| 121, Dumfries Street, Treorchy | Freehold | 112 m² | £117,000 (2018) |
| 122 Dumfries Street, Treorchy | Freehold | 85 m² | £207,000 (2022) |
| 123 Dumfries Street, Treorchy | - | 88 m² | - |
| 125 Dumfries Street, Treorchy | Freehold | 88 m² | £180,000 (2023) |
| 129, Dumfries Street, Treorchy | Freehold | 78 m² | £36,095 (2001) |
| 130 Dumfries Street, Treorchy, Treorchy | Freehold | 78 m² | £200,000 (2022) |
| 133, Dumfries Street, Treorchy | - | 78 m² | - |
| 134 Dumfries Street, Treorchy | Freehold | 71 m² | £107,000 (2025) |
| 135, Dumfries Street, Treorchy | Freehold | 92 m² | £85,000 (2013) |
| 136, Dumfries Street, Treorchy | Freehold | 69 m² | £80,000 (2017) |
| 138, Dumfries Street, Treorchy | - | 67 m² | - |
| 139, Dumfries Street, Treorchy | Freehold | 84 m² | £179,000 (2022) |
| 140 Dumfries Street, Treorchy | Freehold | 76 m² | £65,000 (2008) |
| 143 Dumfries Street, Treorchy | Freehold | 74 m² | £184,995 (2023) |
| 144, Dumfries Street, Treorchy | - | 85 m² | - |
| 145, Dumfries Street, Treorchy | - | 93 m² | - |
| 146, Dumfries Street, Treorchy | Freehold | 66 m² | £118,000 (2018) |
| 149, Dumfries Street, Treorchy | - | 75 m² | - |
| 150, Dumfries Street, Treorchy | Freehold | 72 m² | £77,000 (2024) |
| 151, Dumfries Street, Treorchy | Freehold | 74 m² | £78,950 (2005) |
| 152, Dumfries Street, Treorchy | - | 78 m² | - |
| 153 Dumfries Street, Treorchy | Freehold | 75 m² | £80,000 (2013) |
| 154, Dumfries Street, Treorchy | Freehold | 96 m² | £64,000 (2008) |
| 155, Dumfries Street, Treorchy | Freehold | 86 m² | £75,000 (2021) |