| 1 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 73 m² | £30,000 (2018) |
| 2 Seventh Street, Blackhall Colliery, Hartlepool | Leasehold | 72 m² | £39,999 (2026) |
| 3, Seventh Street, Blackhall Colliery, Hartlepool | - | 66 m² | - |
| 4 Seventh Street, Blackhall Colliery, Hartlepool | Leasehold | 71 m² | £39,995 (2025) |
| 5 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 74 m² | £54,000 (2023) |
| 6 Seventh Street, Blackhall Colliery, Hartlepool | Leasehold | 72 m² | £20,000 (2017) |
| 7 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 73 m² | £28,000 (2017) |
| 8 Seventh Street, Blackhall Colliery, Hartlepool | Leasehold | 72 m² | £23,500 (2023) |
| 9 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 70 m² | £74,999 (2023) |
| 10 Seventh Street, Blackhall Colliery, Hartlepool | Leasehold | 72 m² | £32,000 (2021) |
| 11 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 71 m² | £76,999 (2023) |
| 12 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 43 m² | £53,000 (2022) |
| 13 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 72 m² | £73,999 (2023) |
| 14 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 71 m² | £14,500 (2016) |
| 16, Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 74 m² | £24,500 (2025) |
| 17 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 55 m² | £32,500 (2018) |
| 18 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 72 m² | £25,250 (2017) |
| 19 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 72 m² | £88,400 (2024) |
| 20 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 73 m² | £41,500 (2022) |
| 21 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 73 m² | £47,000 (2021) |
| 22, Seventh Street, Blackhall Colliery, Hartlepool | - | 66 m² | - |
| 23 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 71 m² | £25,000 (2024) |
| 24, Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 97 m² | £35,000 (2023) |
| 25 Seventh Street, Blackhall Colliery, Hartlepool | - | 73 m² | - |
| 26, Seventh Street, Blackhall Colliery, Hartlepool | - | 66 m² | - |
| 27 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 72 m² | £114,000 (2025) |
| 28 Seventh Street, Blackhall Colliery, Hartlepool | Freehold | 58 m² | £50,000 (2021) |