Energy Performance Certificate
87 Heol Offa, Johnstown, LL14 2BB
Energy rating
Current: 94 A | Potential: 94 A
Environmental impact (CO₂)
Current: 100
| Potential: 100
| Field | Value |
|---|---|
| LMK KEY | 8435-2138-3500-0138-4226 |
| ADDRESS1 | 87 Heol Offa |
| ADDRESS2 | Johnstown |
| ADDRESS3 | — |
| POSTCODE | LL14 2BB |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | A |
| POTENTIAL ENERGY RATING | A |
| CURRENT ENERGY EFFICIENCY | 94 |
| POTENTIAL ENERGY EFFICIENCY | 94 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-08-28 |
| LOCAL AUTHORITY | W06000006 |
| CONSTITUENCY | W07000102 |
| COUNTY | — |
| LODGEMENT DATE | 2025-08-28 |
| TRANSACTION TYPE | New dwelling |
| ENVIRONMENT IMPACT CURRENT | 100 |
| ENVIRONMENT IMPACT POTENTIAL | 100 |
| ENERGY CONSUMPTION CURRENT | 19 |
| ENERGY CONSUMPTION POTENTIAL | 19 |
| CO2 EMISSIONS CURRENT | -0.0 |
| CO2 EMISS CURR PER FLOOR AREA | -0.0 |
| CO2 EMISSIONS POTENTIAL | -0.0 |
| LIGHTING COST CURRENT | 48 |
| LIGHTING COST POTENTIAL | 48 |
| HEATING COST CURRENT | 144 |
| HEATING COST POTENTIAL | 144 |
| HOT WATER COST CURRENT | 358 |
| HOT WATER COST POTENTIAL | 358 |
| TOTAL FLOOR AREA | 54 |
| ENERGY TARIFF | standard tariff |
| MAINS GAS FLAG | — |
| FLOOR LEVEL | 1 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | — |
| NUMBER HABITABLE ROOMS | — |
| NUMBER HEATED ROOMS | — |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Average thermal transmittance 0.1 W/m²K |
| FLOOR ENERGY EFF | Very Good |
| FLOOR ENV EFF | Very Good |
| WINDOWS DESCRIPTION | High performance glazing |
| WINDOWS ENERGY EFF | Very Good |
| WINDOWS ENV EFF | Very Good |
| WALLS DESCRIPTION | Average thermal transmittance 0.1 W/m²K |
| WALLS ENERGY EFF | Very Good |
| WALLS ENV EFF | Very Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | (other premises above) |
| ROOF ENERGY EFF | N/A |
| ROOF ENV EFF | N/A |
| MAINHEAT DESCRIPTION | Air source heat pump, radiators, electric |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| MAIN FUEL | Electricity: electricity, unspecified tariff |
| WIND TURBINE COUNT | — |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | — |
| MECHANICAL VENTILATION | — |
| ADDRESS | 87 Heol Offa, Johnstown |
| LOCAL AUTHORITY LABEL | Wrexham |
| CONSTITUENCY LABEL | Montgomeryshire and Glyndwr |
| POSTTOWN | WREXHAM |
| CONSTRUCTION AGE BAND | 2024 |
| LODGEMENT DATETIME | 2025-08-28 15:18:22 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 8 |
| LOW ENERGY FIXED LIGHT COUNT | 8 |
| UPRN | 10096240961 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 3 |
| Source file | certificates-2025.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |