Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
42, William Street, Ystrad, CF41 7QU	24 Sep 2025	£86,500 B	68 m² 731 sqft	£1,272 £118	Terrace (2 bed)
37, William Street, Ystrad, CF41 7QU	20 Oct 2022	£133,500	66 m² 710 sqft	£2,022 £187	Terrace (2 bed)
39, William Street, Ystrad, CF41 7QU -	21 Jan 2022	£115,000	111 m² 1194 sqft	£1,036 £96	Terrace (3 bed)
55, William Street, Ystrad, CF41 7QU -	23 Jan 2020	£123,000	94 m² 1011 sqft	£1,308 £121	Terrace (3 bed)
33, William Street, Ystrad, CF41 7QU -	22 Oct 2018	£70,000	61 m² 656 sqft	£1,147 £106	Terrace (2 bed)
58, William Street, Ystrad, CF41 7QU -	02 Feb 2018	£28,000	76 m² 818 sqft	£368 £34	Terrace (3 bed)
40, William Street, Ystrad, CF41 7QU -	11 Dec 2017	£64,000	72 m² 775 sqft	£888 £82	Terrace (3 bed)
56, William Street, Ystrad, CF41 7QU -	25 May 2017	£44,950	66 m² 710 sqft	£681 £63	Terrace (3 bed)
46, William Street, Ystrad, CF41 7QU -	18 Dec 2015	£80,000	75 m² 807 sqft	£1,066 £99	Terrace (3 bed)
41, William Street, Ystrad, CF41 7QU -	27 Nov 2015	£56,500	71 m² 764 sqft	£795 £73	Terrace (3 bed)
51, William Street, Ystrad, CF41 7QU	09 Sep 2014	£110,000			Detached
51, William Street, Ystrad, CF41 7QU	09 Aug 2007	£216,000			Detached
51, William Street, Ystrad, CF41 7QU	06 Jul 2007	£14,000			Detached
50, William Street, Ystrad, CF41 7QU -	28 Sep 2006	£47,000	52 m² 559 sqft	£903 £83	Terrace (3 bed)
59, William Street, Ystrad, CF41 7QU -	15 Sep 2006	£97,000	93 m² 1001 sqft	£1,043 £96	Terrace (4 bed)
45, William Street, Ystrad, CF41 7QU	13 Sep 2004	£45,000	68 m² 731 sqft	£661 £61	Terrace (2 bed)
31, William Street, Ystrad, CF41 7QU	22 Nov 2002	£28,000			Terrace (5 bed)
38, William Street, Ystrad, CF41 7QU	19 Dec 2000	£51,500			Semi-D (3 bed)
51, William Street, Ystrad, CF41 7QU	15 Mar 1996	£25,000			Detached
36, William Street, Ystrad, CF41 7QU	17 Nov 1995	£20,000	86 m² 925 sqft	£232 £21	Terrace (3 bed)
42, William St	£86,500 B Sep-2025	68 731	1,272 118
37, William St	£133,500 Oct-2022	66 710	2,022 187
39, William St -	£115,000 Jan-2022	111 1194	1,036 96
55, William St -	£123,000 Jan-2020	94 1011	1,308 121
33, William St -	£70,000 Oct-2018	61 656	1,147 106
58, William St -	£28,000 Feb-2018	76 818	368 34
40, William St -	£64,000 Dec-2017	72 775	888 82
56, William St -	£44,950 May-2017	66 710	681 63
46, William St -	£80,000 Dec-2015	75 807	1,066 99
41, William St -	£56,500 Nov-2015	71 764	795 73
51, William St	£110,000 Sep-2014
51, William St	£216,000 Aug-2007
51, William St	£14,000 Jul-2007
50, William St -	£47,000 Sep-2006	52 559	903 83
59, William St -	£97,000 Sep-2006	93 1001	1,043 96
45, William St	£45,000 Sep-2004	68 731	661 61
31, William St	£28,000 Nov-2002
38, William St	£51,500 Dec-2000
51, William St	£25,000 Mar-1996
36, William St	£20,000 Nov-1995	86 925	232 21

The data above for William Street can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in William Street, Ystrad is £1,199 sqm (£111 per sq ft), this is based on sold house prices of the 14 most recent sales.
The majority of homes in Ton Pentre are now selling for between £990 and £1,670 per square metre (£91 and £155 per square foot) , find out more in this local analysis of CF41 7 (Ton Pentre) house prices.
There are roughly 72 homes on William Street, we would have expected approximately 10 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 14 property sales in William Street, averaging approximately 3 home sales per year .
The average size of all the properties on William Street is 88 m2 (947 sqft).