Energy Performance Certificate
Dwylan, High Street, LL46 2YA
Energy rating
Current: 45 E | Potential: 75 C
Environmental impact (CO₂)
Current: 78
| Potential: 89
| Field | Value |
|---|---|
| LMK KEY | 9599-3956-3209-6065-7204 |
| ADDRESS1 | Dwylan |
| ADDRESS2 | High Street |
| ADDRESS3 | — |
| POSTCODE | LL46 2YA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 45 |
| POTENTIAL ENERGY EFFICIENCY | 75 |
| PROPERTY TYPE | House |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-11-11 |
| LOCAL AUTHORITY | W06000002 |
| CONSTITUENCY | W07000096 |
| COUNTY | — |
| LODGEMENT DATE | 2026-04-13 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 78 |
| ENVIRONMENT IMPACT POTENTIAL | 89 |
| ENERGY CONSUMPTION CURRENT | 273 |
| ENERGY CONSUMPTION POTENTIAL | 139 |
| CO2 EMISSIONS CURRENT | 1.7 |
| CO2 EMISS CURR PER FLOOR AREA | 25 |
| CO2 EMISSIONS POTENTIAL | 0.9 |
| LIGHTING COST CURRENT | 55 |
| LIGHTING COST POTENTIAL | 56 |
| HEATING COST CURRENT | 1973 |
| HEATING COST POTENTIAL | 964 |
| HOT WATER COST CURRENT | 414 |
| HOT WATER COST POTENTIAL | 359 |
| TOTAL FLOOR AREA | 68 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Manual charge control |
| MULTI GLAZE PROPORTION | 41 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 1 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Electric immersion, off-peak, plus solar |
| HOT WATER ENERGY EFF | 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 | Granite or whin, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Poor |
| WALLS ENV EFF | Poor |
| SECONDHEAT DESCRIPTION | Portable electric heaters (assumed) |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, insulated (assumed) |
| ROOF ENERGY EFF | Average |
| ROOF ENV EFF | Average |
| MAINHEAT DESCRIPTION | Electric storage heaters |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Manual charge control |
| MAINHEATC ENERGY EFF | Poor |
| MAINHEATC ENV EFF | Poor |
| 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 | 2.37 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | Y |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Dwylan, High Street |
| LOCAL AUTHORITY LABEL | Gwynedd |
| CONSTITUENCY LABEL | Dwyfor Meirionnydd |
| POSTTOWN | HARLECH |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-04-13 07:34:40 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 9 |
| LOW ENERGY FIXED LIGHT COUNT | 9 |
| UPRN | 200003179982 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |