| 1, Black Cat Street, Northampton | - | 66 m² | - |
| 2 Black Cat Street, Upton | Leasehold | 86 m² | £185,500 (2007) |
| 2A, Black Cat Street, Northampton | - | 81 m² | - |
| 3 Black Cat Street, Northampton | Leasehold | 83 m² | £165,000 (2019) |
| 4 Black Cat Street, Northampton | Leasehold | 85 m² | £159,000 (2021) |
| 5 Black Cat Street, Northampton | Leasehold | 66 m² | £151,000 (2026) |
| 6, Black Cat Street, Northampton | Freehold | 147 m² | £278,500 (2016) |
| 7 Black Cat Street, Northampton | Leasehold | 83 m² | £162,000 (2018) |
| 8, Black Cat Street, Northampton | Freehold | 156 m² | £280,000 (2018) |
| 9, Black Cat Street, Northampton | Leasehold | 87 m² | £130,500 (2007) |
| 11 Black Cat Street, Northampton | Leasehold | 81 m² | £185,500 (2007) |
| 12 Black Cat Street, Northampton | Freehold | 134 m² | £285,000 (2018) |
| 14, Black Cat Street, Northampton | Freehold | 170 m² | £332,500 (2021) |
| 15, Black Cat Street, Northampton | Leasehold | 67 m² | £190,000 (2023) |
| 16 Black Cat Street, Northampton | Freehold | 201 m² | £250,500 (2015) |
| 17 Black Cat Street, Northampton | Freehold | 175 m² | £320,000 (2022) |
| 19, Black Cat Street, Northampton | Freehold | 182 m² | £312,000 (2021) |
| 21 Black Cat Street, Northampton | Freehold | 188 m² | £308,000 (2019) |
| 23, Black Cat Street, Northampton | - | 138 m² | - |
| 25 Black Cat Street, Northampton | - | 135 m² | - |
| 27, Black Cat Street, Northampton | Leasehold | 88 m² | £212,500 (2025) |