Energy Performance Certificate
27 Mary Street, Seven Sisters, SA10 9BG
Energy rating
Current: 81 B | Potential: 92 A
Environmental impact (CO₂)
Current: 95
| Potential: 97
| Field | Value |
|---|---|
| LMK KEY | 3036-0425-5600-0877-2296 |
| ADDRESS1 | 27 Mary Street |
| ADDRESS2 | Seven Sisters |
| ADDRESS3 | — |
| POSTCODE | SA10 9BG |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | A |
| CURRENT ENERGY EFFICIENCY | 81 |
| POTENTIAL ENERGY EFFICIENCY | 92 |
| PROPERTY TYPE | House |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2026-05-13 |
| LOCAL AUTHORITY | W06000012 |
| CONSTITUENCY | W07000103 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-15 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 95 |
| ENVIRONMENT IMPACT POTENTIAL | 97 |
| ENERGY CONSUMPTION CURRENT | 53 |
| ENERGY CONSUMPTION POTENTIAL | 34 |
| CO2 EMISSIONS CURRENT | 0.4 |
| CO2 EMISS CURR PER FLOOR AREA | 5 |
| CO2 EMISSIONS POTENTIAL | 0.2 |
| LIGHTING COST CURRENT | 59 |
| LIGHTING COST POTENTIAL | 59 |
| HEATING COST CURRENT | 717 |
| HEATING COST POTENTIAL | 490 |
| HOT WATER COST CURRENT | 308 |
| HOT WATER COST POTENTIAL | 357 |
| TOTAL FLOOR AREA | 81 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 2 |
| NUMBER HABITABLE ROOMS | 4 |
| NUMBER HEATED ROOMS | 4 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| WINDOWS ENERGY EFF | Average |
| WINDOWS ENV EFF | Average |
| WALLS DESCRIPTION | Sandstone, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Poor |
| WALLS ENV EFF | Poor |
| SECONDHEAT DESCRIPTION | Room heaters, dual fuel (mineral and wood) |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 200 mm loft insulation |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| 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 (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.48 |
| PHOTO SUPPLY | 50 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 27 Mary Street, Seven Sisters |
| LOCAL AUTHORITY LABEL | Neath Port Talbot |
| CONSTITUENCY LABEL | Neath and Swansea East |
| POSTTOWN | NEATH |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-05-15 06:03:07 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 14 |
| LOW ENERGY FIXED LIGHT COUNT | 14 |
| UPRN | 10009180818 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |