| 1 The Old Court, William Street, Blackwood | - | 319 m² | - |
| 2 The Old Court, William Street, Blackwood | Freehold | 282 m² | £335,000 (2025) |
| 50 William Street, Blackwood, Blackwood | Freehold | 99 m² | £115,000 (2021) |
| 52, William Street, Blackwood | Freehold | 95 m² | £175,000 (2025) |
| 54 William Street, Blackwood, Blackwood | - | 94 m² | - |
| 57, William Street, Blackwood | - | 113 m² | - |
| 59 William Street, Blackwood, Blackwood | Freehold | 98 m² | £80,000 (2011) |
| 60 William Street, Blackwood | Freehold | 90 m² | £128,000 (2018) |
| 61, William Street, Blackwood | Freehold | 82 m² | £165,000 (2025) |
| 62 William Street, Blackwood | Freehold | 95 m² | £117,000 (2019) |
| 63, William Street, Blackwood | Freehold | 114 m² | £86,000 (2006) |
| 64, William Street, Blackwood | Freehold | 124 m² | £128,000 (2018) |
| 65 William Street, Blackwood | Freehold | 101 m² | £187,500 (2025) |
| 68 William Street, Blackwood, Blackwood | Freehold | 96 m² | £122,500 (2021) |
| 69, William Street, Blackwood | Freehold | 89 m² | £185,000 (2025) |
| 70 William Street, Blackwood, Blackwood | - | 127 m² | - |
| 71, William Street, Blackwood | Freehold | 94 m² | £120,000 (2015) |
| 73, William Street, Blackwood | - | 100 m² | - |
| 74, William Street, Blackwood | Freehold | 94 m² | £148,000 (2021) |
| 76, William Street, Blackwood | Freehold | 101 m² | £101,000 (2016) |
| 78 William Street, Blackwood, Blackwood | Freehold | 477 m² | £37,500 (2002) |
| 82 William Street, Blackwood, Blackwood | Freehold | 96 m² | £187,500 (2025) |