| 1, Barrett Street, Treorchy | Freehold | 79 m² | £63,000 (2015) |
| 3, Barrett Street, Treorchy | Freehold | 63 m² | £105,000 (2022) |
| 4, Barrett Street, Treorchy | Freehold | 74 m² | £76,000 (2017) |
| 5, Barrett Street, Treorchy | - | 83 m² | - |
| 6 Barrett Street, Treorchy | Freehold | 80 m² | £120,000 (2025) |
| 7, Barrett Street, Treorchy | Freehold | 71 m² | £39,000 (2010) |
| 8, Barrett Street, Treorchy | Freehold | 117 m² | £10,000 (1998) |
| 9 Barrett Street, Treorchy | Freehold | 75 m² | £71,000 (2024) |
| 10, Barrett Street, Treorchy | Freehold | 79 m² | £128,000 (2023) |
| 12, Barrett Street, Treorchy | - | 63 m² | - |
| 13 Barrett Street, Treorchy | Freehold | 86 m² | £128,000 (2023) |
| 14 Barrett Street, Treorchy | Freehold | 77 m² | £39,000 (2015) |
| 17 Barrett Street, Treorchy | - | 68 m² | - |
| 18, Barrett Street, Treorchy | Freehold | 73 m² | £36,000 (2011) |
| 19, Barrett Street, Treorchy | Freehold | 64 m² | £54,950 (2017) |
| 20, Barrett Street, Treorchy | Freehold | 97 m² | £80,000 (2022) |
| 24, Barrett Street, Treorchy | Freehold | 61 m² | £68,000 (2006) |
| 25 Barrett Street, Treorchy | Freehold | 73 m² | £60,000 (2022) |
| 30, Barrett Street, Treorchy | Freehold | 71 m² | £66,000 (2015) |
| 31 Barrett Street, Treorchy | Freehold | 75 m² | £51,500 (2006) |
| Cysgod-Y-Clawdd, Barrett Street, Treorchy | Freehold | 220 m² | £190,000 (2018) |
| Mynydd Glas, Barrett Street, Treorchy | Freehold | 158 m² | £280,000 (2021) |