Local authority
EPC ratings in Rhondda Cynon Taf
Explore EPC ratings for properties in Rhondda Cynon Taf. 74,339 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. The most common improvement recommended across Rhondda Cynon Taf is solar photovoltaic panels, 2.5 kwp, followed by solar water heating.
On average, 38% of EPC-rated homes in Rhondda Cynon Taf are band A-C and 62% are band D-G, broadly below the England & Wales average.
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Percentage of properties in each EPC band across Rhondda Cynon Taf.
District breakdown
11 districts in this authority.
CF37
Properties: 12,092
Band A-C
35%
Band D-G
65%
CF38
Properties: 6,476
Band A-C
48%
Band D-G
52%
CF39
Properties: 8,456
Band A-C
39%
Band D-G
61%
CF40
Properties: 6,254
Band A-C
27%
Band D-G
73%
CF41
Properties: 3,437
Band A-C
27%
Band D-G
73%
CF42
Properties: 4,786
Band A-C
25%
Band D-G
75%
CF43
Properties: 4,110
Band A-C
25%
Band D-G
75%
CF44
Properties: 12,779
Band A-C
39%
Band D-G
61%
CF45
Properties: 6,225
Band A-C
33%
Band D-G
67%
CF7
Properties: 1
Band A-C
0%
Band D-G
100%
CF72
Properties: 8,554
Band A-C
57%
Band D-G
43%
Common improvements in Rhondda Cynon Taf
Top recommended actions across districts in this authority.
- 1
Solar photovoltaic panels, 2.5 kWp
83134 occurrences
- 2
Solar water heating
74883 occurrences
- 3
Low energy lighting for all fixed outlets
55686 occurrences
- 4
Internal or external wall insulation
45222 occurrences
- 5
Floor insulation (solid floor)
37499 occurrences
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Use these statistics
Free to reuse with a link to this page. Figures cover homes with an EPC on the official register, counted by their latest certificate. Homes that have never had an EPC are not included, so the figures describe certified homes, not every home in Rhondda Cynon Taf.
Summary
In Rhondda Cynon Taf, 37.6% of homes with an EPC are rated band C or above, based on the latest certificate for 74,339 homes on the official register (statistics updated June 2026). That is 10.1 percentage points below the England and Wales figure of 47.7%.
Citation
EPC Advisor (2026). EPC ratings in Rhondda Cynon Taf. Statistics updated June 2026. Analysis of the MHCLG Get Energy Performance Data register (Open Government Licence v3.0). https://epcadvisor.co.uk/browse/rhondda-cynon-taf
- Band C or above:
- a current rating of A, B or C.
- Homes counted:
- 74,339
- Statistics updated:
- June 2026
- Source:
- The MHCLG Get Energy Performance Data register, published under the Open Government Licence v3.0. How we calculate these figures · All EPC data downloads