| 1 Helvetia Street, London | Freehold | 106 m² | £270,000 (2011) |
| 2A Helvetia Street, London | Leasehold | 48 m² | £120,000 (2011) |
| 3, Helvetia Street, London | Freehold | 139 m² | £595,000 (2019) |
| 4 Helvetia Street, London | Freehold | 149 m² | £220,000 (2009) |
| 6, Helvetia Street, London | Leasehold | 68 m² | £315,000 (2019) |
| 9, Helvetia Street, London | Freehold | 101 m² | £790,000 (2024) |
| 10, Helvetia Street, London | Leasehold | 57 m² | £135,000 (2010) |
| 10A, Helvetia Street, London | Freehold | 64 m² | £225,000 (2012) |
| 11, Helvetia Street, London | - | 100 m² | - |
| 12 Helvetia Street, London | Freehold | 150 m² | £600,000 (2025) |
| 14 Helvetia Street, London | Freehold | 128 m² | £750,000 (2024) |
| 15 Helvetia Street, London | Freehold | 137 m² | £352,000 (2007) |
| 18, Helvetia Street, London | Freehold | 101 m² | £430,000 (2014) |
| 24 Helvetia Street, London | Freehold | 110 m² | £650,000 (2023) |
| Flat 1, 9 Helvetia Street, London | - | 26 m² | - |
| Flat 2, 9 Helvetia Street, London | - | 39 m² | - |
| Flat 3, 9 Helvetia Street, London | - | 30 m² | - |
| Flat 3, 10 Helvetia Street, London | - | 19 m² | - |
| Flat 4, 9 Helvetia Street, London | - | 16 m² | - |
| Flat B, 6 Helvetia Street, London | - | 42 m² | - |
| Ground Floor Flat, 2 Helvetia Street, London | - | 68 m² | - |
| Ground Floor Flat, 17 Helvetia Street, London | - | 46 m² | - |
| Top Floor Flat, 2 Helvetia Street, London | - | 45 m² | - |
| Top Floor Flat, 10 Helvetia Street, London | - | 44 m² | - |
| Upper Flat, 20 Helvetia Street, London | Leasehold | 48 m² | £129,000 (2005) |