Model/tests/fixtures/epc_prediction/PE71NT/cert-508b303ae8b9.json

{"uprn": 100090075273, "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, limited 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": "Excellent lighting efficiency", "energy_efficiency_rating": 5, "environmental_efficiency_rating": 5}, "postcode": "PE7 1NT", "hot_water": {"description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4}, "post_town": "", "psv_count": 0, "built_form": 4, "created_at": "2026-05-14 10:00:49", "door_count": 1, "region_code": 2, "report_type": 2, "sap_heating": {"number_baths": 0, "cylinder_size": 2, "shower_outlets": [{"shower_wwhrs": 1, "shower_outlet_type": 2}], "water_heating_code": 901, "water_heating_fuel": 26, "cylinder_thermostat": "Y", "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": 16453}], "immersion_heating_type": "NA", "cylinder_insulation_type": 1, "has_fixed_air_conditioning": "false", "cylinder_insulation_thickness": 25}, "sap_version": 10.2, "sap_windows": [{"pvc_frame": "true", "glazing_gap": "16+", "orientation": 7, "window_type": 1, "glazing_type": 3, "window_width": 0.88, "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": 1.18, "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": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.17, "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": 3, "window_type": 1, "glazing_type": 3, "window_width": 1.17, "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": 1.78, "window_height": 2.05, "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, "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-cd7ccbfd8d21", "address_line_2": "", "assessment_type": "RdSAP", "completion_date": "2026-05-14", "inspection_date": "2026-05-14", "extensions_count": 0, "measurement_type": 1, "open_flues_count": 0, "total_floor_area": 57, "transaction_type": 8, "conservatory_type": 1, "has_draught_lobby": "false", "heated_room_count": 3, "other_flues_count": 0, "registration_date": "2026-05-14", "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": "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": 275, "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": 29.09, "quantity": "square metres"}, "party_wall_length": {"value": 14.36, "quantity": "metres"}, "floor_construction": 1, "heat_loss_perimeter": {"value": 10.18, "quantity": "metres"}}, {"floor": 1, "room_height": {"value": 2.31, "quantity": "metres"}, "total_floor_area": {"value": 27.86, "quantity": "square metres"}, "party_wall_length": {"value": 14.36, "quantity": "metres"}, "heat_loss_perimeter": {"value": 7.76, "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": "100mm", "wall_insulation_thickness": "NI"}], "boilers_flues_count": 0, "open_chimneys_count": 0, "solar_water_heating": "N", "habitable_room_count": 3, "heating_cost_current": {"value": 591, "currency": "GBP"}, "insulated_door_count": 0, "co2_emissions_current": 1.8, "energy_rating_average": 60, "energy_rating_current": 69, "lighting_cost_current": {"value": 37, "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": "true", "heating_cost_potential": {"value": 591, "currency": "GBP"}, "hot_water_cost_current": {"value": 319, "currency": "GBP"}, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [{"sequence": 1, "typical_saving": 275, "indicative_cost": "\u00a38,000 - \u00a310,000", "improvement_type": "U", "improvement_details": {"improvement_number": 34}, "improvement_category": 5, "energy_performance_rating": 82, "environmental_impact_rating": 78}], "co2_emissions_potential": 1.5, "energy_rating_potential": 82, "lighting_cost_potential": {"value": 37, "currency": "GBP"}, "schema_version_original": "LIG-21.0.1", "flueless_gas_fires_count": 0, "hot_water_cost_potential": {"value": 319, "currency": "GBP"}, "renewable_heat_incentive": {"water_heating": 2240.37, "space_heating_existing_dwelling": 5319.27}, "draughtproofed_door_count": 1, "energy_consumption_current": 182, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "4.3.74", "energy_consumption_potential": 153, "environmental_impact_current": 75, "cfl_fixed_lighting_bulbs_count": 0, "current_energy_efficiency_band": "C", "environmental_impact_potential": 78, "led_fixed_lighting_bulbs_count": 8, "has_heated_separate_conservatory": "false", "potential_energy_efficiency_band": "B", "co2_emissions_current_per_floor_area": 31, "incandescent_fixed_lighting_bulbs_count": 0}