Energy Performance Certificate
25 Mary Street, Seven Sisters, SA10 9BG
Energy rating
Current: 10 G | Potential: 77 C
Environmental impact (CO₂)
Current: 72
| Potential: 88
| Field | Value |
|---|---|
| LMK KEY | 1336-1627-5500-0757-9206 |
| ADDRESS1 | 25 Mary Street |
| ADDRESS2 | Seven Sisters |
| ADDRESS3 | — |
| POSTCODE | SA10 9BG |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | G |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 10 |
| POTENTIAL ENERGY EFFICIENCY | 77 |
| PROPERTY TYPE | House |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2026-03-03 |
| LOCAL AUTHORITY | W06000012 |
| CONSTITUENCY | W07000103 |
| COUNTY | — |
| LODGEMENT DATE | 2026-03-03 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 72 |
| ENVIRONMENT IMPACT POTENTIAL | 88 |
| ENERGY CONSUMPTION CURRENT | 305 |
| ENERGY CONSUMPTION POTENTIAL | 134 |
| CO2 EMISSIONS CURRENT | 2.4 |
| CO2 EMISS CURR PER FLOOR AREA | 29 |
| CO2 EMISSIONS POTENTIAL | 1.0 |
| LIGHTING COST CURRENT | 201 |
| LIGHTING COST POTENTIAL | 91 |
| HEATING COST CURRENT | 3256 |
| HEATING COST POTENTIAL | 969 |
| HOT WATER COST CURRENT | 1067 |
| HOT WATER COST POTENTIAL | 404 |
| TOTAL FLOOR AREA | 81 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | None |
| MULTI GLAZE PROPORTION | 69 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 1 |
| NUMBER HABITABLE ROOMS | 4 |
| NUMBER HEATED ROOMS | 0 |
| LOW ENERGY LIGHTING | 0 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | No system present: electric immersion assumed |
| HOT WATER ENERGY EFF | Very Poor |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Partial double glazing |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | Sandstone, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | Portable electric heaters (assumed) |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, no insulation |
| ROOF ENERGY EFF | Very Poor |
| ROOF ENV EFF | Very Poor |
| MAINHEAT DESCRIPTION | No system present: electric heaters assumed |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | None |
| MAINHEATC ENERGY EFF | Very Poor |
| MAINHEATC ENV EFF | Very Poor |
| LIGHTING DESCRIPTION | Below average lighting efficiency |
| LIGHTING ENERGY EFF | Very Poor |
| LIGHTING ENV EFF | Very Poor |
| MAIN FUEL | To be used only when there is no heating/hot-water system or data is from a community network |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 25 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 | 2026-03-03 16:54:26 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 1 |
| LOW ENERGY FIXED LIGHT COUNT | 0 |
| UPRN | 10009180816 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |