Southampton home energy efficiency
January 2026
Residential buildings are energy-efficient. The average home energy rating in Southampton postcode area is 66.9, D rating. This is by 0.9 better score than the average home energy rating in England and Wales. The average potential rating is 79.2, C rating.
Southampton homes by energy rating

| Energy rating | Southampton | England & Wales |
|---|
| █ A | 0.2% | 0.2% |
| █ B | 12.7% | 11.5% |
| █ C | 62.4% | 60.8% |
| █ D | 10.5% | 11.8% |
| █ E | 10.9% | 12.2% |
| █ F | 2.7% | 2.6% |
| █ G | 0.7% | 0.8% |
Southampton map of energy efficiency of properties

Southampton homes by potential energy rating

| Potential energy rating | Southampton | England & Wales |
|---|
| █ A | 2.6% | 3.6% |
| █ B | 46.4% | 47.8% |
| █ C | 47.1% | 44.6% |
| █ D | 1.5% | 1.5% |
| █ E | 1.4% | 1.3% |
| █ F | 0.3% | 0.3% |
| █ G | 0.6% | 0.7% |
Southampton homes by main heating control energy efficiency

| Main heating control | Southampton | England & Wales |
|---|
| █ very poor | 2.3% | 4.5% |
| █ poor | 12.8% | 8.2% |
| █ average | 24.3% | 25.3% |
| █ good | 53.6% | 56.4% |
| █ very good | 7.0% | 5.7% |
Southampton homes by main heating energy efficiency

| Main heat efficiency | Southampton | England & Wales |
|---|
| █ very poor | 7.8% | 6.4% |
| █ poor | 4.9% | 3.0% |
| █ average | 12.7% | 9.8% |
| █ good | 70.9% | 76.7% |
| █ very good | 3.7% | 4.0% |
Southampton homes by walls energy efficiency

| Walls efficiency | Southampton | England & Wales |
|---|
| █ very poor | 5.8% | 22.3% |
| █ poor | 20.3% | 15.9% |
| █ average | 16.7% | 12.9% |
| █ good | 45.8% | 38.0% |
| █ very good | 11.3% | 10.9% |
Southampton homes by windows energy efficiency

| Windows efficiency | Southampton | England & Wales |
|---|
| █ very poor | 3.4% | 5.4% |
| █ poor | 3.9% | 4.7% |
| █ average | 54.0% | 50.4% |
| █ good | 28.9% | 30.1% |
| █ very good | 9.9% | 9.3% |
Southampton homes by hot water heating energy efficiency

| Hot water heating energy efficiency | Southampton | England & Wales |
|---|
| █ very poor | 9.8% | 7.5% |
| █ poor | 6.3% | 6.3% |
| █ average | 17.1% | 12.9% |
| █ good | 61.5% | 68.1% |
| █ very good | 5.4% | 5.2% |
Southampton homes by lighting energy efficiency

| Lightning energy efficiency | Southampton | England & Wales |
|---|
| █ very poor | 9.9% | 10.5% |
| █ poor | 7.3% | 7.0% |
| █ average | 12.2% | 12.0% |
| █ good | 15.7% | 15.9% |
| █ very good | 54.8% | 54.6% |
Plumplot area insights - interactive charts and maps

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