Portsmouth flat energy efficiency
January 2026
Flats are ordinary efficient. The average flat energy rating in Portsmouth postcode area is 68.8, D rating. This is by 1.1 worse score than the average flat energy rating in England and Wales. The average potential rating is 75.9, C rating.
Portsmouth flats by energy rating
| Energy rating | Portsmouth | England & Wales |
|---|
| █ A | 0.1% | 0.1% |
| █ B | 13.8% | 17.4% |
| █ C | 65.9% | 64.6% |
| █ D | 7.5% | 7.7% |
| █ E | 9.9% | 8.2% |
| █ F | 2.3% | 1.6% |
| █ G | 0.6% | 0.5% |
Portsmouth map of energy efficiency of flats
Portsmouth flats by potential energy rating
| Potential energy rating | Portsmouth | England & Wales |
|---|
| █ A | 0.1% | 0.1% |
| █ B | 23.0% | 27.1% |
| █ C | 72.7% | 68.9% |
| █ D | 2.1% | 2.0% |
| █ E | 1.7% | 1.4% |
| █ F | 0.4% | 0.3% |
| █ G | 0.1% | 0.1% |
Portsmouth flats by main heating control energy efficiency
| Main heating control | Portsmouth | England & Wales |
|---|
| █ very poor | 2.7% | 4.7% |
| █ poor | 19.4% | 14.1% |
| █ average | 24.1% | 24.0% |
| █ good | 50.5% | 54.1% |
| █ very good | 3.3% | 3.1% |
Portsmouth flats by main heating energy efficiency
| Main heat efficiency | Portsmouth | England & Wales |
|---|
| █ very poor | 13.0% | 14.6% |
| █ poor | 6.5% | 4.4% |
| █ average | 17.2% | 12.2% |
| █ good | 58.9% | 62.8% |
| █ very good | 4.4% | 5.9% |
Portsmouth flats by walls energy efficiency
| Walls efficiency | Portsmouth | England & Wales |
|---|
| █ very poor | 10.3% | 21.9% |
| █ poor | 24.6% | 14.7% |
| █ average | 10.8% | 8.9% |
| █ good | 43.8% | 39.4% |
| █ very good | 10.5% | 15.2% |
Portsmouth flats by windows energy efficiency
| Windows efficiency | Portsmouth | England & Wales |
|---|
| █ very poor | 4.6% | 8.9% |
| █ poor | 4.6% | 4.4% |
| █ average | 51.7% | 42.0% |
| █ good | 30.9% | 31.7% |
| █ very good | 8.1% | 12.9% |
Portsmouth flats by hot water heating energy efficiency
| Hot water heating energy efficiency | Portsmouth | England & Wales |
|---|
| █ very poor | 14.6% | 14.2% |
| █ poor | 7.2% | 6.6% |
| █ average | 17.1% | 13.5% |
| █ good | 55.7% | 58.3% |
| █ very good | 5.5% | 7.4% |
Portsmouth flats by lighting energy efficiency
| Lightning energy efficiency | Portsmouth | England & Wales |
|---|
| █ very poor | 9.9% | 10.8% |
| █ poor | 6.4% | 5.4% |
| █ average | 11.6% | 10.2% |
| █ good | 15.3% | 13.9% |
| █ very good | 56.8% | 59.8% |
Plumplot area insights - interactive charts and maps
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