| 11 Seymour Street, Mountain Ash, CF45 4BL | Jun 2024 | £115,000 | Terraced | Freehold |
| 9 Seymour Street, Mountain Ash, CF45 4BL | Feb 2023 | £171,500 | Terraced | Freehold |
| 41 Seymour Street, Mountain Ash, CF45 4BL | Nov 2022 | £140,000 | Terraced | Freehold |
| 3 Seymour Street, Mountain Ash, CF45 4BL | Apr 2022 | £58,000 | Terraced | Freehold |
| 37 Seymour Street, Mountain Ash, CF45 4BL | Dec 2021 | £85,000 | Terraced | Freehold |
| 34 Seymour Street, Mountain Ash, CF45 4BL | Nov 2021 | £63,250 | Terraced | Freehold |
| 29 Seymour Street, Mountain Ash, CF45 4BL | Jun 2021 | £75,000 | Terraced | Freehold |
| 27 Seymour Street, Mountain Ash, CF45 4BL | Feb 2021 | £83,000 | Terraced | Freehold |
| 39 Seymour Street, Mountain Ash, CF45 4BL | Dec 2020 | £94,000 | Terraced | Freehold |
| 14 Seymour Street, Mountain Ash, CF45 4BL | Oct 2020 | £68,500 | Terraced | Freehold |
| 35 Seymour Street, Mountain Ash, CF45 4BL | Apr 2020 | £93,500 | Terraced | Freehold |
| 4 Seymour Street, Mountain Ash, CF45 4BL | Aug 2019 | £59,000 | Terraced | Freehold |
| 7 Seymour Street, Mountain Ash, CF45 4BL | Jul 2019 | £135,000 | Terraced | Freehold |
| 38 Seymour Street, Mountain Ash, CF45 4BL | Nov 2017 | £67,500 | Terraced | Freehold |
| 8 Seymour Street, Mountain Ash, CF45 4BL | Dec 2016 | £69,500 | Terraced | Freehold |
| 43 Seymour Street, Mountain Ash, CF45 4BL | May 2015 | £65,000 | Terraced | Freehold |
| 28 Seymour Street, Mountain Ash, CF45 4BL | Jun 2014 | £85,000 | Terraced | Freehold |
| 2 Seymour Street, Mountain Ash, CF45 4BL | Aug 2013 | £71,000 | Terraced | Freehold |
| 23 Seymour Street, Mountain Ash, CF45 4BL | Mar 2012 | £84,000 | Terraced | Freehold |
| 42 Seymour Street, Mountain Ash, CF45 4BL | Jan 2012 | £58,000 | Terraced | Freehold |
| 36 Seymour Street, Mountain Ash, CF45 4BL | May 2011 | £64,000 | Terraced | Freehold |
| 41A Seymour Street, Mountain Ash, CF45 4BL | Sep 2008 | £44,000 | Terraced | Freehold |
| 19 Seymour Street, Mountain Ash, CF45 4BL | Nov 2007 | £73,000 | Terraced | Freehold |
| 31 Seymour Street, Mountain Ash, CF45 4BL | Jun 2007 | £98,500 | Terraced | Freehold |
| 16 Seymour Street, Mountain Ash, CF45 4BL | Jun 2006 | £92,000 | Terraced | Freehold |
| 20 Seymour Street, Mountain Ash, CF45 4BL | Dec 2003 | £58,950 | Terraced | Freehold |
| 30 Seymour Street, Mountain Ash, CF45 4BL | Jul 2003 | £52,950 | Terraced | Freehold |
| 32 Seymour Street, Mountain Ash, CF45 4BL | May 2003 | £40,000 | Terraced | Freehold |
| 26 Seymour Street, Mountain Ash, CF45 4BL | Feb 2003 | £49,995 | Terraced | Freehold |
| 22 Seymour Street, Mountain Ash, CF45 4BL | Jun 2001 | £30,525 | Terraced | Freehold |
| 12 Seymour Street, Mountain Ash, CF45 4BL | Dec 1995 | £13,000 | Terraced | Freehold |