| 52 William Street, Trethomas, Caerphilly, CF83 8FX | May 2026 | £210,000 | Terraced | Freehold |
| 53 William Street, Trethomas, Caerphilly, CF83 8FX | Nov 2025 | £255,000 | Detached | Freehold |
| 84 William Street, Trethomas, Caerphilly, CF83 8FX | Jul 2025 | £175,000 | Terraced | Freehold |
| 56 William Street, Trethomas, Caerphilly, CF83 8FX | Jul 2025 | £162,000 | Terraced | Freehold |
| 72 William Street, Trethomas, Caerphilly, CF83 8FX | Jul 2025 | £160,000 | Terraced | Freehold |
| 78 William Street, Trethomas, Caerphilly, CF83 8FX | Nov 2024 | £185,000 | Terraced | Freehold |
| 66 William Street, Trethomas, Caerphilly, CF83 8FX | Dec 2022 | £160,000 | Terraced | Freehold |
| 70 William Street, Trethomas, Caerphilly, CF83 8FX | Jan 2022 | £125,000 | Terraced | Freehold |
| 92 William Street, Trethomas, Caerphilly, CF83 8FX | Nov 2021 | £140,000 | Terraced | Freehold |
| 55 William Street, Trethomas, Caerphilly, CF83 8FX | Jun 2021 | £205,000 | Detached | Freehold |
| 90 William Street, Trethomas, Caerphilly, CF83 8FX | Feb 2019 | £110,000 | Terraced | Freehold |
| 60 William Street, Trethomas, Caerphilly, CF83 8FX | Dec 2017 | £103,000 | Terraced | Freehold |
| 94 William Street, Trethomas, Caerphilly, CF83 8FX | May 2016 | £121,000 | Terraced | Freehold |
| 58 William Street, Trethomas, Caerphilly, CF83 8FX | Aug 2008 | £108,000 | Terraced | Freehold |
| 51 William Street, Trethomas, Caerphilly, CF83 8FX | Mar 2007 | £177,000 | Detached | Freehold |
| 86 William Street, Trethomas, Caerphilly, CF83 8FX | Oct 2006 | £107,500 | Terraced | Freehold |
| 96 William Street, Trethomas, Caerphilly, CF83 8FX | Feb 2003 | £57,000 | Terraced | Freehold |
| 62 William Street, Trethomas, Caerphilly, CF83 8FX | Jan 2002 | £11,500 | Terraced | Freehold |
| Mailboxs Ltd - Small Business Solutions, Apex House, 59 William Street, Trethomas, Caerphilly, CF83 8FX | Jun 1999 | £12,800 | Detached | Freehold |