| 1, Houghton Square, London | - | 63 m² | - |
| 1A Houghton Square, London | Leasehold | 56 m² | £390,000 (2025) |
| 2, Houghton Square, London | - | 59 m² | - |
| 2A Houghton Square, London | - | 44 m² | - |
| 4 Houghton Square, London | - | 64 m² | - |
| 5 Houghton Square, London | Leasehold | 62 m² | £499,950 (2014) |
| 7, Houghton Square, London | Leasehold | 77 m² | £512,500 (2023) |
| 8 Houghton Square, London | Leasehold | 71 m² | £359,950 (2006) |
| 9, Houghton Square, London | Leasehold | 42 m² | £399,950 (2015) |
| 10 Houghton Square, London | Leasehold | 76 m² | £340,000 (2006) |
| 11 Houghton Square, London | Leasehold | 41 m² | £440,000 (2016) |
| 12, Houghton Square, London | Leasehold | 112 m² | £410,000 (2011) |
| 13 Houghton Square, London | Leasehold | 44 m² | £235,000 (2006) |
| 14, Houghton Square, London | - | 76 m² | - |
| 15 Houghton Square, London | Leasehold | 68 m² | £364,950 (2006) |
| 17, Houghton Square, London | Leasehold | 72 m² | £323,000 (2006) |
| 18 Houghton Square, London | Leasehold | 85 m² | £355,000 (2006) |
| 19, Houghton Square, London | Leasehold | 83 m² | £400,000 (2011) |
| 20 Houghton Square, London | Leasehold | 74 m² | £640,000 (2017) |
| 21 Houghton Square, London, London | Leasehold | 182 m² | £972,500 (2015) |
