3Y Avg Price
£165,983
3 sales
Properties
20
Sales / Year
0.6
5-year average
Avg £/sq ft
£304
£3,277/m²
Rank in SA9
71st
of 156 streets
Last Sale
£163,000
Dec 2025
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
31 total recorded
26 William Street
Terraced
£163,000
Dec 2025
2 William Street
Semi-Detached
£209,950
Jul 2025
20 William Street
Terraced
£125,000
Dec 2023
15 William Street
Terraced
£127,000
Mar 2021
15 William Street
Terraced
£121,500
Feb 2020
TY GARDD William Street
Detached
£235,000
Nov 2019
3 William Street
Terraced
£85,000
Apr 2019
TY GARDD William Street
Detached
£190,000
Mar 2018
21 William Street
Terraced
£73,000
Jul 2015
20 William Street
Terraced
£87,000
Dec 2014
Street Rankings — SA9
Streets ranked by 3-year average sale price. Showing positions 67–76 of 156.
| # | Street | 3Y Avg |
|---|---|---|
| 67 | Samuels Road | £175,000 |
| 68 | Heol Gleien | £173,667 |
| 69 | Heol Tawe | £173,643 |
| 70 | Gwilym Road | £171,750 |
| 71 | William Street | £165,983 |
| 72 | Abercrave Terrace | £163,500 |
| 73 | Heol Maes Y Dre | £162,800 |
| 74 | Swan Lane | £162,400 |
| 75 | Woodland Road | £161,250 |
| 76 | Neath Road | £160,000 |
Property Mix
Type
Tenure
EPC Ratings
1 of 20 properties have an EPC record
Avg floor area: 1,184 sq ft (110 m²)
District Context — SA9
SA9 covers the Neath and Dulais valleys in south Wales, situated in the eastern part of Swansea. The area combines former industrial heritage with rural character, offering affordable housing in a landscape of natural beauty.
Average Property Price - SA9
£190,259
10
National percentile
Average Net Household Income - SA9
£31,986
14
National percentile
10-Year Annualised Price Growth - SA9
5.2%
92
National percentile
10-Year Annualised Rent Growth - SA
3.5%
28
National percentile