| 25 Castle Street, Grimsby | Freehold | 96 m² | £68,000 (2026) |
| 26 Castle Street, Grimsby | Freehold | 93 m² | £18,000 (2002) |
| 27, Castle Street, Grimsby | Freehold | 89 m² | £57,000 (2026) |
| 29 Castle Street, Grimsby | Freehold | 89 m² | £36,500 (2021) |
| 30 Castle Street, Grimsby | Freehold | 85 m² | £63,000 (2024) |
| 31 Castle Street, Grimsby | Freehold | 88 m² | £35,000 (2011) |
| 32, Castle Street, Grimsby | Freehold | 88 m² | £18,500 (2002) |
| 33, Castle Street, Grimsby | - | 90 m² | - |
| 35, Castle Street, Grimsby | Freehold | 89 m² | £60,500 (2021) |
| 36, Castle Street, Grimsby | Freehold | 89 m² | £38,000 (2017) |
| 37 Castle Street, Grimsby | - | 78 m² | - |
| 38 Castle Street, Grimsby | Freehold | 88 m² | £55,500 (2024) |
| 39, Castle Street, Grimsby | Freehold | 87 m² | £30,000 (2014) |
| 40 Castle Street, Grimsby | Freehold | 82 m² | £54,000 (2024) |
| 41 Castle Street, Grimsby | Freehold | 88 m² | £47,000 (2024) |
| 42, Castle Street, Grimsby | Freehold | 234 m² | £52,000 (2005) |
| 43 Castle Street, Grimsby | Freehold | 87 m² | £52,000 (2024) |
| 44 Castle Street, Grimsby | Freehold | 86 m² | £49,950 (2005) |
| 45, Castle Street, Grimsby | Freehold | 86 m² | £46,000 (2024) |
| 46, Castle Street, Grimsby | Freehold | 87 m² | £31,000 (2016) |
| 47, Castle Street, Grimsby | Freehold | 86 m² | £52,000 (2007) |
| 48, Castle Street, Grimsby | Freehold | 91 m² | £35,000 (2015) |
| 49, Castle Street, Grimsby | - | 85 m² | - |
| 49A Castle Street, Grimsby | Freehold | 67 m² | £109,950 (2021) |
| 50 Castle Street, Grimsby | Freehold | 96 m² | £36,000 (2025) |
| 52 Castle Street, Grimsby | Freehold | 89 m² | £45,000 (2007) |
| 54, Castle Street, Grimsby | Freehold | 93 m² | £33,000 (2003) |
| 56, Castle Street, Grimsby | - | 91 m² | - |