| Flat 101 Northampton House, Wellington Street, Northampton | - | 34 m² | - |
| Flat 102 Northampton House, Wellington Street, Northampton | Leasehold | 60 m² | £50,500 (2009) |
| Flat 103 Northampton House, Wellington Street, Northampton | - | 75 m² | - |
| Flat 104 Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £80,000 (2006) |
| Flat 105 Northampton House, Wellington Street, Northampton | - | 57 m² | - |
| Flat 106, Northampton House, Wellington Street, Northampton | - | 54 m² | - |
| Flat 107 Northampton House, Wellington Street, Northampton | - | 43 m² | - |
| Flat 201 Northampton House, Wellington Street, Northampton | - | 57 m² | - |
| Flat 202 Northampton House, Wellington Street, Northampton | Leasehold | 33 m² | £49,995 (2015) |
| Flat 203, Northampton House, Wellington Street, Northampton | Leasehold | 36 m² | £66,000 (2003) |
| Flat 204 Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £150,000 (2004) |
| Flat 205, Northampton House, Wellington Street, Northampton | Leasehold | 39 m² | £56,003 (2025) |
| Flat 206, Northampton House, Wellington Street, Northampton | Leasehold | 40 m² | £55,000 (2015) |
| Flat 207 Northampton House, Wellington Street, Northampton | Leasehold | 57 m² | £150,000 (2004) |
| Flat 208 Northampton House, Wellington Street, Northampton | - | 53 m² | - |
| Flat 210, Northampton House, Wellington Street, Northampton | Leasehold | 51 m² | £150,000 (2004) |
| Flat 211 Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £150,000 (2004) |
| Flat 212 Northampton House, Wellington Street, Northampton | Leasehold | 55 m² | £99,000 (2018) |
| Flat 213 Northampton House, Wellington Street, Northampton | Leasehold | 45 m² | £88,000 (2005) |
| Flat 214 Northampton House, Wellington Street, Northampton | - | 48 m² | - |
| Flat 215 Northampton House, Wellington Street, Northampton | - | 53 m² | - |
| Flat 216 Northampton House, Wellington Street, Northampton | Leasehold | 76 m² | £90,000 (2006) |
| Flat 217 Northampton House, Wellington Street, Northampton | - | 53 m² | - |
| Flat 218 Northampton House, Wellington Street, Northampton | - | 48 m² | - |
| Flat 301 Northampton House, Wellington Street, Northampton | Leasehold | 55 m² | £117,000 (2003) |
| Flat 302 Northampton House, Wellington Street, Northampton | - | 35 m² | - |
| Flat 303 Northampton House, Wellington Street, Northampton | Leasehold | 40 m² | £82,000 (2003) |
| Flat 304 Northampton House, Wellington Street, Northampton | Leasehold | 58 m² | £110,250 (2003) |
| Flat 305, Northampton House, Wellington Street, Northampton | Leasehold | 39 m² | £80,000 (2018) |
| Flat 306, Northampton House, Wellington Street, Northampton | Leasehold | 39 m² | £82,500 (2003) |
| Flat 307, Northampton House, Wellington Street, Northampton | - | 60 m² | - |
| Flat 308 Northampton House, Wellington Street, Northampton | - | 57 m² | - |
| Flat 309 Northampton House, Wellington Street, Northampton | Leasehold | 63 m² | £143,600 (2003) |
| Flat 310 Northampton House, Wellington Street, Northampton | Leasehold | 47 m² | £80,000 (2007) |
| Flat 311 Northampton House, Wellington Street, Northampton | - | 53 m² | - |
| Flat 312, Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £96,000 (2017) |
| Flat 313 Northampton House, Wellington Street, Northampton | Leasehold | 39 m² | £73,350 (2003) |
| Flat 314 Northampton House, Wellington Street, Northampton | Leasehold | 56 m² | £99,250 (2003) |
| Flat 315 Northampton House, Wellington Street, Northampton | Leasehold | 61 m² | £97,500 (2007) |
| Flat 316 Northampton House, Wellington Street, Northampton | Leasehold | 63 m² | £70,000 (2008) |
| Flat 317 Northampton House, Wellington Street, Northampton | - | 53 m² | - |
| Flat 318, Northampton House, Wellington Street, Northampton | Leasehold | 58 m² | £87,500 (2006) |
| Flat 401 Northampton House, Wellington Street, Northampton | Leasehold | 54 m² | £119,500 (2003) |
| Flat 402, Northampton House, Wellington Street, Northampton | Leasehold | 38 m² | £60,000 (2017) |
| Flat 403 Northampton House, Wellington Street, Northampton | Leasehold | 44 m² | £73,500 (2003) |
| Flat 404, Northampton House, Wellington Street, Northampton | Leasehold | 51 m² | £75,000 (2021) |
| Flat 405 Northampton House, Wellington Street, Northampton | Leasehold | 37 m² | £85,000 (2003) |
| Flat 406 Northampton House, Wellington Street, Northampton | Leasehold | 37 m² | £82,750 (2003) |
| Flat 407 Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £70,000 (2008) |
| Flat 408 Northampton House, Wellington Street, Northampton | - | 58 m² | - |
| Flat 409, Northampton House, Wellington Street, Northampton | Leasehold | 58 m² | £74,000 (2025) |
| Flat 410 Northampton House, Wellington Street, Northampton | - | 48 m² | - |
| Flat 412 Northampton House, Wellington Street, Northampton | Leasehold | 53 m² | £91,000 (2020) |
| Flat 413, Northampton House, Wellington Street, Northampton | Leasehold | 42 m² | £80,500 (2002) |
| Flat 416 Northampton House, Wellington Street, Northampton | Leasehold | 63 m² | £160,000 (2003) |
| Flat 417 Northampton House, Wellington Street, Northampton | - | 50 m² | - |
| Flat 418, Northampton House, Wellington Street, Northampton | Leasehold | 58 m² | £135,000 (2003) |