Local authority
EPC ratings in Gwynedd
Explore EPC ratings for properties in Gwynedd. 39,126 properties have been assessed, with an average rating of D. Browse districts below to see local energy efficiency trends, or search for a specific address to view detailed EPC data.
On average, 27% of EPC-rated homes in Gwynedd are band A-C and 73% are band D-G, broadly below the England & Wales average.
EPC distribution
Percentage of properties in each EPC band across Gwynedd.
District breakdown
23 districts in this authority.
LL23
Properties: 1,205
Band A-C
26%
Band D-G
74%
LL35
Properties: 588
Band A-C
21%
Band D-G
79%
LL36
Properties: 1,765
Band A-C
29%
Band D-G
71%
LL37
Properties: 211
Band A-C
11%
Band D-G
89%
LL38
Properties: 312
Band A-C
7%
Band D-G
93%
LL39
Properties: 76
Band A-C
4%
Band D-G
96%
LL40
Properties: 1,413
Band A-C
26%
Band D-G
74%
LL41
Properties: 2,077
Band A-C
20%
Band D-G
80%
LL42
Properties: 975
Band A-C
29%
Band D-G
71%
LL43
Properties: 156
Band A-C
8%
Band D-G
92%
LL44
Properties: 363
Band A-C
14%
Band D-G
86%
LL45
Properties: 216
Band A-C
12%
Band D-G
88%
LL46
Properties: 734
Band A-C
12%
Band D-G
88%
LL47
Properties: 205
Band A-C
4%
Band D-G
96%
LL48
Properties: 744
Band A-C
22%
Band D-G
78%
LL49
Properties: 1,580
Band A-C
28%
Band D-G
72%
LL51
Properties: 219
Band A-C
11%
Band D-G
89%
LL52
Properties: 937
Band A-C
28%
Band D-G
72%
LL53
Properties: 5,849
Band A-C
19%
Band D-G
81%
LL54
Properties: 3,436
Band A-C
20%
Band D-G
80%
LL55
Properties: 6,602
Band A-C
30%
Band D-G
70%
LL56
Properties: 876
Band A-C
41%
Band D-G
59%
LL57
Properties: 7,895
Band A-C
40%
Band D-G
60%
Common improvements in Gwynedd
Top recommended actions across districts in this authority.
- 1
Solar photovoltaic panels, 2.5 kWp
39807 occurrences · Code 34
- 2
Solar water heating
37035 occurrences · Code 19
- 3
Low energy lighting for all fixed outlets
21748 occurrences · Code 35
- 4
Internal or external wall insulation
20253 occurrences · Code 7
- 5
Floor insulation (solid floor)
19372 occurrences · Code 58
Check a property in this area
Enter your postcode to view a specific EPC report within Gwynedd.