William Street, Ystradgynlais

15 homes · mostly 1900-1929 end-terrace · SA9 1AT

13 of 15 graded homes sit below their potential — on average 2 grades of headroom.

D
Street Grade
The most common grade among this street’s current certificates. Average score 58.7.

Grade distribution

Current certificates, 15 graded homes.

1
1
9
4
ABCDEFG

Price statistics

HM Land Registry price paid data since 1995.

£155,161
average, last 10 years
33
sales since 1995
£163,000
latest sale, 19 December 2025
26 · 19 December 2025£163,000
2 · 18 July 2025£209,950
Erw Las, 5 · 16 May 2025£140,000
20 · 15 December 2023£125,000
15 · 26 March 2021£127,000

Homes on William Street

Pick an address to see its Report Card.

AddressGrade → potential
2 William StreetD→ B3 William StreetE→ B5 William StreetE→ B6 William StreetE→ B7 William StreetD→ C8 William StreetC→ B9 William StreetD→ B10 William StreetE→ B15 William StreetD→ D19 William StreetD→ D20 William StreetD→ B21 William StreetD→ B22 William StreetD→ B26 William StreetD→ CTy Gardd, William StreetB→ A

Other streets in SA9

DBrecon RoadDLluestCPenybrynCYnyscedwyn RoadDYnyswenCPenywern RoadDVarteg RoadDDolfain