Energy Performance Certificate
42 Gwernant, Cwmllynfell, SA9 2FT
Energy rating
Current: 56 D | Potential: 83 B
Environmental impact (CO₂)
Current: 51
| Potential: 74
| Field | Value |
|---|---|
| LMK KEY | 3020-2052-0657-1101-1683 |
| ADDRESS1 | 42 Gwernant |
| ADDRESS2 | Cwmllynfell |
| ADDRESS3 | — |
| POSTCODE | SA9 2FT |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 56 |
| POTENTIAL ENERGY EFFICIENCY | 83 |
| PROPERTY TYPE | House |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2026-05-29 |
| LOCAL AUTHORITY | W06000012 |
| CONSTITUENCY | W07000085 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-30 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 51 |
| ENVIRONMENT IMPACT POTENTIAL | 74 |
| ENERGY CONSUMPTION CURRENT | 244 |
| ENERGY CONSUMPTION POTENTIAL | 126 |
| CO2 EMISSIONS CURRENT | 5.1 |
| CO2 EMISS CURR PER FLOOR AREA | 59 |
| CO2 EMISSIONS POTENTIAL | 2.7 |
| LIGHTING COST CURRENT | 51 |
| LIGHTING COST POTENTIAL | 51 |
| HEATING COST CURRENT | 933 |
| HEATING COST POTENTIAL | 583 |
| HOT WATER COST CURRENT | 425 |
| HOT WATER COST POTENTIAL | 303 |
| TOTAL FLOOR AREA | 86 |
| 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 | 0 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | From main system, no cylinder thermostat |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Poor |
| 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 | Cavity wall, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Poor |
| WALLS ENV EFF | Poor |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 100 mm loft insulation |
| ROOF ENERGY EFF | Average |
| ROOF ENV EFF | Average |
| MAINHEAT DESCRIPTION | Boiler and radiators, oil |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Average |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | oil (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.42 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 42 Gwernant, Cwmllynfell |
| LOCAL AUTHORITY LABEL | Neath Port Talbot |
| CONSTITUENCY LABEL | Brecon, Radnor and Cwm Tawe |
| POSTTOWN | SWANSEA |
| CONSTRUCTION AGE BAND | England and Wales: 1930-1949 |
| LODGEMENT DATETIME | 2026-05-30 09:07:09 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 22 |
| LOW ENERGY FIXED LIGHT COUNT | 22 |
| UPRN | 100100621378 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |