| 15 Duncan Street, St. Helens | - | 72 m² | - |
| 18 Duncan Street, St. Helens | Leasehold | 64 m² | £91,612 (2022) |
| 19 Duncan Street, St Helens, St Helens | Leasehold | 66 m² | £66,000 (2020) |
| 20 Duncan Street, St. Helens | Leasehold | 56 m² | £105,000 (2025) |
| 21, Duncan Street, St. Helens | Leasehold | 64 m² | £25,750 (1999) |
| 22 Duncan Street, St. Helens | - | 56 m² | - |
| 23, Duncan Street, St. Helens | Leasehold | 69 m² | £73,000 (2019) |
| 26, Duncan Street, St. Helens | - | 59 m² | - |
| 27 Duncan Street, St. Helens | Leasehold | 58 m² | £18,250 (2001) |
| 28 Duncan Street, St Helens | Leasehold | 65 m² | £85,000 (2024) |
| 29 Duncan Street, St Helens, St Helens | Leasehold | 57 m² | £42,000 (2003) |
| 31, Duncan Street, St. Helens | - | 71 m² | - |
| 32 Duncan Street, St. Helens | Leasehold | 74 m² | £58,000 (2020) |
| 33, Duncan Street, St. Helens | Leasehold | 64 m² | £64,000 (2021) |
| 34, Duncan Street, St. Helens | Leasehold | 62 m² | £26,000 (2002) |
| 35 Duncan Street, St Helens, St Helens | Leasehold | 65 m² | £40,000 (2020) |
| 36 Duncan Street, St Helens, St Helens | Leasehold | 59 m² | £81,700 (2006) |
| 37 Duncan Street, St. Helens | Leasehold | 64 m² | £21,000 (1995) |
| 38, Duncan Street, St. Helens | Freehold | 66 m² | £68,000 (2018) |
| 39, Duncan Street, St. Helens | Leasehold | 69 m² | £59,999 (2004) |
| 40, Duncan Street, St. Helens | - | 70 m² | - |
| 41, Duncan Street, St. Helens | - | 88 m² | - |
| 46 Duncan Street, St. Helens | Leasehold | 71 m² | £90,000 (2024) |