Postcode district
EPC ratings in HA3
HA3 in Harrow has 13,369 properties with EPC certificates. The average rating is D, matching the Harrow average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly house (59%). The most frequently recommended improvement is solar photovoltaic panels, 2.5 kwp.
EPC distribution
Percentage of properties in each EPC band across HA3.
Property type mix
Distribution of property types (houses, flats, bungalows) within HA3.
In HA3, the most common EPC-rated properties are house (around 59%) and flat (around 35%). 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
13075 occurrences · Code M
- 2
Solar water heating
11446 occurrences · Code L
- 3
Internal or external wall insulation
11407 occurrences · Code C
- 4
Low energy lighting for all fixed outlets
8873 occurrences · Code H
- 5
Floor insulation (suspended floor)
6671 occurrences · Code E
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