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)
75, William Street, Ystrad, CF41 7QY -	25 Jul 2025	£49,995 B	69 m² 742 sqft	£724 £67	Terrace (3 bed)
22, William Street, Ystrad, CF41 7QR -	01 Jul 2025	£88,000	56 m² 602 sqft	£1,571 £145	Terrace (3 bed)
21, William Street, Ystrad, CF41 7QR	21 Mar 2025	£182,250	120 m² 1291 sqft	£1,518 £141	Terrace (2 bed)
Flat 1 93, William Street, Ystrad, CF41 7QY	07 Feb 2025	£15,000 B			Other
20, William Street, Ystrad, CF41 7QR -	25 Oct 2024	£146,000	124 m² 1334 sqft	£1,177 £109	Detached (3 bed)
109, William Street, Ystrad, CF41 7QY	28 Jun 2024	£145,000 B	40 m² 430 sqft	£3,625 £336	Other
126, William Street, Ystrad, CF41 7QS -	27 Feb 2024	£68,000 B	92 m² 990 sqft	£739 £68	Terrace (3 bed)
68, William Street, Ystrad, CF41 7QY	03 Nov 2023	£55,000 B	120 m² 1291 sqft	£458 £42	Terrace (3 bed)
Tenby House, 19, William Street, Ystrad, CF41 7QR -	25 Sep 2023	£170,000	107 m² 1151 sqft	£1,588 £147	Terrace (3 bed)
7, William Street, Ystrad, CF41 7QR	12 Jun 2023	£67,000 B	78 m² 839 sqft	£858 £79	Terrace (3 bed)
3, William Street, Ystrad, CF41 7QR	13 Jan 2023	£120,000	80 m² 861 sqft	£1,500 £139	Terrace (3 bed)
6, William Street, Ystrad, CF41 7QR -	02 Dec 2022	£93,000	65 m² 699 sqft	£1,430 £132	Terrace (3 bed)
37, William Street, Ystrad, CF41 7QU	20 Oct 2022	£133,500	66 m² 710 sqft	£2,022 £187	Terrace (2 bed)
Flat 5 William Court, William Street, Ystrad, CF41 7QY -	12 Oct 2022	£41,000	90 m² 968 sqft	£455 £42	Flat (3 bed)
108, William Street, Ystrad, CF41 7QY	03 Oct 2022	£75,000 B	56 m² 602 sqft	£1,339 £124	Terrace (2 bed)
69, William Street, Ystrad, CF41 7QY -	07 Jun 2022	£82,000 B	113 m² 1216 sqft	£725 £67	Terrace (3 bed)
96, William Street, Ystrad, CF41 7QY -	29 Apr 2022	£80,000	109 m² 1173 sqft	£733 £68	Terrace (3 bed)
116, William Street, Ystrad, CF41 7QS -	08 Apr 2022	£80,000	72 m² 775 sqft	£1,111 £103	Terrace (2 bed)
136, William Street, Ystrad, CF41 7QS	18 Mar 2022	£94,000	78 m² 839 sqft	£1,205 £111	Terrace (3 bed)
39, William Street, Ystrad, CF41 7QU -	21 Jan 2022	£115,000	111 m² 1194 sqft	£1,036 £96	Terrace (3 bed)
121, William Street, Ystrad, CF41 7QS -	16 Nov 2021	£93,000	95 m² 1022 sqft	£978 £90	Terrace (3 bed)
16, William Street, Ystrad, CF41 7QR -	29 Oct 2021	£85,000	72 m² 775 sqft	£1,180 £109	Terrace (3 bed)
78, William Street, Ystrad, CF41 7QY	29 Sep 2021	£19,000 B			Other
80, William Street, Ystrad, CF41 7QY	30 Jun 2021	£39,999 B			Other
100, William Street, Ystrad, CF41 7QY -	24 May 2021	£120,000	141 m² 1517 sqft	£851 £79	Terrace (3 bed)
113, William Street, Ystrad, CF41 7QS	12 Mar 2021	£60,000	142 m² 1528 sqft	£422 £39	Terrace (3 bed)
111, William Street, Ystrad, CF41 7QS	04 Feb 2021	£110,000			Terrace
85, William Street, Ystrad, CF41 7QY	08 Jun 2020	£76,500			Terrace
55, William Street, Ystrad, CF41 7QU -	23 Jan 2020	£123,000	94 m² 1011 sqft	£1,308 £121	Terrace (3 bed)
42, William St	£86,500 B Sep-2025	68 731	1,272 118
75, William St -	£49,995 B Jul-2025	69 742	724 67
22, William St -	£88,000 Jul-2025	56 602	1,571 145
21, William St	£182,250 Mar-2025	120 1291	1,518 141
Flat 1 93, William St	£15,000 B Feb-2025
20, William St -	£146,000 Oct-2024	124 1334	1,177 109
109, William St	£145,000 B Jun-2024	40 430	3,625 336
126, William St -	£68,000 B Feb-2024	92 990	739 68
68, William St	£55,000 B Nov-2023	120 1291	458 42
Tenby House, 19, William St -	£170,000 Sep-2023	107 1151	1,588 147
7, William St	£67,000 B Jun-2023	78 839	858 79
3, William St	£120,000 Jan-2023	80 861	1,500 139
6, William St -	£93,000 Dec-2022	65 699	1,430 132
37, William St	£133,500 Oct-2022	66 710	2,022 187
Flat 5 William Court, William St -	£41,000 Oct-2022	90 968	455 42
108, William St	£75,000 B Oct-2022	56 602	1,339 124
69, William St -	£82,000 B Jun-2022	113 1216	725 67
96, William St -	£80,000 Apr-2022	109 1173	733 68
116, William St -	£80,000 Apr-2022	72 775	1,111 103
136, William St	£94,000 Mar-2022	78 839	1,205 111
39, William St -	£115,000 Jan-2022	111 1194	1,036 96
121, William St -	£93,000 Nov-2021	95 1022	978 90
16, William St -	£85,000 Oct-2021	72 775	1,180 109
78, William St	£19,000 B Sep-2021
80, William St	£39,999 B Jun-2021
100, William St -	£120,000 May-2021	141 1517	851 79
113, William St	£60,000 Mar-2021	142 1528	422 39
111, William St	£110,000 Feb-2021
85, William St	£76,500 Jun-2020
55, William St -	£123,000 Jan-2020	94 1011	1,308 121

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 roughly 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 roughly 3 home sales per year .
The average size of all the properties on William Street is 88 m2 (947 sqft).