Model/backend/epc_api/json_samples/RdSAP-Schema-20.0.0/epc.json
2026-04-09 14:47:54 +01:00

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{
"uprn": 12457,
"roofs": [
{
"description": "Pitched, 25 mm loft insulation",
"energy_efficiency_rating": 2,
"environmental_efficiency_rating": 2
},
{
"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": 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, 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": {
"stone_walls": "true",
"system_build": "true",
"addendum_numbers": [
1,
8
]
},
"lighting": {
"description": "Low energy lighting in 50% of fixed outlets",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"postcode": "A0 0AA",
"hot_water": {
"description": "From main system",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"post_town": "Whitbury",
"built_form": 2,
"door_count": 2,
"glazed_area": 1,
"region_code": 1,
"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": 25,
"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": 101,
"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": 9.8,
"sap_windows": [
{
"orientation": 1,
"window_area": 200.1,
"window_type": 2,
"glazing_type": 1,
"window_location": 0
},
{
"orientation": 2,
"window_area": 180.2,
"window_type": 1,
"glazing_type": 2,
"window_location": 1
}
],
"schema_type": "RdSAP-Schema-20.0.0",
"uprn_source": "Energy Assessor",
"country_code": "EAW",
"main_heating": [
{
"description": "Boiler and radiators, anthracite",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 1
},
{
"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": "1 Some Street",
"assessment_type": "RdSAP",
"completion_date": "2020-05-04",
"inspection_date": "2020-05-04",
"extensions_count": 0,
"measurement_type": 1,
"sap_flat_details": {
"level": 1,
"top_storey": "N",
"storey_count": 3,
"flat_location": 1,
"heat_loss_corridor": 2,
"unheated_corridor_length": 10
},
"total_floor_area": 55,
"transaction_type": 1,
"conservatory_type": 1,
"heated_room_count": 5,
"registration_date": "2020-05-04",
"sap_energy_source": {
"mains_gas": "Y",
"meter_type": 2,
"photovoltaic_supply": {
"none_or_no_details": {
"pv_connection": 0,
"percent_roof_area": 50
}
},
"wind_turbines_count": 0,
"wind_turbines_terrain_type": 2
},
"secondary_heating": {
"description": "Room heaters, electric",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"lzc_energy_sources": [
11
],
"sap_building_parts": [
{
"identifier": "Main Dwelling",
"wall_dry_lined": "N",
"floor_heat_loss": 7,
"sap_room_in_roof": {
"floor_area": 100,
"insulation": "AB",
"roof_room_connected": "N",
"construction_age_band": "B"
},
"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": 45.82,
"quantity": "square metres"
},
"party_wall_length": {
"value": 7.9,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 19.5,
"quantity": "metres"
}
},
{
"floor": 1,
"room_height": {
"value": 2.59,
"quantity": "metres"
},
"total_floor_area": {
"value": 45.82,
"quantity": "square metres"
},
"party_wall_length": {
"value": 7.9,
"quantity": "metres"
},
"heat_loss_perimeter": {
"value": 19.5,
"quantity": "metres"
}
}
],
"wall_insulation_type": 2,
"construction_age_band": "K",
"party_wall_construction": 0,
"wall_thickness_measured": "N",
"roof_insulation_location": 2,
"roof_insulation_thickness": "200mm",
"wall_insulation_thickness": "NI",
"floor_insulation_thickness": "NI"
}
],
"low_energy_lighting": 100,
"solar_water_heating": "N",
"habitable_room_count": 5,
"heating_cost_current": 365.98,
"insulated_door_count": 2,
"co2_emissions_current": 2.4,
"energy_rating_average": 60,
"energy_rating_current": 50,
"lighting_cost_current": 123.45,
"main_heating_controls": [
{
"description": "Programmer, room thermostat and TRVs",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
{
"description": "Time and temperature zone control",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
"multiple_glazing_type": 2,
"open_fireplaces_count": 0,
"heating_cost_potential": 250.34,
"hot_water_cost_current": 200.4,
"insulated_door_u_value": 3,
"mechanical_ventilation": 0,
"percent_draughtproofed": 100,
"suggested_improvements": [
{
"sequence": 1,
"typical_saving": 360,
"indicative_cost": "£100 - £350",
"improvement_type": "Z3",
"improvement_details": {
"improvement_number": 5
},
"improvement_category": 6,
"energy_performance_rating": 50,
"environmental_impact_rating": 50
},
{
"sequence": 2,
"typical_saving": 99,
"indicative_cost": 2000,
"improvement_type": "Z2",
"improvement_details": {
"improvement_number": 1
},
"improvement_category": 2,
"energy_performance_rating": 60,
"environmental_impact_rating": 64
},
{
"sequence": 3,
"typical_saving": 99,
"indicative_cost": 1000,
"improvement_type": "Z2",
"improvement_details": {
"improvement_texts": {
"improvement_summary": "An improvement summary",
"improvement_description": "An improvement desc"
}
},
"improvement_category": 2,
"energy_performance_rating": 60,
"environmental_impact_rating": 64
}
],
"co2_emissions_potential": 1.4,
"energy_rating_potential": 72,
"lighting_cost_potential": 84.23,
"schema_version_original": "SAP-19.0",
"hot_water_cost_potential": 180.43,
"renewable_heat_incentive": {
"water_heating": 2285,
"impact_of_loft_insulation": -2114,
"impact_of_cavity_insulation": -122,
"impact_of_solid_wall_insulation": -3560,
"space_heating_existing_dwelling": 13120
},
"energy_consumption_current": 230,
"multiple_glazed_proportion": 100,
"calculation_software_version": "13.05r16",
"energy_consumption_potential": 88,
"environmental_impact_current": 52,
"fixed_lighting_outlets_count": 16,
"windows_transmission_details": {
"u_value": 2,
"data_source": 2,
"solar_transmittance": 0.72
},
"multiple_glazed_proportion_nr": "NR",
"current_energy_efficiency_band": "E",
"environmental_impact_potential": 74,
"potential_energy_efficiency_band": "C",
"co2_emissions_current_per_floor_area": 20,
"low_energy_fixed_lighting_outlets_count": 16
}