The English areas facing the biggest EPC upgrade bill (2026)
By Housey · Data: All lodged domestic EPCs (current register)
England's homes divide into the snug and the draughty: across 296 local authorities, 53.4% of lodged domestic EPCs sit below band C, the government's efficiency threshold — but the share ranges from just 23% in Tower Hamlets to 85% in Isles of Scilly. However cold your house feels this winter, someone has it worse.
- 296
- Authorities ranked
- 53.4%
- Average below EPC C
- 84.9%
- Biggest upgrade gap
- 23.2%
- Smallest gap
Isles of Scilly
Tower Hamlets
| # | Local authority | % below EPC C | Homes below C | Certificates |
|---|---|---|---|---|
| 1 | Isles of Scilly | 84.9% | 1,006 | 1,185 |
| 2 | Pendle | 73.0% | 29,600 | 40,551 |
| 3 | Blackpool | 71.6% | 56,391 | 78,716 |
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| 294 | Salford | 36.5% | 51,165 | 140,118 |
| 295 | City of London | 32.1% | 2,283 | 7,113 |
| 296 | Tower Hamlets | 23.2% | 33,506 | 144,387 |
Methodology & sources
% of lodged domestic EPCs below band C per local authority (Get Energy Performance of Buildings Data). Counts certificates, not unique dwellings.
- Source: https://get-energy-performance-data.communities.gov.uk/
- Period: All lodged domestic EPCs (current register)
- Data retrieved: 7 July 2026
- Authorities ranked: 296
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