Postcode district
EPC ratings in LL40
LL40 in Gwynedd has 1,413 properties with EPC certificates. The average rating is D, matching the Gwynedd average. Browse sectors below or search for a specific address to view detailed property data.
EPC distribution
Percentage of properties in each EPC band across LL40.
Property type mix
Distribution of property types (houses, flats, bungalows) within LL40.
In LL40, the most common EPC-rated properties are house (around 69%) and bungalow (around 15%). 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
1374 occurrences · Code 34
- 2
Solar water heating
1304 occurrences · Code 19
- 3
Internal or external wall insulation
799 occurrences · Code 7
- 4
Low energy lighting for all fixed outlets
758 occurrences · Code 35
- 5
Floor insulation (solid floor)
657 occurrences · Code 58
Check a specific property
Enter your postcode to view an EPC report
Pick your address to see live EPC data and improvement recommendations.