Gwynedd flat energy efficiency
January 2026
Flats are energetically very inefficient. The average flat energy rating in Gwynedd county is 65.3, D rating. This is by 4.6 worse score than the average flat energy rating in England and Wales. The average potential rating is 74.3, C rating.
Gwynedd flats by energy rating
| Energy rating | Gwynedd | England & Wales |
|---|
| █ A | 1.2% | 0.1% |
| █ B | 10.8% | 17.4% |
| █ C | 59.6% | 64.6% |
| █ D | 8.0% | 7.7% |
| █ E | 13.2% | 8.2% |
| █ F | 5.2% | 1.6% |
| █ G | 2.1% | 0.5% |
Gwynedd map of energy efficiency of flats
Gwynedd flats by potential energy rating
| Potential energy rating | Gwynedd | England & Wales |
|---|
| █ A | 1.3% | 0.1% |
| █ B | 17.3% | 27.1% |
| █ C | 74.3% | 68.9% |
| █ D | 2.7% | 2.0% |
| █ E | 3.1% | 1.4% |
| █ F | 1.1% | 0.3% |
| █ G | 0.3% | 0.1% |
Gwynedd flats by main heating control energy efficiency
| Main heating control | Gwynedd | England & Wales |
|---|
| █ very poor | 2.2% | 4.7% |
| █ poor | 20.1% | 14.1% |
| █ average | 19.6% | 24.0% |
| █ good | 54.9% | 54.1% |
| █ very good | 3.3% | 3.1% |
Gwynedd flats by main heating energy efficiency
| Main heat efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 17.0% | 14.6% |
| █ poor | 5.7% | 4.4% |
| █ average | 18.3% | 12.2% |
| █ good | 56.6% | 62.8% |
| █ very good | 2.3% | 5.9% |
Gwynedd flats by walls energy efficiency
| Walls efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 24.0% | 21.9% |
| █ poor | 14.8% | 14.7% |
| █ average | 5.9% | 8.9% |
| █ good | 41.7% | 39.4% |
| █ very good | 13.5% | 15.2% |
Gwynedd flats by windows energy efficiency
| Windows efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 6.7% | 8.9% |
| █ poor | 4.9% | 4.4% |
| █ average | 39.6% | 42.0% |
| █ good | 39.2% | 31.7% |
| █ very good | 9.6% | 12.9% |
Gwynedd flats by hot water heating energy efficiency
| Hot water heating energy efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 19.7% | 14.2% |
| █ poor | 7.8% | 6.6% |
| █ average | 13.9% | 13.5% |
| █ good | 53.0% | 58.3% |
| █ very good | 5.5% | 7.4% |
Gwynedd flats by lighting energy efficiency
| Lightning energy efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 7.2% | 10.8% |
| █ poor | 4.1% | 5.4% |
| █ average | 9.5% | 10.2% |
| █ good | 13.3% | 13.9% |
| █ very good | 65.9% | 59.8% |
Plumplot area insights - interactive charts and maps
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