Windsor and Maidenhead EPC ratings

Over the last 4 quarters, 3,980 domestic Energy Performance Certificates were lodged in Windsor and Maidenhead. 69.1% were rated C or better, 4.6 points above the England and Wales average of 64.5%. That puts Windsor and Maidenhead at 71 of 320 local authorities. The most common recent band is C. These figures cover certificates lodged when homes were built, sold or let, so they lean towards housing that recently changed hands rather than the whole stock.

69.1%rated C or better, last 4 quarters
71of 320 local authorities
71,997certificates since 2008
105.0 m²average floor area per certificate

Band distribution

Last 4 quarters

A 1.3%B 18.1%C 49.6%D 25.4%E 4.7%F 0.7%G 0.1%

All certificates since 2008

A 0.3%B 11.6%C 32.5%D 35.7%E 15.4%F 3.7%G 0.8%

Certificates lodged by quarter

Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026

Postcode districts in Windsor and Maidenhead

SL4 · SL5 · SL6

Radon potential in Windsor and Maidenhead

57.2% of postcodes in Windsor and Maidenhead sit in a radon Affected Area, where at least 1 home in 100 is estimated to be at or above the radon action level. None are in the two highest classes. The highest class found in the area is 3 of 6. Check any postcode on the radon map.

Contains British Geological Survey and UK Health Security Agency data © BGS/UKHSA, and Ordnance Survey Code-Point Open data © Crown copyright and database right, used under the Open Government Licence v3.0.

Similar-ranked areas

Redditch69.6%C or better · #68Hounslow69.5%C or better · #69Hartlepool69.2%C or better · #70Cheshire West and Chester69%C or better · #72Cherwell69%C or better · #73Peterborough68.8%C or better · #74
Want the certificate for a specific address in Windsor and Maidenhead? Use the official lookup: find an energy certificate on gov.uk. If your home is rated D or below, start with how to improve your EPC rating.
Source: MHCLG, Live tables on Energy Performance of Buildings Certificates, Table D1 (by local authority), published under the Open Government Licence v3.0. Data covers domestic certificates lodged up to 2026 Q2. Retrieved and last checked on 2026-09-06. Read more on how we handle the data.