| 33, William Street, Ystrad, Pentre | Freehold | 61 m² | £70,000 (2018) |
| 34, William Street, Ystrad, Pentre | - | 87 m² | - |
| 36, William Street, Ystrad, Pentre | Freehold | 86 m² | £20,000 (1995) |
| 37 William Street, Ystrad, Pentre | Freehold | 66 m² | £133,500 (2022) |
| 39, William Street, Ystrad, Pentre | Freehold | 111 m² | £115,000 (2022) |
| 40, William Street, Ystrad, Pentre | Freehold | 72 m² | £64,000 (2017) |
| 41, William Street, Ystrad, Pentre | Freehold | 71 m² | £56,500 (2015) |
| 42 William Street, Ystrad, Pentre | Freehold | 68 m² | £86,500 (2025) |
| 43, William Street, Ystrad, Pentre | - | 75 m² | - |
| 45, William Street, Ystrad, Pentre | Freehold | 68 m² | £45,000 (2004) |
| 46 William Street, Ystrad, Pentre | Freehold | 70 m² | £80,000 (2015) |
| 48, William Street, Ystrad, Pentre | - | 66 m² | - |
| 50 William Street, Ystrad, Pentre | Freehold | 52 m² | £47,000 (2006) |
| 55, William Street, Ystrad, Pentre | Freehold | 94 m² | £123,000 (2020) |
| 56 William Street, Ystrad, Pentre | Freehold | 70 m² | £44,950 (2017) |
| 57 William Street, Ystrad, Pentre | - | 88 m² | - |
| 58, William Street, Ystrad, Pentre | Freehold | 76 m² | £28,000 (2018) |
| 59, William Street, Ystrad, Pentre | Freehold | 93 m² | £97,000 (2006) |
| Flat 1, 50A William Street, Ystrad, Pentre | - | 86 m² | - |
| Flat 2A, 50A William Street, Ystrad, Pentre | - | 42 m² | - |
| Flat 2B, 50A William Street, Ystrad, Pentre | - | 33 m² | - |
| Flat 3, 51 William Street, Ystrad, Pentre | - | 83 m² | - |
| Flat 3A, 50A William Street, Ystrad, Pentre | - | 42 m² | - |
| Flat 3B, 50A William Street, Ystrad, Pentre | - | 33 m² | - |