Postcode district
EPC ratings in LL23
LL23 in Gwynedd has 1,232 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. The area is predominantly house (71%). The most frequently recommended improvement is solar photovoltaic panels, 2.5 kwp.
EPC distribution
Percentage of properties in each EPC band across LL23.
Property type mix
Distribution of property types (houses, flats, bungalows) within LL23.
In LL23, the most common EPC-rated properties are house (around 71%) 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
1265 occurrences · Code M
- 2
Solar water heating
1159 occurrences · Code L
- 3
Low energy lighting for all fixed outlets
767 occurrences · Code H
- 4
Floor insulation (solid floor)
706 occurrences · Code E
- 5
Internal or external wall insulation
621 occurrences · Code C
Sector breakdown
1 postcode sectors in LL23.
Check a specific property
Enter your postcode to view an EPC report
Pick your address to see live EPC data and improvement recommendations.
Partner Booking
Book an EPC assessment in LL23
Book an accredited EPC assessment, Gas Safety certificate or EICR with EPC UK — qualified assessors covering your area.