| 39, Onslow Square, London | Leasehold | 192 m² | £3,250,000 (2010) |
| 41 Onslow Square, London | Leasehold | 277 m² | £2,675,000 (2006) |
| 43A Onslow Square, London | - | 92 m² | - |
| 57A Onslow Square, London | - | 48 m² | - |
| 59, Onslow Square, London | - | 157 m² | - |
| Flat 1, 43, Onslow Square, London | Leasehold | 204 m² | £5,100,000 (2013) |
| Flat 2, 43 Onslow Square, London | Leasehold | 198 m² | £3,750,000 (2023) |
| Flat 2, 55, Onslow Square, London | Leasehold | 142 m² | £4,490,000 (2011) |
| Flat 3, 43 Onslow Square, London, London | Leasehold | 199 m² | £4,100,000 (2021) |
| Flat 3, 55, Onslow Square, London | Leasehold | 204 m² | £3,725,000 (2022) |
| Flat 4, 43, Onslow Square, London | Leasehold | 174 m² | £4,350,000 (2011) |
| Flat 4, 51 Onslow Square, London | Leasehold | 128 m² | £2,300,000 (2009) |
| Flat 5, 51 Onslow Square, London | - | 70 m² | - |
| Flat 5, 55 Onslow Square, London | Leasehold | 227 m² | £800,000 (1995) |
| Flat 6, 51 Onslow Square, London | Leasehold | 127 m² | £985,000 (2005) |
| Flat 6, 55, Onslow Square, London | Leasehold | 163 m² | £2,150,000 (2009) |
| Flat 7, 55 Onslow Square, London | Leasehold | 140 m² | £3,150,000 (2014) |
| Flat D, 43 Onslow Square, London | - | 24 m² | - |
| Ground Floor Flat, 47 Onslow Square, London | Leasehold | 189 m² | £4,950,000 (2020) |
| Lower Ground, 49 Onslow Square, London | Leasehold | 111 m² | £875,000 (2006) |
