Energy efficiency by area — UK home EPC ratings
348 local authorities · England & Wales · MHCLG EPB live tables (Table D1)
Which areas of England and Wales have the most energy-efficient homes by EPC rating?
An Energy Performance Certificate (EPC) rates a home from A (most efficient, SAP 92-100) to G (least efficient, SAP 1-20). Across 348 local authorities in England and Wales, Tower Hamlets has the highest share of homes rated EPC C or better at 74.9%, while Isles of Scilly has the lowest at 14.9%. Nationally (England), 44.9% of lodged EPCs are C or better and the median band is D. Figures are MHCLG official statistics, cumulative to 2026-03-31, Open Government Licence v3.0.
What EPC ratings mean
An Energy Performance Certificate (EPC) rates a home’s energy efficiency on a scale from A (most efficient) to G (least efficient), based on a Standard Assessment Procedure (SAP) score from 1 to 100. A more efficient home costs less to heat and light and emits less carbon. An EPC is valid for 10 years and is legally required when a home is built, sold or let. Privately rented homes in England and Wales must currently be at least band E to be let lawfully, and the government’s stated ambition is for as many homes as possible to reach band C by 2035.
| Band | SAP score | Efficiency |
|---|---|---|
| A | 92-100 | Most efficient — lowest running costs & carbon |
| B | 81-91 | — |
| C | 69-80 | — |
| D | 55-68 | — |
| E | 39-54 | Minimum legal standard for private lets |
| F | 21-38 | — |
| G | 1-20 | Least efficient — highest running costs & carbon |
Most energy-efficient local authorities
Ranked by share of domestic EPCs rated C or better (A+B+C), the UK government’s “EPC C by 2035” threshold.
| Rank | Local authority | C or better | Median band |
|---|---|---|---|
| 1 | Tower Hamlets | 74.9% | C |
| 2 | North Northamptonshire | 65.0% | C |
| 3 | City of London | 64.8% | C |
| 4 | West Northamptonshire | 63.7% | C |
| 5 | Barnsley | 63.1% | C |
| 6 | Salford | 61.6% | C |
| 7 | Hackney | 61.3% | C |
| 8 | Milton Keynes | 61.2% | C |
| 9 | Southwark | 59.7% | C |
| 10 | Buckinghamshire | 58.8% | C |
Least energy-efficient local authorities
| Rank | Local authority | C or better | Median band |
|---|---|---|---|
| 348 | Isles of Scilly | 14.9% | E |
| 347 | Gwynedd | 25.7% | D |
| 346 | Pendle | 26.0% | D |
| 345 | Ceredigion | 26.9% | D |
| 344 | Castle Point | 27.5% | D |
| 343 | Barrow-in-Furness | 27.9% | D |
| 342 | Blackpool | 28.0% | D |
| 341 | Hyndburn | 28.8% | D |
| 340 | Eden | 28.9% | D |
| 339 | Copeland | 29.7% | D |
By country and English region
All 348 local authorities (A–Z)
Every local authority with its share rated EPC C or better and median band.
Frequently asked questions
- What is an EPC rating?
- An Energy Performance Certificate (EPC) rates a building’s energy efficiency from A to G using a Standard Assessment Procedure (SAP) score from 1 to 100. Band A (SAP 92-100) is the most efficient with the lowest running costs and carbon emissions; band G (SAP 1-20) is the least efficient. An EPC is valid for 10 years and is legally required when a home is built, sold or let.
- What do the EPC bands A to G mean?
- A = SAP 92-100, B = 81-91, C = 69-80, D = 55-68, E = 39-54, F = 21-38, G = 1-20. The UK government’s stated ambition is for as many homes as possible to reach band C by 2035, and privately rented homes must currently be at least band E to be let lawfully (Minimum Energy Efficiency Standards).
- Which area has the most energy-efficient homes?
- An Energy Performance Certificate (EPC) rates a home from A (most efficient, SAP 92-100) to G (least efficient, SAP 1-20). Across 348 local authorities in England and Wales, Tower Hamlets has the highest share of homes rated EPC C or better at 74.9%, while Isles of Scilly has the lowest at 14.9%. Nationally (England), 44.9% of lodged EPCs are C or better and the median band is D. Figures are MHCLG official statistics, cumulative to 2026-03-31, Open Government Licence v3.0.
- Are these figures the number of homes or the number of certificates?
- They are counts of certificates lodged on the Energy Performance of Buildings Register, not unique dwellings. A property sold or let several times since 2008 can hold multiple EPCs, so the totals exceed the dwelling stock. EPCs exist only for homes built, sold or let since 2008 — they are not a complete census of all homes. This is exactly how MHCLG publishes the figures.
- How up to date is this data?
- These are cumulative counts of all domestic EPCs lodged from Q4 2008 up to 2026-03-31 (the latest published MHCLG quarter). GeraRent refreshes the cluster each time MHCLG releases a new EPB live-tables edition. Source: MHCLG EPB live tables, Table D1, Open Government Licence v3.0.
Find energy-efficient rentals
Browse verified rental listings in the areas with the most energy-efficient homes — lower running costs, digital leases, no agency fees.
Browse rentals by efficiencySource: Energy Performance of Buildings Certificates — Live tables (Table D1, Domestic properties by energy efficiency rating), Ministry of Housing, Communities & Local Government (MHCLG). Contains public sector information licensed under the Open Government Licence v3.0. (c) Crown copyright. Open Government Licence v3.0. Cumulative to 2026-03-31 (Cumulative, all domestic EPCs lodged Q4 2008 to 2026 Q1 (to 31 March 2026)). Figures are counts of certificates lodged, not unique dwellings. The “share rated C or better” and the ranking are derived by GeraRent from the official band percentages.