Model/tests/fixtures/epc_prediction/RM143YU/cert-c93fcb1d9cf7.json
Khalim Conn-Kowlessar 008c1922c4 feat(epc-prediction): anonymised Tier-1 fixture + builder (ADR-0030)
The committed gate needs frozen, reproducible data without dumping real UK
addresses into the repo. Add:
- harness anonymise_payload + stable_hash: hash street address + cert number
  into opaque, dedup-stable tokens; blank secondary address lines + post_town;
  keep postcode + all component/lodged fields (gov data is OGL). Unit-tested.
- scripts/build_epc_prediction_fixture.py: curate qualifying postcodes (>=1
  SAP 10.2 target + >=2 distinct addresses) from the local scratch corpus,
  anonymise, freeze under tests/fixtures/epc_prediction/.
- The frozen fixture: 15 postcodes / 280 certs / 36 SAP-10.2 targets.
  Verified no plaintext address_line_1 and post_town all blank.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-14 09:17:27 +00:00

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{"uprn": 100021408554, "roofs": [{"description": "Pitched, 25 mm loft insulation", "energy_efficiency_rating": 2, "environmental_efficiency_rating": 2}, {"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": "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, "windows": [{"description": "Fully double glazed", "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": "RM14 3YU", "hot_water": {"description": "From main system", "energy_efficiency_rating": 4, "environmental_efficiency_rating": 4}, "post_town": "", "built_form": 2, "created_at": "2014-08-12 05:58:55.000000", "door_count": 2, "glazed_area": 2, "region_code": 2, "report_type": 2, "sap_heating": {"wwhrs": {"rooms_with_bath_and_or_shower": 2, "rooms_with_mixer_shower_no_bath": 1, "rooms_with_bath_and_mixer_shower": 1}, "cylinder_size": 1, "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, "boiler_index_number": 10327, "main_heating_number": 1, "main_heating_control": 2106, "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, 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-6cb8cf247890", "schema_version": "LIG-16.1", "assessment_type": "RdSAP", "completion_date": "2014-08-12", "inspection_date": "2014-08-12", "extensions_count": 1, "measurement_type": 1, "total_floor_area": 126, "transaction_type": 5, "conservatory_type": 1, "heated_room_count": 5, "registration_date": "2014-08-12", "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", "floor_heat_loss": 7, "roof_construction": 4, "wall_construction": 4, "building_part_number": 1, "sap_floor_dimensions": [{"floor": 0, "room_height": 2.45, "floor_insulation": 1, "total_floor_area": 41.78, "floor_construction": 1, "heat_loss_perimeter": 5.7}, {"floor": 1, "room_height": 2.45, "total_floor_area": 41.78, "heat_loss_perimeter": 18.73}], "wall_insulation_type": 4, "construction_age_band": "D", "wall_thickness_measured": "N", "roof_insulation_location": 2, "roof_insulation_thickness": "25mm"}, {"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": 2.63, "floor_insulation": 1, "total_floor_area": 42.46, "floor_construction": 1, "heat_loss_perimeter": 21.04}], "wall_insulation_type": 4, "construction_age_band": "K", "wall_thickness_measured": "Y", "roof_insulation_location": 4, "roof_insulation_thickness": "NI"}], "low_energy_lighting": 40, "solar_water_heating": "N", "bedf_revision_number": 346, "habitable_room_count": 5, "heating_cost_current": {"value": 710, "currency": "GBP"}, "insulated_door_count": 0, "co2_emissions_current": 3.8, "energy_rating_average": 60, "energy_rating_current": 71, "lighting_cost_current": {"value": 107, "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": 547, "currency": "GBP"}, "hot_water_cost_current": {"value": 109, "currency": "GBP"}, "mechanical_ventilation": 0, "percent_draughtproofed": 100, "suggested_improvements": [{"sequence": 1, "typical_saving": {"value": 69.9204397752441, "currency": "GBP"}, "indicative_cost": "\u00a3100 - \u00a3350", "improvement_type": "A", "improvement_details": {"improvement_number": 5}, "improvement_category": 5, "energy_performance_rating": 73, "environmental_impact_rating": 72}, {"sequence": 2, "typical_saving": {"value": 98.255650010857, "currency": "GBP"}, "indicative_cost": "\u00a3500 - \u00a31,500", "improvement_type": "B", "improvement_details": {"improvement_number": 6}, "improvement_category": 5, "energy_performance_rating": 76, "environmental_impact_rating": 76}, {"sequence": 3, "typical_saving": {"value": 34.2017052907536, "currency": "GBP"}, "indicative_cost": "\u00a375", "improvement_type": "E", "improvement_details": {"improvement_number": 35}, "improvement_category": 5, "energy_performance_rating": 77, "environmental_impact_rating": 77}, {"sequence": 4, "typical_saving": {"value": 260.661716949552, "currency": "GBP"}, "indicative_cost": "\u00a39,000 - \u00a314,000", "improvement_type": "U", "improvement_details": {"improvement_number": 34}, "improvement_category": 5, "energy_performance_rating": 85, "environmental_impact_rating": 84}], "co2_emissions_potential": 1.9, "energy_rating_potential": 85, "lighting_cost_potential": {"value": 67, "currency": "GBP"}, "alternative_improvements": [{"improvement": {"sequence": 1, "typical_saving": {"value": 18.4567923421866, "currency": "GBP"}, "improvement_type": "Q2", "improvement_details": {"improvement_number": 55}, "improvement_category": 6, "energy_performance_rating": 77, "environmental_impact_rating": 77}}], "hot_water_cost_potential": {"value": 109, "currency": "GBP"}, "renewable_heat_incentive": {"water_heating": 2305, "impact_of_loft_insulation": -1558, "space_heating_existing_dwelling": 12713}, "seller_commission_report": "Y", "energy_consumption_current": 158, "has_fixed_air_conditioning": "false", "multiple_glazed_proportion": 100, "calculation_software_version": "1.4.0.0", "energy_consumption_potential": 77, "environmental_impact_current": 69, "fixed_lighting_outlets_count": 25, "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": 30, "low_energy_fixed_lighting_outlets_count": 10}