Devon home energy efficiency
January 2026
Residential buildings are ordinary efficient. The average home energy rating in Devon county is 64.3, D rating. This is by 1.7 worse score than the average home energy rating in England and Wales. The average potential rating is 79.3, C rating.
Devon homes by energy rating

| Energy rating | Devon | England & Wales |
|---|
| █ A | 0.4% | 0.2% |
| █ B | 11.7% | 11.5% |
| █ C | 55.6% | 60.8% |
| █ D | 11.8% | 11.8% |
| █ E | 14.4% | 12.2% |
| █ F | 4.5% | 2.6% |
| █ G | 1.6% | 0.8% |
Devon map of energy efficiency of properties

Devon homes by potential energy rating

| Potential energy rating | Devon | England & Wales |
|---|
| █ A | 5.7% | 3.6% |
| █ B | 44.5% | 47.8% |
| █ C | 43.6% | 44.6% |
| █ D | 1.8% | 1.5% |
| █ E | 2.0% | 1.3% |
| █ F | 0.6% | 0.3% |
| █ G | 1.8% | 0.7% |
Devon homes by main heating control energy efficiency

| Main heating control | Devon | England & Wales |
|---|
| █ very poor | 2.3% | 4.5% |
| █ poor | 10.9% | 8.2% |
| █ average | 24.5% | 25.3% |
| █ good | 54.8% | 56.4% |
| █ very good | 7.5% | 5.7% |
Devon homes by main heating energy efficiency

| Main heat efficiency | Devon | England & Wales |
|---|
| █ very poor | 6.2% | 6.4% |
| █ poor | 5.4% | 3.0% |
| █ average | 16.2% | 9.8% |
| █ good | 68.0% | 76.7% |
| █ very good | 4.2% | 4.0% |
Devon homes by walls energy efficiency

| Walls efficiency | Devon | England & Wales |
|---|
| █ very poor | 19.6% | 22.3% |
| █ poor | 17.7% | 15.9% |
| █ average | 13.1% | 12.9% |
| █ good | 38.3% | 38.0% |
| █ very good | 11.3% | 10.9% |
Devon homes by windows energy efficiency

| Windows efficiency | Devon | England & Wales |
|---|
| █ very poor | 5.6% | 5.4% |
| █ poor | 5.3% | 4.7% |
| █ average | 48.9% | 50.4% |
| █ good | 31.0% | 30.1% |
| █ very good | 9.3% | 9.3% |
Devon homes by hot water heating energy efficiency

| Hot water heating energy efficiency | Devon | England & Wales |
|---|
| █ very poor | 10.3% | 7.5% |
| █ poor | 7.3% | 6.3% |
| █ average | 16.2% | 12.9% |
| █ good | 59.7% | 68.1% |
| █ very good | 6.5% | 5.2% |
Devon homes by lighting energy efficiency

| Lightning energy efficiency | Devon | England & Wales |
|---|
| █ very poor | 8.9% | 10.5% |
| █ poor | 6.9% | 7.0% |
| █ average | 11.8% | 12.0% |
| █ good | 16.1% | 15.9% |
| █ very good | 56.3% | 54.6% |
Plumplot area insights - interactive charts and maps

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