3Y Avg Price
£356,607
7 sales
Properties
27
Sales / Year
2.4
5-year average
Avg £/sq ft
£248
£2,665/m²
Rank in SA18
16th
of 243 streets
Last Sale
£435,000
Jul 2026
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
47 total recorded
CWMCLEDDAU COTTAGE Heol Ddu
Detached
£435,000
Jul 2026
Y GARTH Heol Ddu
Detached
£375,000
May 2026
TY CARREG Heol Ddu
Detached
£175,625
Mar 2026
PANTYBRYN Heol Ddu
Detached
£175,625
Mar 2026
Y GARTH Heol Ddu
Detached
£350,000
May 2025
LLAIN ALAW Heol Ddu
Detached
£410,000
Jan 2025
MELLIONS Heol Ddu
Detached
£575,000
Sept 2024
MELLIONS Heol Ddu
Detached
£600,000
Mar 2023
CWMCLEDDAU COTTAGE Heol Ddu
Detached
£365,000
Nov 2022
HOLLY COTTAGE Heol Ddu
Detached
£450,000
Mar 2022
Street Rankings — SA18
Streets ranked by 3-year average sale price. Showing positions 12–21 of 243.
| # | Street | 3Y Avg |
|---|---|---|
| 12 | Yr Hafod | £380,000 |
| 12 | Oak Tree Close | £380,000 |
| 14 | Maidens Grove | £371,000 |
| 15 | Ffordd Y Deri | £363,500 |
| 16 | Heol Ddu | £356,607 |
| 17 | Parc Bwtrimawr | £356,250 |
| 18 | Heol Lotwen | £355,000 |
| 19 | Llys Tirnant | £351,667 |
| 20 | Bryncethin Road | £351,250 |
| 21 | Maes Yr Helyg | £340,000 |
Property Mix
Type
Tenure
EPC Ratings
20 of 27 properties have an EPC record
Avg floor area: 1,701 sq ft (158 m²)
District Context — SA18
SA18 covers the Ammanford and Betws areas in Carmarthenshire, south Wales, situated in the western valleys of the region. It is a rural and semi-rural locality with a character rooted in former mining heritage, now offering quieter residential appeal.
Average Property Price - SA18
£217,196
17
National percentile
12 month avg at 30 Sep 2026
Average Net Household Income - SA18
£32,696
17
National percentile
2023 census data
10-Year Annualised Price Growth - SA18
5.1%
94
National percentile
Estimate at 30 Sep 2026
10-Year Annualised Rent Growth - SA
3.9%
50
National percentile
Estimate at 30 Sep 2026