Postcode district
SA18: house prices and neighbourhoods
The SA18 postcode district (Carmarthenshire, Neath Port Talbot, Swansea): 772 live postcodes across 9 neighbourhoods, with official figures as of 3 October 2026.
Typical house price
£190,000
Median of 75 resales of existing houses in SA18, Aug 2025 to Aug 2026.
Source: HM Land Registry Price Paid Data
Neighbourhoods in SA18
| Neighbourhood | Council | Typical house | Typical flat | Affluence today | Signs of gentrification |
|---|---|---|---|---|---|
| Abergwili, Llanegwad & Carmel | Carmarthenshire | £290,000 | – | Affluent | Few signs |
| Ammanford & Betws | Carmarthenshire | £190,000 | – | Middle income | Few signs |
| Brynaman, Y Garnant & Glanaman | Carmarthenshire | £150,000 | – | Below average income | Few signs |
| Llan-non, Cross Hands & Pen-y-groes | Carmarthenshire | £175,000 | – | Middle income | Some signs |
| Llandeilo, Llangadog & Maenordeilo | Carmarthenshire | £265,000 | – | Among the most affluent | Some signs |
| Llandybie & Saron | Carmarthenshire | £213,750 | – | Middle income | Some signs |
| Yr Hendy & Tŷ-croes | Carmarthenshire | £188,000 | – | Middle income | Few signs |
| Ystalyfera & Gwaun-Cae-Gurwen | Neath Port Talbot | £149,975 | – | Below average income | Clear signs |
| Clydach & Mawr | Swansea | £169,995 | – | Below average income | Few signs |
Each neighbourhood's figures are the median resale prices of houses and flats, Affluence today and the gentrification indication from its own page.
Thinking of buying in SA18?
A full report covers flood risk, schools, crime, your commute, energy, planning and how the area is changing, for the exact home.
Prepare a full report for a home See a sample reportNeighbourhood names: House of Commons Library, MSOA Names, Open Parliament Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Contains National Statistics data © Crown copyright and database right 2026. Figures describe the area, not any home, and are not a valuation or a prediction.