| 31 William Street, Abercynon, Mountain Ash, CF45 4RW | Jul 2026 | £106,000 | Terraced | Freehold |
| 23 William Street, Abercynon, Mountain Ash, CF45 4RW | May 2025 | £155,000 | Terraced | Freehold |
| 20 William Street, Abercynon, Mountain Ash, CF45 4RW | Sep 2024 | £98,000 | Terraced | Freehold |
| 29 William Street, Abercynon, Mountain Ash, CF45 4RW | Sep 2024 | £167,000 | Terraced | Freehold |
| 10 William Street, Abercynon, Mountain Ash, CF45 4RW | Apr 2023 | £159,995 | Terraced | Freehold |
| 8 William Street, Abercynon, Mountain Ash, CF45 4RW | Dec 2022 | £103,618 | Terraced | Freehold |
| 19 William Street, Abercynon, Mountain Ash, CF45 4RW | Nov 2022 | £144,950 | Terraced | Freehold |
| 24 William Street, Abercynon, Mountain Ash, CF45 4RW | Sep 2021 | £130,000 | Terraced | Freehold |
| 27 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2020 | £72,500 | Terraced | Freehold |
| 16 William Street, Abercynon, Mountain Ash, CF45 4RW | May 2019 | £105,000 | Terraced | Freehold |
| 5 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2018 | £128,500 | Terraced | Freehold |
| 22 William Street, Abercynon, Mountain Ash, CF45 4RW | Jul 2018 | £60,000 | Terraced | Freehold |
| 4 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2014 | £56,500 | Terraced | Freehold |
| 9 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2012 | £92,000 | Terraced | Freehold |
| 21 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2010 | £80,000 | Terraced | Freehold |
| 12 William Street, Abercynon, Mountain Ash, CF45 4RW | Aug 2010 | £62,000 | Terraced | Freehold |
| 25 William Street, Abercynon, Mountain Ash, CF45 4RW | Oct 2006 | £68,500 | Terraced | Freehold |
| 14 William Street, Abercynon, Mountain Ash, CF45 4RW | Feb 2000 | £17,000 | Terraced | Freehold |
| 30 William Street, Abercynon, Mountain Ash, CF45 4RW | Jul 1998 | £26,000 | Terraced | Freehold |
| 7 William Street, Abercynon, Mountain Ash, CF45 4RW | May 1998 | £33,700 | Terraced | Freehold |
| 1 William Street, Abercynon, Mountain Ash, CF45 4RW | Mar 1996 | £39,000 | Terraced | Freehold |