| 1A, Thornhill Square, London | Leasehold | 87 m² | £752,500 (2023) |
| 5 Thornhill Square, Islington, London, London | Freehold | 190 m² | £2,860,000 (2022) |
| 7 Thornhill Square, London | Freehold | 191 m² | £1,400,000 (2007) |
| 10 Thornhill Square, Islington, London, London | - | 206 m² | - |
| 11C Thornhill Square, London | Leasehold | 40 m² | £483,000 (2024) |
| 12 Thornhill Square, London | Freehold | 189 m² | £1,851,888 (2018) |
| 13, Thornhill Square, London | - | 196 m² | - |
| 14 Thornhill Square, London | Freehold | 260 m² | £805,000 (2005) |
| 15 Thornhill Square, London | Freehold | 207 m² | £2,224,000 (2014) |
| 16 Thornhill Square, London | Freehold | 184 m² | £2,750,500 (2024) |
| 21 Thornhill Square, London | Freehold | 198 m² | £2,290,000 (2016) |
| 22, Thornhill Square, London | Freehold | 197 m² | £1,999,999 (2013) |
| 23, Thornhill Square, London | Freehold | 180 m² | £385,000 (1995) |
| 24 Thornhill Square, London | Freehold | 172 m² | £2,500,000 (2024) |
| 25B Thornhill Square, London | Leasehold | 33 m² | £220,000 (2003) |
| 26, Thornhill Square, London | Freehold | 189 m² | £2,200,000 (2018) |
| 28 Thornhill Square, London | Freehold | 211 m² | £800,000 (2004) |
| 29, Thornhill Square, London | - | 81 m² | - |
| 32A Thornhill Square, London | Leasehold | 54 m² | £475,000 (2014) |
| 32C Thornhill Square, London | Leasehold | 41 m² | £585,000 (2024) |
| Flat 2, 1 Thornhill Square, London | Leasehold | 66 m² | £895,000 (2024) |
| Flat 4, 1 Thornhill Square, London | Leasehold | 92 m² | £825,000 (2021) |
| Flat B, 11 Thornhill Square, London | - | 34 m² | - |
| Flat C, 25 Thornhill Square, Islington, London | Leasehold | 39 m² | £470,000 (2015) |
| Flat D, 32 Thornhill Square, London | - | 82 m² | - |
