Energy Performance Certificate
36 Derwydd Avenue, Gwaun Cae Gurwen, SA18 1PH
Energy rating
Current: 61 D | Potential: 71 C
Environmental impact (CO₂)
Current: 57
| Potential: 65
| Field | Value |
|---|---|
| LMK KEY | 3400-4217-0122-3520-3853 |
| ADDRESS1 | 36 Derwydd Avenue |
| ADDRESS2 | Gwaun Cae Gurwen |
| ADDRESS3 | — |
| POSTCODE | SA18 1PH |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 61 |
| POTENTIAL ENERGY EFFICIENCY | 71 |
| PROPERTY TYPE | House |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2025-08-29 |
| LOCAL AUTHORITY | W06000012 |
| CONSTITUENCY | W07000085 |
| COUNTY | — |
| LODGEMENT DATE | 2025-09-09 |
| TRANSACTION TYPE | Non-marketed sale |
| ENVIRONMENT IMPACT CURRENT | 57 |
| ENVIRONMENT IMPACT POTENTIAL | 65 |
| ENERGY CONSUMPTION CURRENT | 253 |
| ENERGY CONSUMPTION POTENTIAL | 199 |
| CO2 EMISSIONS CURRENT | 3.8 |
| CO2 EMISS CURR PER FLOOR AREA | 46 |
| CO2 EMISSIONS POTENTIAL | 3.1 |
| LIGHTING COST CURRENT | 72 |
| LIGHTING COST POTENTIAL | 73 |
| HEATING COST CURRENT | 1144 |
| HEATING COST POTENTIAL | 945 |
| HOT WATER COST CURRENT | 186 |
| HOT WATER COST POTENTIAL | 186 |
| TOTAL FLOOR AREA | 82 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer, TRVs and bypass |
| MULTI GLAZE PROPORTION | 0 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 77 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Single glazed |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | System built, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | None |
| 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 | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer, TRVs and bypass |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| LIGHTING DESCRIPTION | Below average lighting efficiency |
| LIGHTING ENERGY EFF | Average |
| LIGHTING ENV EFF | Average |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.43 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 36 Derwydd Avenue, Gwaun Cae Gurwen |
| LOCAL AUTHORITY LABEL | Neath Port Talbot |
| CONSTITUENCY LABEL | Brecon, Radnor and Cwm Tawe |
| POSTTOWN | AMMANFORD |
| CONSTRUCTION AGE BAND | England and Wales: 1930-1949 |
| LODGEMENT DATETIME | 2025-09-09 20:46:38 |
| TENURE | unknown |
| FIXED LIGHTING OUTLETS COUNT | 13 |
| LOW ENERGY FIXED LIGHT COUNT | 10 |
| UPRN | 100100620099 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |