Energy Performance Certificate
1 Heol-Y-Twyn, CF39 0PS
Energy rating
Current: 44 E | Potential: 84 B
Environmental impact (CO₂)
Current: 43
| Potential: 82
| Field | Value |
|---|---|
| LMK KEY | 0977-1210-3906-4078-0504 |
| ADDRESS1 | 1 Heol-Y-Twyn |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | CF39 0PS |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 44 |
| POTENTIAL ENERGY EFFICIENCY | 84 |
| PROPERTY TYPE | House |
| BUILT FORM | End-Terrace |
| INSPECTION DATE | 2026-03-10 |
| LOCAL AUTHORITY | W06000016 |
| CONSTITUENCY | W07000107 |
| COUNTY | — |
| LODGEMENT DATE | 2026-03-10 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 43 |
| ENVIRONMENT IMPACT POTENTIAL | 82 |
| ENERGY CONSUMPTION CURRENT | 395 |
| ENERGY CONSUMPTION POTENTIAL | 118 |
| CO2 EMISSIONS CURRENT | 5.2 |
| CO2 EMISS CURR PER FLOOR AREA | 71 |
| CO2 EMISSIONS POTENTIAL | 1.5 |
| LIGHTING COST CURRENT | 68 |
| LIGHTING COST POTENTIAL | 68 |
| HEATING COST CURRENT | 1133 |
| HEATING COST POTENTIAL | 547 |
| HOT WATER COST CURRENT | 797 |
| HOT WATER COST POTENTIAL | 323 |
| TOTAL FLOOR AREA | 73 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer and room thermostat |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 82 |
| 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 | Granite or whin, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | Room heaters, mains gas |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 300 mm loft insulation |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer and room thermostat |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| LIGHTING DESCRIPTION | Below average lighting efficiency |
| LIGHTING ENERGY EFF | Poor |
| LIGHTING ENV EFF | Poor |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.3 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 1 Heol-Y-Twyn |
| LOCAL AUTHORITY LABEL | Rhondda Cynon Taf |
| CONSTITUENCY LABEL | Rhondda and Ogmore |
| POSTTOWN | PORTH |
| CONSTRUCTION AGE BAND | England and Wales: 1900-1929 |
| LODGEMENT DATETIME | 2026-03-10 12:27:14 |
| TENURE | unknown |
| FIXED LIGHTING OUTLETS COUNT | 11 |
| LOW ENERGY FIXED LIGHT COUNT | 9 |
| UPRN | 100100743758 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |