| 1 Tallis Street, Treorchy | Freehold | 104 m² | £195,000 (2023) |
| 2, Tallis Street, Treorchy | Freehold | 106 m² | £25,000 (2002) |
| 3, Tallis Street, Treorchy | Freehold | 68 m² | £62,000 (2020) |
| 5, Tallis Street, Treorchy | Freehold | 78 m² | £43,000 (2013) |
| 6, Tallis Street, Treorchy | Freehold | 77 m² | £12,500 (1997) |
| 7 Tallis Street, Treorchy | Freehold | 73 m² | £72,000 (2019) |
| 8 Tallis Street, Treorchy | Freehold | 113 m² | £80,000 (2005) |
| 9, Tallis Street, Treorchy | - | 93 m² | - |
| 10, Tallis Street, Treorchy | Freehold | 73 m² | £42,000 (2012) |
| 11, Tallis Street, Treorchy | Freehold | 73 m² | £70,000 (2016) |
| 12, Tallis Street, Treorchy | Freehold | 68 m² | £66,000 (2021) |
| 13, Tallis Street, Treorchy | Freehold | 107 m² | £18,750 (2001) |
| 14 Tallis Street, Treorchy | - | 88 m² | - |
| 15, Tallis Street, Treorchy | Freehold | 74 m² | £63,000 (2018) |
| 16, Tallis Street, Treorchy | Freehold | 98 m² | £47,750 (2012) |
| 17 Tallis Street, Treorchy | Freehold | 86 m² | £50,000 (2020) |
| 21 Tallis Street, Treorchy | Freehold | 78 m² | £77,500 (2025) |
| 22 Tallis Street, Treorchy | Freehold | 71 m² | £71,000 (2018) |
| 24 Tallis Street, Treorchy | Freehold | 70 m² | £60,000 (2018) |
| 25, Tallis Street, Treorchy | Freehold | 80 m² | £62,000 (2020) |
| 26 Tallis Street, Treorchy | Freehold | 72 m² | £74,000 (2023) |
| 27, Tallis Street, Treorchy | - | 109 m² | - |