| Flat 1, Cowden House, 43 William Whiffin Square, London | Leasehold | 52 m² | £340,000 (2023) |
| Flat 2 Cowden House, 43, William Whiffin Square, London | Leasehold | 47 m² | £370,000 (2023) |
| Flat 3 Cowden House, 43, William Whiffin Square, London | Leasehold | 59 m² | £375,000 (2022) |
| Flat 4, Cowden House, 43 William Whiffin Square, London | Leasehold | 88 m² | £306,000 (2013) |
| Flat 5, Cowden House, 43 William Whiffin Square, London | - | 53 m² | - |
| Flat 6, Cowden House, 43 William Whiffin Square, London | Leasehold | 46 m² | £360,000 (2016) |
| Flat 7, Cowden House, 43 William Whiffin Square, London | - | 73 m² | - |
| Flat 8 Cowden House, 43, William Whiffin Square, London | Leasehold | 88 m² | £303,000 (2013) |
| Flat 9 Cowden House, 43, William Whiffin Square, London | Leasehold | 72 m² | £450,000 (2022) |
| Flat 10, Cowden House, 43 William Whiffin Square, London | Leasehold | 47 m² | £205,000 (2013) |
| Flat 11, Cowden House, 43 William Whiffin Square, London | - | 77 m² | - |
| Flat 12, Cowden House, 43 William Whiffin Square, London | Leasehold | 89 m² | £316,000 (2013) |
| Flat 13 Cowden House, 43, William Whiffin Square, London | Leasehold | 72 m² | £265,000 (2013) |
| Flat 14, Cowden House, 43 William Whiffin Square, London | Leasehold | 46 m² | £206,500 (2013) |
| Flat 15 Cowden House, 43, William Whiffin Square, London | Leasehold | 76 m² | £400,000 (2021) |
| Flat 16 Cowden House, 43, William Whiffin Square, London | Leasehold | 88 m² | £440,000 (2015) |
