Will your Rhondda Cynon Taf rental pass EPC C by 2030?
7,444 of 11,521 privately rented homes in Rhondda Cynon Taf are below EPC C, 65% of the local rental market. They must be upgraded by 1 October 2030.
How Rhondda Cynon Taf compares
Well above average
A bigger share of Rhondda Cynon Taf's rented homes fall short than in most of England and Wales.
65% of rented homes here are below EPC C, against 53% across England and Wales. That ranks Rhondda Cynon Taf 38 of 318 councils by the share needing work.
Every band in Rhondda Cynon Taf
Of 11,521 privately rented homes with a current certificate.
How many can actually reach C?
7,227 of the 7,444 sub-C rentals in Rhondda Cynon Taf, 97% of them, already have a potential rating of C or better on their current certificate. That is the assessor's own estimate of what the property would reach if the recommended measures were installed.
Landlords are required to spend up to £10,000 per property. Above that, an exemption may apply.
The transitional rule
An EPC rated C or higher on the existing Energy Efficiency Rating, issued before 1 October 2029, counts as compliant until that certificate expires.
Source: Transitional rule. Verified 21 September 2026.
Local housing stock
| Privately rented | 11,521 |
|---|---|
| Socially rented | 12,299 |
| Owner occupied | 36,666 |
| Median floor area | 81 m² |
Postcode districts in Rhondda Cynon Taf
Districts that sit mostly or wholly inside Rhondda Cynon Taf.
| District | Post town | Rented | Below C | Share |
|---|---|---|---|---|
| CF37 | Pontypridd | 2,333 | 1,554 | 67% |
| CF44 | Aberdare | 1,891 | 1,283 | 68% |
| CF39 | Porth | 1,249 | 820 | 66% |
| CF40 | Tonypandy | 1,108 | 767 | 69% |
| CF45 | Mountain Ash | 1,045 | 745 | 71% |
| CF43 | Ferndale | 834 | 569 | 68% |
| CF42 | Treorchy | 699 | 467 | 67% |
| CF72 | Pontyclun | 961 | 447 | 47% |
| CF41 | Pentre | 558 | 392 | 70% |
| CF38 | Pontypridd | 746 | 357 | 48% |
| CF15 | Cardiff | 540 | 232 | 43% |