Postcode district
EPC ratings in W4
W4 in Hounslow has 11,166 properties with EPC certificates. The average rating is D, below the Hounslow average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly flat (61%). The most frequently recommended improvement is internal or external wall insulation.
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Percentage of properties in each EPC band across W4.
Property type mix
Distribution of property types (houses, flats, bungalows) within W4.
In W4, the most common EPC-rated properties are flat (around 61%) and house (around 34%). 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
Internal or external wall insulation
12500 occurrences
- 2
Low energy lighting for all fixed outlets
10764 occurrences
- 3
Solar photovoltaic panels, 2.5 kWp
7087 occurrences
- 4
Replace single glazed windows with low-E double glazed windows
6290 occurrences
- 5
Solar water heating
4585 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 W4, Hounslow.
Summary
In postcode district W4 (Hounslow), 42.7% of homes with an EPC are rated band C or above, based on the latest certificate for 11,166 homes on the official register (statistics updated June 2026). That is 5.0 percentage points below the England and Wales figure of 47.7%.
Citation
EPC Advisor (2026). EPC ratings in W4, Hounslow. Statistics updated June 2026. Analysis of the MHCLG Get Energy Performance Data register (Open Government Licence v3.0). https://epcadvisor.co.uk/browse/hounslow/W4
- Band C or above:
- a current rating of A, B or C.
- Homes counted:
- 11,166
- 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