{
  "uprn": 12457,
  "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
    },
    {
      "description": "System built, as built, no insulation (assumed)",
      "energy_efficiency_rating": 1,
      "environmental_efficiency_rating": 1
    },
    {
      "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,
  "windows": [
    {
      "description": "Fully double glazed",
      "energy_efficiency_rating": 3,
      "environmental_efficiency_rating": 3
    }
  ],
  "addendum": {
    "system_build": "true"
  },
  "lighting": {
    "description": "Low energy lighting in 36% of fixed outlets",
    "energy_efficiency_rating": 3,
    "environmental_efficiency_rating": 3
  },
  "postcode": "AA1 1AA",
  "hot_water": {
    "description": "From main system",
    "energy_efficiency_rating": 4,
    "environmental_efficiency_rating": 4
  },
  "post_town": "Town",
  "built_form": 4,
  "door_count": 2,
  "glazed_area": 1,
  "region_code": 14,
  "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": 0
    },
    "cylinder_size": 2,
    "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,
        "main_heating_number": 1,
        "main_heating_control": 2103,
        "main_heating_category": 2,
        "main_heating_fraction": 1,
        "sap_main_heating_code": 101,
        "main_heating_data_source": 2
      }
    ],
    "cylinder_insulation_type": 1,
    "has_fixed_air_conditioning": "false",
    "cylinder_insulation_thickness": 38
  },
  "sap_version": 9.91,
  "schema_type": "SAP-Schema-16.1",
  "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": "15, What the Dickens Road",
  "schema_version": "LIG-16.1",
  "assessment_type": "RdSAP",
  "completion_date": "2013-01-13",
  "inspection_date": "2013-01-09",
  "extensions_count": 1,
  "measurement_type": 1,
  "total_floor_area": 72,
  "transaction_type": 8,
  "conservatory_type": 1,
  "heated_room_count": 5,
  "registration_date": "2013-01-13",
  "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": 1
  },
  "secondary_heating": {
    "description": "None",
    "energy_efficiency_rating": 0,
    "environmental_efficiency_rating": 0
  },
  "lzc_energy_sources": [
    9
  ],
  "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_alternative_wall": {
        "wall_area": 18.9,
        "wall_dry_lined": "N",
        "wall_construction": 3,
        "wall_insulation_type": 4,
        "wall_thickness_measured": "N"
      },
      "sap_floor_dimensions": [
        {
          "floor": 0,
          "room_height": 2.43,
          "floor_insulation": 1,
          "total_floor_area": 34.2,
          "floor_construction": 2,
          "heat_loss_perimeter": 14.9
        },
        {
          "floor": 1,
          "room_height": 2.47,
          "total_floor_area": 34.2,
          "heat_loss_perimeter": 9.84
        }
      ],
      "wall_insulation_type": 2,
      "construction_age_band": "C",
      "wall_thickness_measured": "Y",
      "roof_insulation_location": 2,
      "roof_insulation_thickness": "300mm+"
    },
    {
      "identifier": "Extension 1",
      "wall_dry_lined": "N",
      "wall_thickness": 200,
      "floor_heat_loss": 7,
      "roof_construction": 1,
      "wall_construction": 8,
      "building_part_number": 2,
      "sap_floor_dimensions": [
        {
          "floor": 0,
          "room_height": 2.26,
          "floor_insulation": 0,
          "total_floor_area": 3.5,
          "floor_construction": 0,
          "heat_loss_perimeter": 5.7
        }
      ],
      "wall_insulation_type": 4,
      "construction_age_band": "E",
      "wall_thickness_measured": "Y",
      "roof_insulation_location": 4,
      "roof_insulation_thickness": "NI"
    }
  ],
  "low_energy_lighting": 36,
  "solar_water_heating": "N",
  "bedf_revision_number": 333,
  "habitable_room_count": 5,
  "heating_cost_current": {
    "value": 546,
    "currency": "GBP"
  },
  "insulated_door_count": 0,
  "co2_emissions_current": 3.4,
  "energy_rating_average": 60,
  "energy_rating_current": 61,
  "lighting_cost_current": {
    "value": 69,
    "currency": "GBP"
  },
  "main_heating_controls": [
    {
      "description": "Room thermostat only",
      "energy_efficiency_rating": 2,
      "environmental_efficiency_rating": 2
    }
  ],
  "multiple_glazing_type": 3,
  "open_fireplaces_count": 0,
