Neath · SA11
EPC in SA11 (Blaengwrach)? We'll point you the right way.
Covering Blaengwrach, Briton Ferry, Cimla, Glynneath, Neath town centre, Resolven, Tonmawr, Tonna, including Blaengwrach and Glynneath West, Briton Ferry East, Briton Ferry West. Find accredited domestic energy assessors nearby.
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How to check an EPC assessor is registered: see the Neath page.
SA11 (Blaengwrach) in a nutshell
SA11 covers Blaengwrach, Briton Ferry, Cimla, Glynneath, Neath town centre, Resolven, Tonmawr, Tonna, in Neath Port Talbot and Powys and Rhondda Cynon Taf. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SA11
Two councils in one district
SA11 is split between Neath Port Talbot and Powys and Rhondda Cynon Taf. Some councils run their own landlord licensing, so check which one your home is in.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SA11 stretches across Blaengwrach and Glynneath West, Briton Ferry East, Briton Ferry West and more, so give your full postcode, not just 'SA11', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsTerrace and semi country
Most homes here are terraces or semis. Insulation and heating upgrades are the usual way to nudge a rating up, so have receipts ready.
Where's this from?
ONS Census 2021, Neath: 25.9% terraced, 38.5% semi-detachedWales landlord rules: quick version
- When you let: give contract-holders a valid EPC.
- Minimum E: generally applies to private lets.
More detail on the Neath page. Always double-check on GOV.WALES.
Next door to SA11
← Energy Performance Certificate (EPC) across Neath · all areas
Frequently asked questions
Which areas does SA11 cover?
SA11 (Blaengwrach, Briton Ferry, Cimla, Glynneath, Neath town centre, Resolven, Tonmawr, Tonna) includes the wards of Blaengwrach and Glynneath West, Briton Ferry East, Briton Ferry West, Cimla and Pelenna, Crynant, Onllwyn and Seven Sisters, Glynneath Central and East, Hirwaun, Penderyn and Rhigos, Neath East, Neath North, Neath South, Resolven and Tonna, Tawe Uchaf (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SA11?
Neighbouring districts include SA10 (Aberdulais), SA12 (Aberafan), SA13 (Bryn), SA9 (Abercraf), SA8 (Alltwen) (ONS Postcode Directory via Doogal). A pro covering SA11 may well cover these too, so it's worth asking.
How many homes are in SA11?
About 16,140 households and 36,624 residents at the 2011 Census, across 989 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SA11 in?
SA11 sits in Neath Port Talbot, Powys, Rhondda Cynon Taf (postcodes.io). Parliamentary constituency: Aberafan Maesteg, Brecon, Radnor and Cwm Tawe, Merthyr Tydfil and Aberdare, Neath and Swansea East.
📊 The numbers behind this page
- Postcode district
- SA11 1
- Areas covered
- Blaengwrach, Briton Ferry, Cimla, Glynneath, Neath town centre, Resolven, Tonmawr, Tonna 2
- Active postcodes
- 989 3
- Households (2011 Census, via Doogal)
- 16,140 2
- Population (2011 Census, via Doogal)
- 36,624 2
- Electoral wards
- Blaengwrach and Glynneath West, Briton Ferry East, Briton Ferry West, Cimla and Pelenna, Crynant, Onllwyn and Seven Sisters, Glynneath Central and East, Hirwaun, Penderyn and Rhigos, Neath East … 4
- Parliamentary constituencies
- Aberafan Maesteg, Brecon, Radnor and Cwm Tawe, Merthyr Tydfil and Aberdare, Neath and Swansea East 4
- Local authority
- Neath Port Talbot, Powys, Rhondda Cynon Taf 4
- Households privately renting (Neath built-up area)
- 14.0% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- ONS Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.