| 1 Robert House, Sovereign Place, Harrow, Harrow | Leasehold | 53 m² | £169,950 (2001) |
| 3 Robert House, Sovereign Place, Harrow, Harrow | Leasehold | 37 m² | £165,000 (2004) |
| 14 Robert House, Sovereign Place, Harrow, Harrow | Leasehold | 58 m² | £160,000 (2002) |
| 18 Robert House, Sovereign Place, Harrow, Harrow | Leasehold | 49 m² | £185,500 (2013) |
| Flat 2, Robert House, Sovereign Place, Harrow | Leasehold | 40 m² | £119,950 (2001) |
| Flat 4, Robert House, Sovereign Place, Harrow | Leasehold | 50 m² | £190,300 (2004) |
| Flat 5 Robert House, Sovereign Place, Harrow | Leasehold | 45 m² | £119,000 (2001) |
| Flat 6, Robert House, Sovereign Place, Harrow | Leasehold | 51 m² | £157,895 (2001) |
| Flat 7, Robert House, Sovereign Place, Harrow | Leasehold | 48 m² | £145,000 (2001) |
| Flat 8 Robert House, Sovereign Place, Harrow | Leasehold | 60 m² | £195,000 (2002) |
| Flat 9, Robert House, Sovereign Place, Harrow | Leasehold | 57 m² | £205,000 (2009) |
| Flat 10, Robert House, Sovereign Place, Harrow | Leasehold | 47 m² | £265,000 (2017) |
| Flat 11 Robert House, Sovereign Place, Harrow | Leasehold | 40 m² | £189,950 (2014) |
| Flat 12 Robert House, Sovereign Place, Harrow | Leasehold | 56 m² | £210,000 (2015) |
| Flat 13, Robert House, Sovereign Place, Harrow | Leasehold | 41 m² | £125,950 (2001) |
| Flat 15 Robert House, Sovereign Place, Harrow | Leasehold | 35 m² | £275,000 (2022) |
| Flat 16, Robert House, Sovereign Place, Harrow | Leasehold | 57 m² | £275,000 (2019) |
| Flat 17, Robert House, Harrow | Leasehold | 50 m² | £269,000 (2018) |
| Flat 19 Robert House, Sovereign Place, Harrow | Leasehold | 50 m² | £142,500 (2001) |
