| 1, John Spencer Square, London | Freehold | 88 m² | £389,000 (2000) |
| 4, John Spencer Square, London | Freehold | 100 m² | £735,000 (2009) |
| 6, John Spencer Square, London | Freehold | 89 m² | £1,210,000 (2021) |
| 8 John Spencer Square, London | Freehold | 143 m² | £1,950,000 (2025) |
| 10 John Spencer Square, London | Freehold | 101 m² | £575,000 (2005) |
| 11 John Spencer Square, London | Freehold | 85 m² | £550,000 (2006) |
| 12, John Spencer Square, London | Freehold | 77 m² | £220,000 (1996) |
| 13C John Spencer Square, London | Leasehold | 52 m² | £295,000 (2006) |
| 14C John Spencer Square, London | - | 74 m² | - |
| 14D John Spencer Square, London | Leasehold | 81 m² | £771,000 (2021) |
| 14G John Spencer Square, London | Leasehold | 73 m² | £178,000 (1997) |
| 15F John Spencer Square, London | Leasehold | 50 m² | £575,000 (2019) |
| 15G John Spencer Square, London | Leasehold | 47 m² | £527,000 (2014) |
| 15H John Spencer Square, London | - | 50 m² | - |
| 16E John Spencer Square, London | - | 74 m² | - |
| 17, John Spencer Square, London | - | 75 m² | - |
| 17B John Spencer Square, London | Leasehold | 72 m² | £785,000 (2022) |
| 17D John Spencer Square, London | Leasehold | 72 m² | £820,000 (2020) |
| 18A John Spencer Square, London | - | 74 m² | - |
| 18C John Spencer Square, London | Leasehold | 69 m² | £800,000 (2017) |
| 18F John Spencer Square, London | Leasehold | 72 m² | £449,000 (2007) |
| 18G John Spencer Square, London | Leasehold | 72 m² | £817,125 (2016) |
| 19, John Spencer Square, London | - | 77 m² | - |
| 19B John Spencer Square, London | Leasehold | 73 m² | £335,000 (2005) |
| 19F John Spencer Square, London | Leasehold | 71 m² | £576,100 (2012) |
| Flat A, 14, John Spencer Square, London | Leasehold | 78 m² | £730,000 (2017) |
| Flat A, 15 John Spencer Square, London | Leasehold | 80 m² | £600,000 (2022) |
| Flat B 14 John Spencer Square, London | Leasehold | 56 m² | £459,950 (2008) |
| Flat B, 13 John Spencer Square, London | Leasehold | 47 m² | £330,000 (2008) |
| Flat C, 16 John Spencer Square, London | Leasehold | 74 m² | £862,500 (2024) |
| Flat D, 18 John Spencer Square, London | Leasehold | 74 m² | £849,000 (2015) |
| Flat E, 14, John Spencer Square, London | Leasehold | 78 m² | £755,000 (2024) |
| Flat F, 13 John Spencer Square, London | - | 80 m² | - |
| Flat F, 16 John Spencer Square, London | Leasehold | 75 m² | £700,000 (2019) |
| Flat F, 17 John Spencer Square, London | Leasehold | 57 m² | £229,950 (2000) |
| Flat G, 13 John Spencer Square, London | - | 81 m² | - |
| Flat G, 16 John Spencer Square, London | Leasehold | 74 m² | £795,000 (2024) |
| Flat G, 17 John Spencer Square, Islington, London | Leasehold | 72 m² | £775,000 (2023) |
| Flat H, 13 John Spencer Square, London | Leasehold | 82 m² | £985,000 (2025) |
| Flat H, 14 John Spencer Square, London | - | 74 m² | - |
| Flat H, 16 John Spencer Square, London | Leasehold | 75 m² | £750,000 (2016) |
| Flat H, 17 John Spencer Square, Islington, London | Leasehold | 75 m² | £824,000 (2024) |
| Flat H, 18 John Spencer Square, London | Leasehold | 73 m² | £800,000 (2025) |