  "has_hot_water_cylinder": "true",
  "heating_cost_potential": {
    "value": 378,
    "currency": "GBP"
  },
  "hot_water_cost_current": {
    "value": 127,
    "currency": "GBP"
  },
  "mechanical_ventilation": 0,
  "percent_draughtproofed": 100,
  "suggested_improvements": [
    {
      "sequence": 1,
      "typical_saving": {
        "value": 66,
        "currency": "GBP"
      },
      "indicative_cost": "£4,000 - £14,000",
      "improvement_type": "Q",
      "improvement_details": {
        "improvement_number": 7
      },
      "improvement_category": 5,
      "energy_performance_rating": 65,
      "environmental_impact_rating": 63
    },
    {
      "sequence": 2,
      "typical_saving": {
        "value": 36,
        "currency": "GBP"
      },
      "indicative_cost": "£800 - £1,200",
      "improvement_type": "W",
      "improvement_details": {
        "improvement_number": 47
      },
      "improvement_category": 5,
      "energy_performance_rating": 67,
      "environmental_impact_rating": 66
    },
    {
      "sequence": 3,
      "typical_saving": {
        "value": 23,
        "currency": "GBP"
      },
      "indicative_cost": "£35",
      "improvement_type": "E",
      "improvement_details": {
        "improvement_number": 35
      },
      "improvement_category": 5,
      "energy_performance_rating": 68,
      "environmental_impact_rating": 67
    },
    {
      "sequence": 4,
      "typical_saving": {
        "value": 21,
        "currency": "GBP"
      },
      "indicative_cost": "£350 - £450",
      "improvement_type": "G",
      "improvement_details": {
        "improvement_number": 15
      },
      "improvement_category": 5,
      "energy_performance_rating": 69,
      "environmental_impact_rating": 68
    },
    {
      "sequence": 5,
      "typical_saving": {
        "value": 75,
        "currency": "GBP"
      },
      "indicative_cost": "£2,200 - £3,000",
      "improvement_type": "I",
      "improvement_details": {
        "improvement_number": 20
      },
      "improvement_category": 5,
      "energy_performance_rating": 73,
      "environmental_impact_rating": 73
    },
    {
      "sequence": 6,
      "typical_saving": {
        "value": 34,
        "currency": "GBP"
      },
      "indicative_cost": "£4,000 - £6,000",
      "improvement_type": "N",
      "improvement_details": {
        "improvement_number": 19
      },
      "improvement_category": 5,
      "energy_performance_rating": 74,
      "environmental_impact_rating": 76
    },
    {
      "sequence": 7,
      "typical_saving": {
        "value": 247,
        "currency": "GBP"
      },
      "indicative_cost": "£9,000 - £14,000",
      "improvement_type": "U",
      "improvement_details": {
        "improvement_number": 34
      },
      "improvement_category": 5,
      "energy_performance_rating": 85,
      "environmental_impact_rating": 86
    }
  ],
  "co2_emissions_potential": 1.0,
  "energy_rating_potential": 85,
  "lighting_cost_potential": {
    "value": 42,
    "currency": "GBP"
  },
  "alternative_improvements": [
    {
      "sequence": 1,
      "typical_saving": {
        "value": 57,
        "currency": "GBP"
      },
      "improvement_type": "Z1",
      "improvement_details": {
        "improvement_number": 51
      },
      "improvement_category": 6,
      "energy_performance_rating": 72,
      "environmental_impact_rating": 74
    },
    {
      "sequence": 2,
      "typical_saving": {
        "value": 85,
        "currency": "GBP"
      },
      "improvement_type": "Z3",
      "improvement_details": {
        "improvement_number": 53
      },
      "improvement_category": 6,
      "energy_performance_rating": 73,
      "environmental_impact_rating": 72
    }
  ],
  "hot_water_cost_potential": {
    "value": 68,
    "currency": "GBP"
  },
  "renewable_heat_incentive": {
    "water_heating": 2530,
    "space_heating_existing_dwelling": 8564
  },
  "seller_commission_report": "Y",
  "energy_consumption_current": 244,
  "has_fixed_air_conditioning": "false",
  "multiple_glazed_proportion": 100,
  "calculation_software_version": "6.2.0.6",
  "energy_consumption_potential": 66,
  "environmental_impact_current": 59,
  "fixed_lighting_outlets_count": 11,
  "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_outlets_count": 4
}