| 21 Dumfries Street, Treorchy | Freehold | 78 m² | £148,000 (2025) |
| 23, Dumfries Street, Treorchy | - | 90 m² | - |
| 25, Dumfries Street, Treorchy | Freehold | 77 m² | £90,000 (2014) |
| 27, Dumfries Street, Treorchy | - | 90 m² | - |
| 28 Dumfries Street, Treorchy | - | 112 m² | - |
| 29, Dumfries Street, Treorchy | Freehold | 63 m² | £82,000 (2020) |
| 30, Dumfries Street, Treorchy | - | 103 m² | - |
| 31, Dumfries Street, Treorchy | Freehold | 71 m² | £80,000 (2011) |
| 32 Dumfries Street, Treorchy | Freehold | 73 m² | £71,000 (2014) |
| 33 Dumfries Street, Treorchy | Freehold | 88 m² | £89,995 (2025) |
| 157 Dumfries Street, Treorchy | Freehold | 60 m² | £65,000 (2025) |
| 158 Dumfries Street, Treorchy | Freehold | 58 m² | £23,000 (1999) |
| 159, Dumfries Street, Treorchy | Freehold | 61 m² | £45,000 (2013) |
| 160, Dumfries Street, Treorchy | Freehold | 58 m² | £71,000 (2018) |
| 161, Dumfries Street, Treorchy | Freehold | 79 m² | £82,000 (2018) |
| 163, Dumfries Street, Treorchy | Freehold | 82 m² | £95,000 (2010) |
| 164, Dumfries Street, Treorchy | Freehold | 72 m² | £43,000 (2014) |
| 165 Dumfries Street, Treorchy | Freehold | 69 m² | £139,000 (2025) |
| 168, Dumfries Street, Treorchy | Freehold | 73 m² | £115,000 (2009) |
| 169, Dumfries Street, Treorchy | Freehold | 86 m² | £23,500 (1995) |
| 171 Dumfries Street, Treorchy | Freehold | 112 m² | £171,000 (2025) |
| 172, Dumfries Street, Treorchy | - | 178 m² | - |