| 4 William Street, Trethomas, Caerphilly, CF83 8DQ | Jan 2026 | £132,000 | Terraced | Freehold |
| 26 William Street, Trethomas, Caerphilly, CF83 8DQ | Dec 2025 | £205,000 | Terraced | Freehold |
| 6 William Street, Trethomas, Caerphilly, CF83 8DQ | Oct 2025 | £154,000 | Terraced | Freehold |
| 7 William Street, Trethomas, Caerphilly, CF83 8DQ | Sep 2025 | £140,000 | Terraced | Freehold |
| 13 William Street, Trethomas, Caerphilly, CF83 8DQ | Oct 2024 | £160,000 | Terraced | Freehold |
| 41 William Street, Trethomas, Caerphilly, CF83 8DQ | Aug 2024 | £157,000 | Terraced | Freehold |
| 17 William Street, Trethomas, Caerphilly, CF83 8DQ | Apr 2024 | £175,000 | Terraced | Freehold |
| 49 William Street, Trethomas, Caerphilly, CF83 8DQ | Nov 2023 | £153,000 | Terraced | Freehold |
| 9 William Street, Trethomas, Caerphilly, CF83 8DQ | Nov 2022 | £161,000 | Terraced | Freehold |
| 35 William Street, Trethomas, Caerphilly, CF83 8DQ | Jun 2022 | £155,000 | Terraced | Freehold |
| 37 William Street, Trethomas, Caerphilly, CF83 8DQ | Nov 2020 | £115,000 | Terraced | Freehold |
| 2 William Street, Trethomas, Caerphilly, CF83 8DQ | Feb 2019 | £122,000 | Terraced | Freehold |
| 8 William Street, Trethomas, Caerphilly, CF83 8DQ | Feb 2018 | £118,500 | Terraced | Freehold |
| 20 William Street, Trethomas, Caerphilly, CF83 8DQ | Feb 2017 | £73,000 | Terraced | Freehold |
| 29 William Street, Trethomas, Caerphilly, CF83 8DQ | Oct 2015 | £100,000 | Terraced | Freehold |
| 25 William Street, Trethomas, Caerphilly, CF83 8DQ | Jul 2015 | £108,000 | Terraced | Freehold |
| 1 William Street, Trethomas, Caerphilly, CF83 8DQ | May 2013 | £75,000 | Terraced | Freehold |
| 23 William Street, Trethomas, Caerphilly, CF83 8DQ | Aug 2011 | £95,000 | Terraced | Freehold |
| 16 William Street, Trethomas, Caerphilly, CF83 8DQ | Aug 2011 | £79,000 | Terraced | Freehold |
| 22 William Street, Trethomas, Caerphilly, CF83 8DQ | Jan 2008 | £24,000 | Terraced | Freehold |
| 31 William Street, Trethomas, Caerphilly, CF83 8DQ | Dec 2007 | £120,000 | Terraced | Freehold |
| 33 William Street, Trethomas, Caerphilly, CF83 8DQ | Aug 2003 | £85,000 | Terraced | Freehold |
| 21 William Street, Trethomas, Caerphilly, CF83 8DQ | Oct 2001 | £41,000 | Terraced | Freehold |
| 5 William Street, Trethomas, Caerphilly, CF83 8DQ | Mar 2001 | £42,500 | Terraced | Freehold |
| 43 William Street, Trethomas, Caerphilly, CF83 8DQ | Mar 2000 | £41,500 | Terraced | Freehold |
| 19 William Street, Trethomas, Caerphilly, CF83 8DQ | Jan 1999 | £37,950 | Terraced | Freehold |
| 47 William Street, Trethomas, Caerphilly, CF83 8DQ | Nov 1998 | £23,000 | Terraced | Freehold |
| 32 William Street, Trethomas, Caerphilly, CF83 8DQ | Mar 1997 | £59,950 | Semi-detached | Freehold |
| 39 William Street, Trethomas, Caerphilly, CF83 8DQ | Feb 1997 | £26,000 | Terraced | Freehold |
| 12 William Street, Trethomas, Caerphilly, CF83 8DQ | Jan 1996 | £32,000 | Terraced | Freehold |