Local authority energy-performance profile
Rhondda Cynon Taf EPC ratings and energy costs
Understand how homes in Rhondda Cynon Taf score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.
Average EPC
D 67
1.5 points below analysed national average
Rated C or above
48.8%
of analysed certificates
Potential uplift
+16
average score points
Properties represented
35K
from 37K certificates
At a glance
What the data says about Rhondda Cynon Taf
48.8%
rated A–C
9.0%
rated E–G
£1,162
certificate-estimated annual cost
Cost figures are averages of estimates recorded on EPCs at different dates. They are useful for comparing areas, but they are not a forecast of a current household bill.
Latest official local-authority table
Updated through 30 June 2026
112,026
domestic EPC lodgements since 2008
35.5%
rated C or above
21.4%
rated E, F or G
The current MHCLG live table counts certificate lodgements, not unique homes. It complements the more detailed 2020–2025 EPCScore analysis below.
Housing market context — May 2026
Average property price
£168,304
Annual change
+8.7%
Context
Official UK HPI local-authority average
UK HPI figures are provisional and can be revised. They describe the whole local housing market; EPCScore does not infer that EPC ratings caused local price levels or changes. View the official UK HPI ↗
Average EPC score in Rhondda Cynon Taf
EPC band distribution in Rhondda Cynon Taf
Certificate-estimated energy costs
| Cost Type | Rhondda Cynon Taf | National Avg | Difference |
|---|---|---|---|
| Heating | £896/yr | £782/yr | ▲ £114 |
| Hot water | £168/yr | £184/yr | ▼ £16 |
| Lighting | £98/yr | £95/yr | ▲ £3 |
| Total | £1,162/yr | £1,061/yr | ▲ £101 |
These values come from certificate assessments and reflect standardised occupancy assumptions and energy prices used when each EPC was produced. They are not live tariffs.
Property types in the dataset
Main heating fuel
Carbon emissions and improvement potential
3.5 t
current annual CO₂ estimate
1.7 t
potential annual estimate
82 m²
average floor area
When the represented homes were built
Average EPC score over time
- 2020
- 64
- 2021
- 66
- 2022
- 67
- 2023
- 68
- 2024
- 68
- 2025
- 69