Energy Performance Certificate
23 Bontuchaf, Carneddi, Bethesda, LL57 3SN
Energy rating
Current: 29 F | Potential: 79 C
Environmental impact (CO₂)
Current: 81
| Potential: 90
| Field | Value |
|---|---|
| LMK KEY | 9632-3957-3202-8035-5204 |
| ADDRESS1 | 23 Bontuchaf |
| ADDRESS2 | Carneddi |
| ADDRESS3 | Bethesda |
| POSTCODE | LL57 3SN |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | F |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 29 |
| POTENTIAL ENERGY EFFICIENCY | 79 |
| PROPERTY TYPE | House |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-12-17 |
| LOCAL AUTHORITY | W06000002 |
| CONSTITUENCY | W07000083 |
| COUNTY | — |
| LODGEMENT DATE | 2025-12-17 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 81 |
| ENVIRONMENT IMPACT POTENTIAL | 90 |
| ENERGY CONSUMPTION CURRENT | 262 |
| ENERGY CONSUMPTION POTENTIAL | 140 |
| CO2 EMISSIONS CURRENT | 1.3 |
| CO2 EMISS CURR PER FLOOR AREA | 25 |
| CO2 EMISSIONS POTENTIAL | 0.7 |
| LIGHTING COST CURRENT | 43 |
| LIGHTING COST POTENTIAL | 50 |
| HEATING COST CURRENT | 2016 |
| HEATING COST POTENTIAL | 681 |
| HOT WATER COST CURRENT | 454 |
| HOT WATER COST POTENTIAL | 385 |
| TOTAL FLOOR AREA | 53 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | None |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 1 |
| NUMBER HABITABLE ROOMS | 3 |
| NUMBER HEATED ROOMS | 0 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 1 |
| HOTWATER DESCRIPTION | Electric immersion, standard tariff |
| 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 | 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 | Portable electric heaters (assumed) |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 150 mm loft insulation |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| 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 | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| 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 | 2.2 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 23 Bontuchaf, Carneddi, Bethesda |
| LOCAL AUTHORITY LABEL | Gwynedd |
| CONSTITUENCY LABEL | Bangor Aberconwy |
| POSTTOWN | BANGOR |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2025-12-17 14:17:09 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 7 |
| LOW ENERGY FIXED LIGHT COUNT | 7 |
| UPRN | 200003198444 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |