count": 3, "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 792, "currency": "GBP" }, "hot_water_cost_current": { "value": 236, "currency": "GBP" }, "mechanical_ventilation": 0, "percent_draughtproofed": 83, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 65, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,200", "improvement_type": "A2", "improvement_details": { "improvement_number": 45 }, "improvement_category": 5, "energy_performance_rating": 57, "environmental_impact_rating": 51 }, { "sequence": 2, "typical_saving": { "value": 294, "currency": "GBP" }, "indicative_cost": "\u00a3900 - \u00a31,500", "improvement_type": "B", "improvement_details": { "improvement_number": 6 }, "improvement_category": 5, "energy_performance_rating": 64, "environmental_impact_rating": 60 }, { "sequence": 3, "typical_saving": { "value": 79, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W1", "improvement_details": { "improvement_number": 57 }, "improvement_category": 5, "energy_performance_rating": 66, "environmental_impact_rating": 63 }, { "sequence": 4, "typical_saving": { "value": 59, "currency": "GBP" }, "indicative_cost": "\u00a3220 - \u00a3250", "improvement_type": "G", "improvement_details": { "improvement_number": 14 }, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 65 }, { "sequence": 5, "typical_saving": { "value": 152, "currency": "GBP" }, "indicative_cost": "\u00a32,200 - \u00a33,500", "improvement_type": "I", "improvement_details": { "improvement_number": 20 }, "improvement_category": 5, "energy_performance_rating": 71, "environmental_impact_rating": 70 }, { "sequence": 6, "typical_saving": { "value": 239, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 71 } ], "co2_emissions_potential": 2.6, "energy_rating_potential": 76, "lighting_cost_potential": { "value": 73, "currency": "GBP" }, "schema_version_original": "21.0.1", "alternative_improvements": [ { "sequence": 1, "typical_saving": { "value": 84, "currency": "GBP" }, "improvement_type": "Q2", "improvement_details": { "improvement_number": 55 }, "improvement_category": 6, "energy_performance_rating": 66, "environmental_impact_rating": 63 }, { "sequence": 2, "typical_saving": { "value": 85, "currency": "GBP" }, "improvement_type": "J2", "improvement_details": { "improvement_number": 54 }, "improvement_category": 6, "energy_performance_rating": 67, "environmental_impact_rating": 95 }, { "sequence": 3, "typical_saving": { "value": 21, "currency": "GBP" }, "improvement_type": "Z3", "improvement_details": { "improvement_number": 53 }, "improvement_category": 6, "energy_performance_rating": 68, "environmental_impact_rating": 63 } ], "hot_water_cost_potential": { "value": 173, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 2691.69, "space_heating_existing_dwelling": 13763.35 }, "draughtproofed_door_count": 0, "energy_consumption_current": 268, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0290", "energy_consumption_potential": 140, "environmental_impact_current": 49, "current_energy_efficiency_band": "D", "environmental_impact_potential": 71, "led_fixed_lighting_bulbs_count": 15, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 49, "incandescent_fixed_lighting_bulbs_count": 2 }, "cert-56882ebd0316": { "uprn": 100110200625, "roofs": [ { "description": "Pitched, 200 mm loft insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "walls": [ { "description": "System built, with external insulation", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "floors": [ { "description": "Solid, no insulation (assumed)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 } ], "status": "entered", "tenure": 2, "window": { "description": "Fully double glazed", "energy_efficiency_rating": 3, "environmental_efficiency_rating": 3 }, "lighting": { "description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "postcode": "TS20 2UP", "hot_water": { "description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 }, "post_town": "", "built_form": 4, "created_at": "2025-09-09 13:14:54", "door_count": 2, "region_code": 7, "report_type": 2, "sap_heating": { "number_baths": 0, "cylinder_size": 1, "shower_outlets": [ { "shower_wwhrs": 1, "shower_outlet_type": 2 } ], "number_baths_wwhrs": 0, "water_heating_code": 901, "water_heating_fuel": 26, "main_heating_details": [ { "has_fghrs": "N", "main_fuel_type": 26, "boiler_flue_type": 2, "fan_flue_present": "Y", "heat_emitter_type": 1, "emitter_temperature": 0, "main_heating_number": 1, "main_heating_control": 2106, "main_heating_category": 2, "main_heating_fraction": 1, "central_heating_pump_age": 0, "main_heating_data_source": 1, "main_heating_index_number": 10315 } ], "immersion_heating_type": "NA", "has_fixed_air_conditioning": "false" }, "sap_version": 10.2, "sap_windows": [ { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.11, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 1, "window_type": 1, "glazing_type": 2, "window_width": 1.61, "window_height": 0.9, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 0.79, "window_height": 0.49, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" }, { "pvc_frame": "true", "orientation": 5, "window_type": 1, "glazing_type": 2, "window_width": 1.8, "window_height": 1.1, "draught_proofed": "true", "window_location": 0, "window_wall_type": 1, "permanent_shutters_present": "N", "permanent_shutters_insulated": "N" } ], "schema_type": "RdSAP-Schema-21.0.1", "uprn_source": "Energy Assessor", "country_code": "ENG", "main_heating": [ { "description": "Boiler and radiators, mains gas", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "air_tightness": { "description": "(not tested)", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "dwelling_type": "Mid-terrace bungalow", "language_code": 1, "pressure_test": 4, "property_type": 1, "address_line_1": "addr-4acf630d8ac0", "assessment_type": "RdSAP", "completion_date": "2025-09-09", "inspection_date": "2025-09-09", "extensions_count": 0, "measurement_type": 1, "total_floor_area": 43, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "true", "heated_room_count": 2, "registration_date": "2025-09-09", "sap_energy_source": { "mains_gas": "Y", "meter_type": 2, "pv_connection": 0, "photovoltaic_supply": { "none_or_no_details": { "percent_roof_area": 0 } }, "wind_turbines_count": 0, "gas_smart_meter_present": "false", "is_dwelling_export_capable": "false", "wind_turbines_terrain_type": 2, "electricity_smart_meter_present": "false" }, "secondary_heating": { "description": "None", "energy_efficiency_rating": 0, "environmental_efficiency_rating": 0 }, "sap_building_parts": [ { "identifier": "Main Dwelling", "wall_dry_lined": "N", "wall_thickness": 360, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 8, "building_part_number": 1, "sap_floor_dimensions": [ { "floor": 0, "room_height": { "value": 2.31, "quantity": "metres" }, "floor_insulation": 1, "total_floor_area": { "value": 42.874, "quantity": "square metres" }, "party_wall_length": { "value": 16.004, "quantity": "metres" }, "floor_construction": 1, "heat_loss_perimeter": { "value": 10.716, "quantity": "metres" } } ], "wall_insulation_type": 1, "construction_age_band": "E", "party_wall_construction": 0, "wall_thickness_measured": "Y", "roof_insulation_location": 2, "roof_insulation_thickness": "200mm", "wall_insulation_thickness": "100mm", "floor_insulation_thickness": "NI" } ], "solar_water_heating": "N", "habitable_room_count": 2, "heating_cost_current": { "value": 457, "currency": "GBP" }, "insulated_door_count": 0, "co2_emissions_current": 1.3, "energy_rating_average": 60, "energy_rating_current": 72, "lighting_cost_current": { "value": 35, "currency": "GBP" }, "main_heating_controls": [ { "description": "Programmer, room thermostat and TRVs", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4 } ], "has_hot_water_cylinder": "false", "heating_cost_potential": { "value": 429, "currency": "GBP" }, "hot_water_cost_current": { "value": 213, "currency": "GBP" }, "mechanical_ventilation": 5, "percent_draughtproofed": 100, "suggested_improvements": [ { "sequence": 1, "typical_saving": { "value": 28, "currency": "GBP" }, "indicative_cost": "\u00a35,000 - \u00a310,000", "improvement_type": "W2", "improvement_details": { "improvement_number": 58 }, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 83 }, { "sequence": 2, "typical_saving": { "value": 193, "currency": "GBP" }, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": { "improvement_number": 34 }, "improvement_category": 5, "energy_performance_rating": 79, "environmental_impact_rating": 84 } ], "co2_emissions_potential": 1.1, "energy_rating_potential": 79, "lighting_cost_potential": { "value": 35, "currency": "GBP" }, "schema_version_original": "21.0.1", "hot_water_cost_potential": { "value": 213, "currency": "GBP" }, "renewable_heat_incentive": { "water_heating": 1219.41, "space_heating_existing_dwelling": 4131.42 }, "draughtproofed_door_count": 2, "energy_consumption_current": 174, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "5.02r0305", "energy_consumption_potential": 139, "environmental_impact_current": 81, "current_energy_efficiency_band": "C", "environmental_impact_potential": 84, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "C", "co2_emissions_current_per_floor_area": 30, "low_energy_fixed_lighting_bulbs_count": 5, "incandescent_fixed_lighting_bulbs_count": 0 } } }