Postcode district
EPC ratings in AL7
AL7 in Welwyn Hatfield has 13,114 properties with EPC certificates. The average rating is C, matching the Welwyn Hatfield average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly house (58%). The most frequently recommended improvement is solar photovoltaic panels, 2.5 kwp.
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Percentage of properties in each EPC band across AL7.
Property type mix
Distribution of property types (houses, flats, bungalows) within AL7.
In AL7, the most common EPC-rated properties are house (around 58%) and flat (around 36%). 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
10432 occurrences
- 2
Solar water heating
10222 occurrences
- 3
Low energy lighting for all fixed outlets
7024 occurrences
- 4
Floor insulation (solid floor)
5975 occurrences
- 5
Replace boiler with new condensing boiler
3806 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 AL7, Welwyn Hatfield.
Summary
In postcode district AL7 (Welwyn Hatfield), 67.2% of homes with an EPC are rated band C or above, based on the latest certificate for 13,114 homes on the official register (statistics updated June 2026). That is 19.5 percentage points above the England and Wales figure of 47.7%.
Citation
EPC Advisor (2026). EPC ratings in AL7, Welwyn Hatfield. Statistics updated June 2026. Analysis of the MHCLG Get Energy Performance Data register (Open Government Licence v3.0). https://epcadvisor.co.uk/browse/welwyn-hatfield/AL7
- Band C or above:
- a current rating of A, B or C.
- Homes counted:
- 13,114
- 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