| 21 Westminster Mansions, Great Smith Street, London, London | Leasehold | 49 m² | £192,000 (2010) |
| 45A Westminster Mansions, Great Smith Street, London | Leasehold | 35 m² | £485,000 (2018) |
| 46 Westminster Mansions, Great Smith Street, London, London | Leasehold | 30 m² | £95,000 (1996) |
| Flat 20 Westminster Mansions, Great Smith Street, London | Leasehold | 30 m² | £250,000 (2010) |
| Flat 22 Westminster Mansions, Great Smith Street, London | Leasehold | 94 m² | £345,000 (2000) |
| Flat 23, Westminster Mansions, Great Smith Street, London | - | 47 m² | - |
| Flat 24, Westminster Mansions, Great Smith Street, London | Leasehold | 70 m² | £502,000 (2022) |
| Flat 25 Westminster Mansions, Great Smith Street, London | Leasehold | 131 m² | £1,511,050 (2014) |
| Flat 26, Westminster Mansions, Great Smith Street, London | Leasehold | 35 m² | £194,500 (2004) |
| Flat 27 Westminster Mansions, Great Smith Street, London | Leasehold | 29 m² | £565,000 (2013) |
| Flat 28 Westminster Mansions, Great Smith Street, London | Leasehold | 105 m² | £1,125,000 (2021) |
| Flat 29 Westminster Mansions, Great Smith Street, London | Leasehold | 31 m² | £235,000 (2006) |
| Flat 30 Westminster Mansions, Great Smith Street, London | Leasehold | 189 m² | £2,000,000 (2014) |
| Flat 32, Westminster Mansions, Great Smith Street, London | Leasehold | 102 m² | £1,425,000 (2023) |
| Flat 33, Westminster Mansions, Great Smith Street, London | Leasehold | 30 m² | £205,000 (2004) |
| Flat 34 Westminster Mansions, Great Smith Street, London | Leasehold | 200 m² | £1,900,000 (2022) |
| Flat 35 Westminster Mansions, Great Smith Street, London | - | 49 m² | - |
| Flat 36 Westminster Mansions, Great Smith Street, London | Leasehold | 128 m² | £177,000 (1998) |
| Flat 37, Westminster Mansions, Great Smith Street, London | Leasehold | 32 m² | £480,000 (2014) |
| Flat 38, Westminster Mansions, Great Smith Street, London | Leasehold | 196 m² | £2,300,000 (2014) |
| Flat 39 Westminster Mansions, Great Smith Street, London | Leasehold | 48 m² | £575,000 (2024) |
| Flat 40, Westminster Mansions, Great Smith Street, London | Leasehold | 106 m² | £1,000,000 (2019) |
| Flat 41 Westminster Mansions, Great Smith Street, London | Leasehold | 31 m² | £276,000 (2007) |
| Flat 42, Westminster Mansions, Great Smith Street, London | Leasehold | 49 m² | £472,000 (2025) |
| Flat 44, Westminster Mansions, Great Smith Street, London | Leasehold | 42 m² | £310,500 (2006) |
| Flat 45 Westminster Mansions, Great Smith Street, London | - | 46 m² | - |
| Flat 45B, Westminster Mansions, Great Smith Street, London | Leasehold | 46 m² | £521,610 (2018) |
