Postcode district
EPC ratings in SM4
SM4 in Merton has 9,334 properties with EPC certificates. The average rating is D, matching the Merton average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly house (69%). The most frequently recommended improvement is solar photovoltaic panels, 2.5 kwp.
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Percentage of properties in each EPC band across SM4.
Property type mix
Distribution of property types (houses, flats, bungalows) within SM4.
In SM4, the most common EPC-rated properties are house (around 69%) and flat (around 25%). 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
Solar photovoltaic panels, 2.5 kWp
9488 occurrences
- 2
Solar water heating
8518 occurrences
- 3
Low energy lighting for all fixed outlets
7307 occurrences
- 4
Internal or external wall insulation
5236 occurrences
- 5
Floor insulation (suspended floor)
4489 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 SM4, Merton.
Summary
In postcode district SM4 (Merton), 38.7% of homes with an EPC are rated band C or above, based on the latest certificate for 9,334 homes on the official register (statistics updated June 2026). That is 9.0 percentage points below the England and Wales figure of 47.7%.
Citation
EPC Advisor (2026). EPC ratings in SM4, Merton. Statistics updated June 2026. Analysis of the MHCLG Get Energy Performance Data register (Open Government Licence v3.0). https://epcadvisor.co.uk/browse/merton/SM4
- Band C or above:
- a current rating of A, B or C.
- Homes counted:
- 9,334
- 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