| 1, Thornham Avenue, St. Helens | - | 83 m² | - |
| 2, Thornham Avenue, St. Helens | Freehold | 84 m² | £150,000 (2020) |
| 3 Thornham Avenue, St. Helens | Freehold | 87 m² | £155,000 (2023) |
| 7, Thornham Avenue, St. Helens | Freehold | 84 m² | £39,000 (1996) |
| 8, Thornham Avenue, St. Helens | Freehold | 88 m² | £169,000 (2021) |
| 9 Thornham Avenue, St. Helens | Freehold | 70 m² | £242,000 (2022) |
| 10, Thornham Avenue, St. Helens | Freehold | 85 m² | £130,000 (2020) |
| 17, Thornham Avenue, St. Helens | Freehold | 70 m² | £120,000 (2021) |
| 18 Thornham Avenue, St. Helens | Freehold | 89 m² | £130,000 (2008) |
| 19, Thornham Avenue, St. Helens | Freehold | 61 m² | £92,250 (2013) |
| 25, Thornham Avenue, St. Helens | Freehold | 74 m² | £115,000 (2015) |
| 29, Thornham Avenue, St. Helens | - | 85 m² | - |
| 35, Thornham Avenue, St. Helens | Freehold | 113 m² | £144,000 (2017) |
| 37, Thornham Avenue, St. Helens | - | 82 m² | - |
| 39 Thornham Avenue, St Helens, St Helens | Freehold | 96 m² | £180,000 (2021) |
| 43 Thornham Avenue, St. Helens | - | 95 m² | - |
| 45, Thornham Avenue, St. Helens | Freehold | 92 m² | £125,000 (2019) |
| 49, Thornham Avenue, St. Helens | Freehold | 90 m² | £159,950 (2019) |
| 51 Thornham Avenue, St. Helens | Freehold | 88 m² | £210,000 (2025) |
| 53, Thornham Avenue, St. Helens | - | 79 m² | - |