Postcode district
EPC ratings in W1S
W1S in Westminster has 290 properties with EPC certificates. The average rating is C, matching the Westminster average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly flat (91%). The most frequently recommended improvement is low energy lighting for all fixed outlets.
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Percentage of properties in each EPC band across W1S.
Property type mix
Distribution of property types (houses, flats, bungalows) within W1S.
In W1S, the most common EPC-rated properties are flat (around 91%) and maisonette (around 7%). This mix shapes how easy it is for local homes to improve their EPC ratings.
Top recommendations
Improvements most often recommended in this district.
- 1
Low energy lighting for all fixed outlets
166 occurrences
- 2
Internal or external wall insulation
141 occurrences
- 3
Replace single glazed windows with low-E double glazed windows
73 occurrences
- 4
Heat recovery system for mixer showers
60 occurrences
- 5
Flat roof or sloping ceiling insulation
33 occurrences
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Use these statistics
Free to reuse with a link to this page. Figures cover homes with an EPC on the official register, counted by their latest certificate. Homes that have never had an EPC are not included, so the figures describe certified homes, not every home in W1S, Westminster.
Summary
In postcode district W1S (Westminster), 65.2% of homes with an EPC are rated band C or above, based on the latest certificate for 290 homes on the official register (statistics updated June 2026). That is 17.5 percentage points above the England and Wales figure of 47.7%.
Citation
EPC Advisor (2026). EPC ratings in W1S, Westminster. Statistics updated June 2026. Analysis of the MHCLG Get Energy Performance Data register (Open Government Licence v3.0). https://epcadvisor.co.uk/browse/westminster/W1S
- Band C or above:
- a current rating of A, B or C.
- Homes counted:
- 290
- Statistics updated:
- June 2026
- Source:
- The MHCLG Get Energy Performance Data register, published under the Open Government Licence v3.0. How we calculate these figures · All EPC data downloads