| 28, Irwin Road, St. Helens | Leasehold | 80 m² | £45,500 (1995) |
| 34, Irwin Road, St. Helens | Leasehold | 86 m² | £129,000 (2016) |
| 40, Irwin Road, St. Helens | Leasehold | 80 m² | £145,000 (2007) |
| 48, Irwin Road, St. Helens | Leasehold | 95 m² | £152,500 (2019) |
| 59, Irwin Road, St. Helens | - | 81 m² | - |
| 61 Irwin Road, St. Helens | Leasehold | 83 m² | £90,000 (2011) |
| 63, Irwin Road, St. Helens | Leasehold | 61 m² | £50,000 (2016) |
| 65, Irwin Road, St. Helens | Leasehold | 63 m² | £34,000 (2000) |
| 67, Irwin Road, St. Helens | Leasehold | 64 m² | £75,000 (2014) |
| 69, Irwin Road, St. Helens | Leasehold | 63 m² | £36,000 (2000) |
| 71 Irwin Road, St. Helens | - | 63 m² | - |
| 77 Irwin Road, St. Helens | Leasehold | 62 m² | £18,250 (1999) |
| 79 Irwin Road, St. Helens | Leasehold | 56 m² | £94,000 (2026) |
| 83 Irwin Road, St. Helens | - | 60 m² | - |
| 85 Irwin Road, St. Helens | Leasehold | 65 m² | £45,500 (2003) |
| 87, Irwin Road, St. Helens | - | 56 m² | - |
| 89 Irwin Road, St. Helens | Leasehold | 62 m² | £22,000 (2001) |
| 95 Irwin Road, St. Helens | Leasehold | 59 m² | £120,000 (2025) |
| 97 Irwin Road, St. Helens | Leasehold | 55 m² | £89,000 (2004) |
| 101, Irwin Road, St. Helens | Leasehold | 113 m² | £168,000 (2018) |
| 105 Irwin Road, St. Helens | - | 83 m² | - |
| 109, Irwin Road, St. Helens | Leasehold | 81 m² | £85,000 (2013) |
| 111, Irwin Road, St. Helens | Leasehold | 74 m² | £129,000 (2017) |
| 121, Irwin Road, St. Helens | Leasehold | 82 m² | £75,000 (2016) |
