EPC ratings map of Carmarthenshire

EPC bands in Carmarthenshire

1. Band A959 (2%)
2. Band B5,495 (9%)
3. Band C16,161 (26%)
4. Band D22,197 (36%)
5. Band E10,910 (18%)
6. Band F4,097 (7%)
7. Band G1,543 (3%)

61,362 homes, each counted once by its latest certificate. 63% are rated D or below, against 55% across Wales.

Private lets in Carmarthenshire

• 9,116homes last certified as private lets
• 69%of them rated D or below (62% across Wales)
• 5%rated F or G, below today's minimum of E unless exempt
• 20%with a certificate more than ten years old

Carmarthenshire ranks 19 of 318 councils in England and Wales for the share of private lets rated D or below (1 is the highest share). See every council

Of the Carmarthenshire homes rated D or below, 87% have a potential rating of C or better on their certificate: the assessor's view of what the recommended improvements would achieve. It doesn't say what they would cost for any one home.

Neighbourhoods with the most homes rated D or below

1. Carmarthenshire 006E, mostly in Trelech ward: 88% of 472 homes
2. Carmarthenshire 005C, mostly in Llanegwad ward: 88% of 331 homes
3. Carmarthenshire 002A, mostly in Cilycwm ward: 85% of 441 homes
4. Carmarthenshire 010E, mostly in Cwarter Bach ward: 85% of 501 homes
5. Carmarthenshire 015C, mostly in Llannon ward: 84% of 422 homes

Neighbourhoods with the fewest homes rated D or below

1. Carmarthenshire 026G, mostly in Glanymor ward: 14% of 795 homes
2. Carmarthenshire 006B, mostly in Carmarthen Town West ward: 20% of 655 homes
3. Carmarthenshire 025B, mostly in Bynea ward: 32% of 778 homes
4. Carmarthenshire 012B, mostly in Llangyndeyrn ward: 39% of 885 homes
5. Carmarthenshire 023C, mostly in Hengoed ward: 41% of 729 homes

How to read this map

• An EPC rates a home from A (most efficient) to G. Each home counts once, by its latest certificate, however old. Homes that have never had a certificate aren't counted.
• "Private let" means the latest certificate was lodged for a private letting. A home let since a sale certificate counts as not let, so the private-let count is a floor.
• Below C is a position on today's certificates, not a verdict. The government has announced that privately rented homes must reach band C from 1 October 2030, subject to Parliament, and the standard is expected to use reformed EPC metrics, so a D today doesn't mean a home will fail.
• A certificate lasts ten years. A home being let needs a valid one, so an expired certificate means a new assessment before the next let.

The announced EPC C 2030 policy, explained · MEES deadlines from 2026 to 2030 · Deprivation map of Carmarthenshire

More council EPC maps

• Blaenau Gwent
• Bridgend
• Caerphilly
• Cardiff
• Ceredigion
• Conwy
• Denbighshire
• Flintshire
• All councils in England and Wales

Sources

• Energy Performance of Buildings Data: domestic certificatesMinistry of Housing, Communities and Local Government, certificates lodged to 13 October 2026
• Lower layer Super Output Area boundaries (December 2021) and ward and council lookupOffice for National Statistics
• National Statistics Postcode Lookup, to place each home in its areaOffice for National Statistics

Contains public sector information licensed under the Open Government Licence v3.0. EPC address data was used only to place homes in areas: MHCLG has published the address data with the consent of Ordnance Survey and Royal Mail Group Limited, and none of it is shown here. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2021. Contains Royal Mail data © Royal Mail copyright and database right 2026.