Model/tests/fixtures/epc_prediction/W104HL/cert-da229c5051b4.json

{"uprn": 100022784892, "roofs": [{"description": "Pitched, 270 mm loft insulation", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5}, {"description": "Pitched, 12 mm loft 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": "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": "Single glazed", "energy_efficiency_rating": 1, "environmental_efficiency_rating": 1}, "lighting": {"description": "Good lighting efficiency", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4}, "postcode": "W10 4HL", "hot_water": {"description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4}, "post_town": "", "psv_count": 4, "built_form": 4, "created_at": "2026-03-30 11:27:34", "door_count": 2, "region_code": 17, "report_type": 2, "sap_heating": {"number_baths": 1, "cylinder_size": 1, "shower_outlets": [{"shower_outlet": {"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": 18908}], "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": 1.71, "window_height": 1.8, "draught_proofed": "false", "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": 5, "window_width": 1.19, "window_height": 1.8, "draught_proofed": "false", "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": 5, "window_width": 1.27, "window_height": 1.79, "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": 1.19, "window_height": 1.79, "draught_proofed": "false", "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": 5, "window_width": 1.1, "window_height": 1.81, "draught_proofed": "false", "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": 5, "window_width": 1.1, "window_height": 1.81, "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": 1.12, "window_height": 1.31, "draught_proofed": "false", "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-dd816c70a95d", "assessment_type": "RdSAP", "completion_date": "2026-03-30", "inspection_date": "2025-12-20", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 82, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 4, "registration_date": "2026-03-30", "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": 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": 270, "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 3, "building_part_number": 1, "sap_floor_dimensions": [{"floor": 0, "room_height": {"value": 2.6, "quantity": "metres"}, "floor_insulation": 1, "total_floor_area": {"value": 29.94, "quantity": "square metres"}, "party_wall_length": {"value": 7.42, "quantity": "metres"}, "floor_construction": 2, "heat_loss_perimeter": {"value": 13.17, "quantity": "metres"}}, {"floor": 1, "room_height": {"value": 2.77, "quantity": "metres"}, "total_floor_area": {"value": 31.02, "quantity": "square metres"}, "party_wall_length": {"value": 7.42, "quantity": "metres"}, "heat_loss_perimeter": {"value": 13.39, "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": 270, "floor_heat_loss": 7, "roof_construction": 5, "wall_construction": 3, "building_part_number": 2, "sap_floor_dimensions": [{"floor": 0, "room_height": {"value": 2.6, "quantity": "metres"}, "floor_insulation": 1, "total_floor_area": {"value": 10.76, "quantity": "square metres"}, "party_wall_length": {"value": 0, "quantity": "metres"}, "floor_construction": 1, "heat_loss_perimeter": {"value": 11.59, "quantity": "metres"}}, {"floor": 1, "room_height": {"value": 2.7, "quantity": "metres"}, "total_floor_area": {"value": 10.76, "quantity": "square metres"}, "party_wall_length": {"value": 0, "quantity": "metres"}, "heat_loss_perimeter": {"value": 11.59, "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": "12mm", "wall_insulation_thickness": "NI", "floor_insulation_thickness": "NI"}], "solar_water_heating": "N", "habitable_room_count": 4, "heating_cost_current": {"value": 1209, "currency": "GBP"}, "insulated_door_count": 0, "co2_emissions_current": 4.0, "energy_rating_average": 60, "energy_rating_current": 57, "lighting_cost_current": {"value": 62, "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": 644, "currency": "GBP"}, "hot_water_cost_current": {"value": 174, "currency": "GBP"}, "mechanical_ventilation": 0, "percent_draughtproofed": 0, "suggested_improvements": [{"sequence": 1, "typical_saving": {"value": 399, "currency": "GBP"}, "indicative_cost": "\u00a37,500 - \u00a311,000", "improvement_type": "Q", "improvement_details": {"improvement_number": 7}, "improvement_category": 5, "energy_performance_rating": 68, "environmental_impact_rating": 66}, {"sequence": 2, "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": 69, "environmental_impact_rating": 68}, {"sequence": 3, "typical_saving": {"value": 27, "currency": "GBP"}, "indicative_cost": "\u00a3150 - \u00a3250", "improvement_type": "D", "improvement_details": {"improvement_number": 10}, "improvement_category": 5, "energy_performance_rating": 70, "environmental_impact_rating": 69}, {"sequence": 4, "typical_saving": {"value": 89, "currency": "GBP"}, "indicative_cost": "\u00a34,500 - \u00a36,000", "improvement_type": "O", "improvement_details": {"improvement_number": 8}, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 73}, {"sequence": 5, "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": 78, "environmental_impact_rating": 74}], "co2_emissions_potential": 2.1, "energy_rating_potential": 78, "lighting_cost_potential": {"value": 63, "currency": "GBP"}, "schema_version_original": "21.0.1", "hot_water_cost_potential": {"value": 175, "currency": "GBP"}, "renewable_heat_incentive": {"water_heating": 2357.32, "space_heating_existing_dwelling": 14254.17}, "draughtproofed_door_count": 0, "energy_consumption_current": 263, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 0, "calculation_software_version": "5.02r0335", "energy_consumption_potential": 131, "environmental_impact_current": 51, "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": 48, "low_energy_fixed_lighting_bulbs_count": 8, "incandescent_fixed_lighting_bulbs_count": 0}