| 5A Observatory Gardens, London | Leasehold | 209 m² | £2,760,000 (2022) |
| 7, Observatory Gardens, London | Leasehold | 197 m² | £620,000 (2005) |
| 8, Observatory Gardens, London | Leasehold | 80 m² | £855,000 (2000) |
| 9, Observatory Gardens, London | Leasehold | 143 m² | £1,000,000 (1998) |
| 11 Observatory Gardens, London | Leasehold | 156 m² | £3,115,000 (2013) |
| 12, Observatory Gardens, London | - | 142 m² | - |
| 13A, Observatory Gardens, London | - | 143 m² | - |
| Flat 1, 1 Observatory Gardens, London | - | 82 m² | - |
| Flat 1, 2 Observatory Gardens, London | Leasehold | 43 m² | £601,400 (2016) |
| Flat 1, 5 Observatory Gardens, London | - | 47 m² | - |
| Flat 1, 8 Observatory Gardens, London | Leasehold | 120 m² | £739,000 (1995) |
| Flat 1, 10 Observatory Gardens, London | - | 77 m² | - |
| Flat 1, Observatory Lodge, 13 Observatory Gardens, London | Leasehold | 107 m² | £1,505,000 (2025) |
| Flat 1And Flat 2, 5 Observatory Gardens, London | - | 216 m² | - |
| Flat 2, 1 Observatory Gardens, London | Leasehold | 90 m² | £1,622,000 (2021) |
| Flat 2, 8 Observatory Gardens, London | Leasehold | 95 m² | £532,000 (1995) |
| Flat 2, 10 Observatory Gardens, London | - | 215 m² | - |
| Flat 2, 13 Observatory Gardens, London | Leasehold | 46 m² | £635,000 (2024) |
| Flat 3, 1 Observatory Gardens, London | Leasehold | 103 m² | £1,820,000 (2016) |
| Flat 3, 2 Observatory Gardens, London | Leasehold | 98 m² | £2,612,000 (2019) |
| Flat 3, 5 Observatory Gardens, London, London | Leasehold | 99 m² | £2,500,000 (2021) |
| Flat 3, 8 Observatory Gardens, London | Leasehold | 134 m² | £760,000 (1995) |
| Flat 3, 10 Observatory Gardens, London | - | 231 m² | - |
| Flat 4, 1 Observatory Gardens, London | - | 117 m² | - |
| Flat 4, 2 Observatory Gardens, London | - | 101 m² | - |
| Flat 4, 8 Observatory Gardens, London | - | 95 m² | - |
| Flat 4, 10 Observatory Gardens, London | - | 44 m² | - |
| Flat 5, 1 Observatory Gardens, London | Leasehold | 90 m² | £2,075,000 (2022) |
| Flat 5, 2 Observatory Gardens, London | Leasehold | 65 m² | £560,000 (2004) |
| Flat 5, 5 Observatory Gardens, London | Leasehold | 80 m² | £1,120,000 (2008) |
| Flat 5, 6 Observatory Gardens, London | - | 73 m² | - |
| Flat 5, 8 Observatory Gardens, London | Leasehold | 81 m² | £404,000 (1995) |
| Flat 5, 13 Observatory Gardens, London | - | 120 m² | - |
| Flat 6, 1 Observatory Gardens, London | - | 65 m² | - |
| Flat 6, 2 Observatory Gardens, London | - | 72 m² | - |
| Flat 6, 5 Observatory Gardens, London | - | 76 m² | - |
| Flat 6, 6-7 Observatory Gardens, London | Leasehold | 67 m² | £1,270,000 (1996) |
| Flat 6, 8 Observatory Gardens, London | Leasehold | 72 m² | £367,000 (1995) |
| Flat 6, 10 Observatory Gardens, London | Leasehold | 168 m² | £1,800,000 (2002) |
| Flat 6, 13 Observatory Gardens, London | Leasehold | 95 m² | £1,950,000 (2024) |
| Flat 7, 1 Observatory Gardens, London | Leasehold | 42 m² | £710,000 (2025) |
| Flat 7, 5 Observatory Gardens, London | Leasehold | 142 m² | £2,400,000 (2016) |
| Flat 8, 2 Observatory Gardens, London | - | 116 m² | - |
| Flat 8, 5 Observatory Gardens, London | - | 131 m² | - |
| Flat 8, 10 Observatory Gardens, London | Leasehold | 141 m² | £2,800,000 (2019) |
| Flat 9, 5A Observatory Gardens, Kensington, London | Leasehold | 214 m² | £1,950,000 (2018) |
| Flat 10, 10 Observatory Gardens, London, London | - | 90 m² | - |
