Leakiest streets by area
Postcode areas ranked by the share of homes rated energy band D or below, computed from lodged energy certificates. Open an area to see its leakiest streets and the retrofit uplift the register estimates.
| Area | Band D or below | Certificates | Avg rating | Avg saving |
|---|---|---|---|---|
| OX28 | 38.7% | 3987 | 69.1 | £116/yr |
| OX26 | 32.6% | 2920 | 70.8 | £79/yr |
| OX14 | 30.2% | 1897 | 72.0 | £95/yr |
The average rating is the mean SAP score (1–100, higher is more efficient). The average saving is the mean difference between the estimated current and potential annual heating cost across the certificates in each area.