Postcode district
EPC ratings in CO4
CO4 in Colchester has 17,301 properties with EPC certificates. The average rating is C, matching the Colchester average. Browse sectors below or search for a specific address to view detailed property data. The area is predominantly house (66%). The most frequently recommended improvement is solar water heating.
EPC distribution
Percentage of properties in each EPC band across CO4.
Property type mix
Distribution of property types (houses, flats, bungalows) within CO4.
In CO4, the most common EPC-rated properties are house (around 66%) and flat (around 23%). 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 water heating
15232 occurrences · Code L
- 2
Solar photovoltaic panels, 2.5 kWp
15010 occurrences · Code M
- 3
Low energy lighting for all fixed outlets
9520 occurrences · Code H
- 4
Floor insulation (solid floor)
5940 occurrences · Code E
- 5
Replace boiler with new condensing boiler
5586 occurrences · Code J
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