| 1, Belsize Square, London | Freehold | 449 m² | £5,000,000 (2009) |
| 5A Belsize Square, London | - | 66 m² | - |
| 10F Belsize Square, London | Leasehold | 86 m² | £825,000 (2016) |
| 12C Belsize Square, London | Leasehold | 98 m² | £1,835,500 (2016) |
| 14A, Belsize Square, London | Leasehold | 120 m² | £1,585,000 (2020) |
| 16A, Belsize Square, London | Leasehold | 106 m² | £640,000 (2004) |
| 16F Belsize Square, London | - | 50 m² | - |
| 17A Belsize Square, London | Leasehold | 121 m² | £1,000,000 (2011) |
| 17D Belsize Square, London | Leasehold | 98 m² | £475,000 (2004) |
| 18A, Belsize Square, London | Leasehold | 111 m² | £1,490,000 (2019) |
| 19 Belsize Square, London | Freehold | 445 m² | £5,600,000 (2021) |
| 21, Belsize Square, London | - | 441 m² | - |
| Flat 1, 8 Belsize Square, London | Leasehold | 211 m² | £560,000 (1999) |
| Flat 1, 9, Belsize Square, London | Leasehold | 101 m² | £1,200,000 (2021) |
| Flat 1, 13, Belsize Square, London | Leasehold | 113 m² | £1,400,000 (2019) |
| Flat 1, 15 Belsize Square, London | - | 210 m² | - |
| Flat 1, 18 Belsize Square, London | - | 100 m² | - |
| Flat 1, 22 Belsize Square, London, London | Leasehold | 118 m² | £1,560,000 (2014) |
| Flat 2, 6 Belsize Square, London | Leasehold | 48 m² | £165,000 (1998) |
| Flat 2, 8 Belsize Square, London | Leasehold | 55 m² | £282,000 (2000) |
| Flat 2, 9 Belsize Square, London, London | - | 99 m² | - |
| Flat 2, 11 Belsize Square, London | Leasehold | 104 m² | £1,050,000 (2011) |
| Flat 2, 13 Belsize Square, London | - | 101 m² | - |
| Flat 2, 15 Belsize Square, London | Leasehold | 99 m² | £1,275,000 (2018) |
| Flat 2, 22 Belsize Square, London | Leasehold | 102 m² | £1,450,000 (2015) |
| Flat 3, 6 Belsize Square, London | Leasehold | 43 m² | £238,000 (2003) |
| Flat 3, 8 Belsize Square, London | Leasehold | 42 m² | £225,000 (2001) |
| Flat 3, 9 Belsize Square, London | - | 41 m² | - |
| Flat 3, 11 Belsize Square, London | Leasehold | 97 m² | £160,000 (2004) |
| Flat 3, 18 Belsize Square, London | Leasehold | 134 m² | £1,960,000 (2015) |
| Flat 4, 8 Belsize Square, London | Leasehold | 50 m² | £585,000 (2012) |
| Flat 4, 9 Belsize Square, London | - | 39 m² | - |
| Flat 4, 11 Belsize Square, London | - | 48 m² | - |
| Flat 4, 13 Belsize Square, London | - | 92 m² | - |
| Flat 4, 22 Belsize Square, London | Leasehold | 95 m² | £1,330,000 (2022) |
| Flat 5, 8 Belsize Square, London | Leasehold | 89 m² | £1,090,000 (2024) |
| Flat 5, 11 Belsize Square, London | Leasehold | 38 m² | £97,000 (1996) |
| Flat 5, 22 Belsize Square, London | Leasehold | 69 m² | £1,000,000 (2022) |
| Flat 6, 9 Belsize Square, London | - | 71 m² | - |
| Flat A, 20 Belsize Square, London | - | 205 m² | - |
| Flat B, 14 Belsize Square, London | Leasehold | 92 m² | £755,000 (2007) |
| Flat B, 17 Belsize Square, London | Leasehold | 92 m² | £625,000 (2005) |
| Flat B, 20 Belsize Square, London | - | 205 m² | - |
| Flat C , 16 Belsize Square, London | Leasehold | 60 m² | £475,000 (2010) |
| Flat C, 3 Belsize Square, London | Leasehold | 36 m² | £317,500 (2007) |
| Flat C, 4 Belsize Square, London | - | 43 m² | - |
| Flat C, 14 Belsize Square, London | - | 121 m² | - |
| Flat D, 10 Belsize Square, London | Leasehold | 46 m² | £617,500 (2023) |
| Flat E, 4 Belsize Square, London | Leasehold | 42 m² | £519,000 (2022) |
| Flat E, 10 Belsize Square, London | Leasehold | 41 m² | £625,000 (2013) |
| Flat E, 17 Belsize Square, London | - | 57 m² | - |
| Flat F, 4 Belsize Square, London | - | 41 m² | - |
| Flat G, 16 Belsize Square, London | Leasehold | 42 m² | £602,500 (2016) |
| Garden Flat A, 15 Belsize Square, London | Leasehold | 114 m² | £1,625,000 (2022) |
| Raised Ground Floor Flat, 5 Belsize Square, London | - | 102 m² | - |
| Top Floor Flat, 5 Belsize Square, London | - | 78 m² | - |
