House Price Finder

William Street

Mountain Ash · CF45 4RW

Average sold price
£83,741
32 sales since 1996
Median
£74,750
middle of every sale
Last sold
£155k
8 May 2025
Properties
21
terraced most common

Average sold price by year

06
09
10
11
12
14
17
18
19
20
21
22
23
24
25

Properties on William Street

AddressTypeLast soldPriceSales
23, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced8 May 2025£155,0002
20, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced13 Sep 2024£98,0001
29, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced9 Sep 2024£167,0004
10, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced21 Apr 2023£159,9951
8, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced19 Dec 2022£103,6181
19, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced3 Nov 2022£144,9501
24, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced17 Sep 2021£130,0002
27, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced9 Oct 2020£72,5001
16, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced29 May 2019£105,0001
5, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced3 Oct 2018£128,5002
22, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced25 Jul 2018£60,0002
31, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced15 Mar 2017£68,0003
4, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced28 Oct 2014£56,5001
9, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced12 Oct 2012£92,0001
21, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced29 Oct 2010£80,0001
12, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced6 Aug 2010£62,0002
25, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced11 Oct 2006£68,5002
14, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced10 Feb 2000£17,0001
30, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced29 Jul 1998£26,0001
7, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced22 May 1998£33,7001
1, WILLIAM STREET, ABERCYNON
CF45 4RW
Terraced21 Mar 1996£39,0001

Recent sales

DateAddressTypeTenurePrice
8 May 202523, WILLIAM STREET, ABERCYNONTerracedFreehold£155,000
13 Sep 202420, WILLIAM STREET, ABERCYNONTerracedFreehold£98,000
9 Sep 202429, WILLIAM STREET, ABERCYNONTerracedFreehold£167,000
21 Apr 202310, WILLIAM STREET, ABERCYNONTerracedFreehold£159,995
19 Dec 20228, WILLIAM STREET, ABERCYNONTerracedFreehold£103,618
3 Nov 202219, WILLIAM STREET, ABERCYNONTerracedFreehold£144,950
17 Sep 202124, WILLIAM STREET, ABERCYNONTerracedFreehold£130,000
17 Jun 202129, WILLIAM STREET, ABERCYNONTerracedFreehold£136,500
9 Oct 202027, WILLIAM STREET, ABERCYNONTerracedFreehold£72,500
13 Mar 202029, WILLIAM STREET, ABERCYNONTerracedFreehold£120,000
29 May 201916, WILLIAM STREET, ABERCYNONTerracedFreehold£105,000
8 May 201924, WILLIAM STREET, ABERCYNONTerracedFreehold£59,501
3 Oct 20185, WILLIAM STREET, ABERCYNONTerracedFreehold£128,500
25 Jul 201822, WILLIAM STREET, ABERCYNONTerracedFreehold£60,000
11 Sep 201722, WILLIAM STREET, ABERCYNONTerracedFreehold£48,000
8 Aug 20175, WILLIAM STREET, ABERCYNONTerracedFreehold£52,000
15 Mar 201731, WILLIAM STREET, ABERCYNONTerracedFreehold£68,000
17 Feb 201723, WILLIAM STREET, ABERCYNONTerracedFreehold£77,000
28 Oct 20144, WILLIAM STREET, ABERCYNONTerracedFreehold£56,500
12 Oct 20129, WILLIAM STREET, ABERCYNONTerracedFreehold£92,000
22 Dec 201129, WILLIAM STREET, ABERCYNONTerracedFreehold£92,650
29 Oct 201021, WILLIAM STREET, ABERCYNONTerracedFreehold£80,000
6 Aug 201012, WILLIAM STREET, ABERCYNONTerracedFreehold£62,000
23 Oct 200931, WILLIAM STREET, ABERCYNONTerracedFreehold£55,000
6 Apr 200931, WILLIAM STREET, ABERCYNONTerracedFreehold£80,000
11 Oct 200625, WILLIAM STREET, ABERCYNONTerracedFreehold£68,500
17 Sep 200425, WILLIAM STREET, ABERCYNONTerracedFreehold£70,000
10 Feb 200014, WILLIAM STREET, ABERCYNONTerracedFreehold£17,000
29 Jul 199830, WILLIAM STREET, ABERCYNONTerracedFreehold£26,000
22 May 19987, WILLIAM STREET, ABERCYNONTerracedFreehold£33,700
8 May 199712, WILLIAM STREET, ABERCYNONTerracedFreehold£21,800
21 Mar 19961, WILLIAM STREET, ABERCYNONTerracedFreehold£39,000

Other streets in Mountain Ash

Park StreetPenrhiwceiber RoadAbercynon RoadPentwyn AvenueCardiff RoadWoodfield TerraceWoodland StreetHigh StreetPhillip StreetForest ViewAberdare RoadGreenfield Terrace

All Mountain Ash house prices

Frequently asked questions

What is the average house price on William Street, Mountain Ash?
The average sold price on William Street is £83,741, across 32 sales since 1996. The median is £74,750 — the middle price, which a few unusually expensive sales cannot pull upward.
When did a property on William Street last sell?
The most recent recorded sale on William Street was 23, WILLIAM STREET, ABERCYNON, which sold for £155,000 on 8 May 2025.
How many properties are there on William Street?
21 separate addresses have sold on William Street since 1996, across 1 postcode (CF45 4RW). That is not the same as the number of homes on the street — a property that has never changed hands since 1995 does not appear in Land Registry records.

About this data

Every figure on this page is calculated from the 32 sales HM Land Registry has recorded on William Street since 1996 — what buyers actually paid, not asking prices or estimates. A home that has not changed hands since records began in 1995 will not appear. Sales are matched to this street by postcode and by the street component of the registered address, so a neighbouring street with a similar name is not counted. The Price Paid dataset covers England and Wales only; see Scotland and Northern Ireland.