| 1 Balfour House, 50 Guildford Street, Luton | Leasehold | 81 m² | £89,500 (2009) |
| 2 Balfour House, 50, Guildford Street, Luton | Leasehold | 79 m² | £170,000 (2022) |
| 4 Balfour House, 50 Guildford Street, Luton | Leasehold | 60 m² | £115,000 (2017) |
| 5 Balfour House, 50 Guildford Street, Luton | Leasehold | 48 m² | £104,950 (2006) |
| 6 Balfour House, 50 Guildford Street, Luton | Leasehold | 55 m² | £93,000 (2003) |
| 7 Balfour House, 50 Guildford Street, Luton, Luton | Leasehold | 36 m² | £105,000 (2006) |
| 10 Balfour House, 50 Guildford Street, Luton | Leasehold | 41 m² | £108,000 (2015) |
| 11 Balfour House, 50, Guildford Street, Luton | Leasehold | 45 m² | £94,995 (2003) |
| 12 Balfour House, 50, Guildford Street, Luton | Leasehold | 276 m² | £235,000 (2015) |
| 52 Guildford Street, Luton | Leasehold | 68 m² | £49,000 (2001) |
| 52A Guildford Street, Luton, Luton | Leasehold | 54 m² | £106,000 (2020) |
| 54 Guildford Street, Luton | Leasehold | 53 m² | £94,000 (2014) |
| 54A, Guildford Street, Luton | Leasehold | 50 m² | £69,995 (2003) |
| 56 Guildford Street, Luton | Freehold | 50 m² | £41,000 (2000) |
| 56A Guildford Street, Luton | - | 54 m² | - |
| 56B Guildford Street, Luton, Luton | - | 54 m² | - |
| 58 Guildford Street, Luton | Leasehold | 54 m² | £139,000 (2006) |
| 58A, Guildford Street, Luton | Leasehold | 36 m² | £87,500 (2005) |
| 60 Guildford Street, Luton | Leasehold | 48 m² | £115,000 (2019) |
| 60A, Guildford Street, Luton | Leasehold | 63 m² | £76,000 (2003) |
| Flat 3, Balfour House, Guildford Street, Luton | Leasehold | 50 m² | £95,500 (2003) |