| 1, Old Market Avenue, Spilsby | - | 78 m² | - |
| 2, Old Market Avenue, Spilsby | Freehold | 78 m² | £85,000 (2013) |
| 3, Old Market Avenue, Spilsby | Freehold | 79 m² | £120,000 (2021) |
| 6 Old Market Avenue, Spilsby | - | 63 m² | - |
| 7 Old Market Avenue, Spilsby | - | 63 m² | - |
| 8 Old Market Avenue, Spilsby, Spilsby | Freehold | 94 m² | £131,000 (2021) |
| 9, Old Market Avenue, Spilsby | Freehold | 88 m² | £86,500 (2019) |
| 10, Old Market Avenue, Spilsby | Freehold | 109 m² | £128,000 (2020) |
| 11, Old Market Avenue, Spilsby | - | 84 m² | - |
| 12, Old Market Avenue, Spilsby | - | 96 m² | - |
| 14 Old Market Avenue, Spilsby | Freehold | 85 m² | £38,500 (1996) |
| 15 Old Market Avenue, Spilsby | - | 84 m² | - |
| 16, Old Market Avenue, Spilsby | - | 157 m² | - |
| 17 Old Market Avenue, Spilsby | - | 90 m² | - |
| 19, Old Market Avenue, Spilsby | Freehold | 90 m² | £95,000 (2016) |
| 20 Old Market Avenue, Spilsby | - | 77 m² | - |
| 22, Old Market Avenue, Spilsby | Freehold | 79 m² | £39,000 (1999) |
| 23, Old Market Avenue, Spilsby | - | 78 m² | - |
| 24 Old Market Avenue, Spilsby | Freehold | 97 m² | £40,995 (1998) |
| 25 Old Market Avenue, Spilsby | Freehold | 79 m² | £36,750 (1997) |
| 26 Old Market Avenue, Spilsby | - | 75 m² | - |
| 27 Old Market Avenue, Spilsby | Freehold | 95 m² | £77,000 (2003) |
| 31 Old Market Avenue, Spilsby | - | 65 m² | - |
| 32 Old Market Avenue, Spilsby, Spilsby | - | 49 m² | - |
| 33, Old Market Avenue, Spilsby | - | 64 m² | - |
| 34, Old Market Avenue, Spilsby | - | 64 m² | - |
| 35 Old Market Avenue, Spilsby | - | 61 m² | - |
| 36 Old Market Avenue, Spilsby | Leasehold | 65 m² | £46,000 (2003) |
| 37 Old Market Avenue, Spilsby | - | 62 m² | - |
| 38 Old Market Avenue, Spilsby | - | 65 m² | - |
| 39 Old Market Avenue, Spilsby | - | 64 m² | - |
| 40 Old Market Avenue, Spilsby | - | 64 m² | - |
| 41 Old Market Avenue, Spilsby | - | 65 m² | - |
| 42, Old Market Avenue, Spilsby | Leasehold | 63 m² | £51,000 (2017) |
| 43, Old Market Avenue, Spilsby | - | 73 m² | - |
| 45, Old Market Avenue, Spilsby | - | 65 m² | - |
| 46, Old Market Avenue, Spilsby | - | 63 m² | - |
| 47 Old Market Avenue, Spilsby | Leasehold | 64 m² | £60,500 (2021) |
| 48, Old Market Avenue, Spilsby | - | 65 m² | - |
| 50, Old Market Avenue, Spilsby | - | 81 m² | - |
| 51 Old Market Avenue, Spilsby, Spilsby | - | 84 m² | - |
| 52 Old Market Avenue, Spilsby | - | 59 m² | - |
| 53 Old Market Avenue, Spilsby | - | 61 m² | - |
| 54, Old Market Avenue, Spilsby | - | 65 m² | - |
| 55, Old Market Avenue, Spilsby | - | 64 m² | - |
| 56, Old Market Avenue, Spilsby | - | 60 m² | - |
| 57, Old Market Avenue, Spilsby | - | 61 m² | - |
| 58, Old Market Avenue, Spilsby | - | 62 m² | - |
| 59, Old Market Avenue, Spilsby | - | 61 m² | - |
| 60, Old Market Avenue, Spilsby | - | 61 m² | - |
| 61, Old Market Avenue, Spilsby | - | 35 m² | - |
| 62, Old Market Avenue, Spilsby | - | 55 m² | - |
| 63, Old Market Avenue, Spilsby | - | 43 m² | - |
| 64, Old Market Avenue, Spilsby | - | 40 m² | - |