| 5 Prospect Street, Horncastle | Freehold | 78 m² | £120,000 (2024) |
| 5 The Former Chapel, Prospect Street, Horncastle | - | 42 m² | - |
| 5A Prospect Street, Horncastle | Freehold | 56 m² | £135,000 (2019) |
| 6 The Former Chapel, Prospect Street, Horncastle | - | 52 m² | - |
| 7 Prospect Street, Horncastle | Freehold | 54 m² | £48,000 (1998) |
| 9, Prospect Street, Horncastle | Freehold | 64 m² | £127,500 (2014) |
| 11, Prospect Street, Horncastle | Freehold | 59 m² | £89,000 (2014) |
| 13, Prospect Street, Horncastle | Freehold | 55 m² | £45,000 (2005) |
| 16, Prospect Street, Horncastle | Freehold | 80 m² | £115,000 (2014) |
| 17 Prospect Street, Horncastle | Freehold | 91 m² | £149,950 (2024) |
| 18 Prospect Street, Horncastle | Freehold | 81 m² | £225,000 (2023) |
| 19 Prospect Street, Horncastle | Freehold | 91 m² | £84,000 (2006) |
| 20, Prospect Street, Horncastle | Freehold | 87 m² | £125,000 (2013) |
| 22, Prospect Street, Horncastle | - | 57 m² | - |
| 23, Prospect Street, Horncastle | - | 52 m² | - |
| 24, Prospect Street, Horncastle | Freehold | 57 m² | £129,500 (2019) |
| 25, Prospect Street, Horncastle | Freehold | 53 m² | £78,500 (2019) |
| 26, Prospect Street, Horncastle | Freehold | 54 m² | £110,000 (2016) |
| 28 Prospect Street, Horncastle, Horncastle | Freehold | 57 m² | £144,000 (2021) |
| 30, Prospect Street, Horncastle | Freehold | 58 m² | £120,000 (2015) |
| 31 Prospect Street, Horncastle | Freehold | 83 m² | £120,000 (2018) |
| 32 Prospect Street, Horncastle | - | 65 m² | - |
| 33A Prospect Street, Horncastle | Freehold | 61 m² | £130,000 (2024) |
| 33B, Prospect Street, Horncastle | Freehold | 58 m² | £118,500 (2019) |
| 34 Prospect Street, Horncastle, Horncastle | - | 71 m² | - |
| 35, Prospect Street, Horncastle | Freehold | 97 m² | £159,950 (2014) |
| 36, Prospect Street, Horncastle | Freehold | 90 m² | £175,000 (2019) |
| 36A, Prospect Street, Horncastle | Freehold | 164 m² | £240,000 (2016) |
| 40 Prospect Street, Horncastle | Freehold | 155 m² | £56,950 (2001) |
| 41, Prospect Street, Horncastle | Freehold | 70 m² | £125,000 (2017) |
| 42 Prospect Street, Horncastle | Freehold | 93 m² | £170,000 (2023) |
| 43 Prospect Street, Horncastle | Freehold | 77 m² | £175,000 (2023) |
| 44, Prospect Street, Horncastle | Freehold | 54 m² | £64,000 (2013) |
| 45, Prospect Street, Horncastle | Freehold | 93 m² | £157,000 (2005) |
| 46, Prospect Street, Horncastle | Freehold | 57 m² | £75,000 (2015) |
| 47, Prospect Street, Horncastle | - | 103 m² | - |
| 50 Prospect Street, Horncastle | Freehold | 78 m² | £135,000 (2021) |
| 54 Prospect Street, Horncastle | - | 63 m² | - |
| 56, Prospect Street, Horncastle | Freehold | 113 m² | £250,000 (2018) |
| 56B, Prospect Street, Horncastle | - | 65 m² | - |
| 58 Prospect Street, Horncastle | Freehold | 103 m² | £165,000 (2025) |
| 59 Prospect Street, Horncastle | - | 49 m² | - |
| Flat 1, The Former Chapel, Prospect Street, Horncastle | - | 52 m² | - |
| Flat 2, The Former Chapel, Prospect Street, Horncastle | - | 52 m² | - |
| Flat 3, The Former Chapel, Prospect Street, Horncastle | - | 52 m² | - |
| Flat 4, The Former Chapel, Prospect Street, Horncastle | - | 52 m² | - |
| Gill'S Paddock, Prospect Street, Horncastle | - | 180 m² | - |