| 12 Thomas Street, Mountain Ash, CF45 3BU | Feb 2026 | £145,000 | Terraced | Freehold |
| 36 Thomas Street, Mountain Ash, CF45 3BU | Jan 2026 | £125,000 | Terraced | Leasehold |
| 40 Thomas Street, Mountain Ash, CF45 3BU | Jun 2024 | £47,000 | Terraced | Freehold |
| 1A Thomas Street, Mountain Ash, CF45 3BU | Dec 2023 | £18,000 | Other property | Leasehold |
| 37 Thomas Street, Mountain Ash, CF45 3BU | Aug 2022 | £149,950 | Terraced | Leasehold |
| 4 Thomas Street, Mountain Ash, CF45 3BU | May 2022 | £75,000 | Terraced | Leasehold |
| 21 Thomas Street, Mountain Ash, CF45 3BU | Apr 2022 | £125,000 | Terraced | Freehold |
| 28 Thomas Street, Mountain Ash, CF45 3BU | Feb 2022 | £95,000 | Terraced | Freehold |
| 39 Thomas Street, Mountain Ash, CF45 3BU | Jan 2022 | £85,000 | Terraced | Freehold |
| 1 Thomas Street, Mountain Ash, CF45 3BU | Sep 2021 | £140,000 | Terraced | Freehold |
| 8 Thomas Street, Mountain Ash, CF45 3BU | May 2021 | £87,000 | Terraced | Leasehold |
| 14 Thomas Street, Mountain Ash, CF45 3BU | Feb 2021 | £57,500 | Terraced | Freehold |
| 16 Thomas Street, Mountain Ash, CF45 3BU | Dec 2019 | £96,000 | Terraced | Freehold |
| 18 Thomas Street, Mountain Ash, CF45 3BU | Jun 2019 | £750 | Other property | Freehold |
| 32 Thomas Street, Mountain Ash, CF45 3BU | Jun 2016 | £34,000 | Terraced | Leasehold |
| 6 Thomas Street, Mountain Ash, CF45 3BU | Mar 2016 | £44,500 | Terraced | Freehold |
| 22 Thomas Street, Mountain Ash, CF45 3BU | Aug 2013 | £67,950 | Terraced | Leasehold |
| 10 Thomas Street, Mountain Ash, CF45 3BU | Apr 2011 | £41,000 | Terraced | Leasehold |
| 26 Thomas Street, Mountain Ash, CF45 3BU | Sep 2010 | £45,000 | Terraced | Leasehold |
| 34 Thomas Street, Mountain Ash, CF45 3BU | Aug 2006 | £75,000 | Terraced | Freehold |
| 33 Thomas Street, Mountain Ash, CF45 3BU | Jun 2006 | £75,000 | Terraced | Leasehold |
| 35 Thomas Street, Mountain Ash, CF45 3BU | Nov 2004 | £52,000 | Terraced | Leasehold |
| 25 Thomas Street, Mountain Ash, CF45 3BU | Jul 2003 | £27,000 | Terraced | Leasehold |
| 17 Thomas Street, Mountain Ash, CF45 3BU | Jun 2003 | £39,950 | Terraced | Freehold |
| 29 Thomas Street, Mountain Ash, CF45 3BU | Mar 2001 | £29,000 | Terraced | Freehold |
| 2 Thomas Street, Mountain Ash, CF45 3BU | Apr 2000 | £15,000 | Terraced | Leasehold |