| Flat 2 Harmont House, 20, Harley Street, London | Leasehold | 79 m² | £295,000 (2001) |
| Flat 4 Harmont House, 20, Harley Street, London | Leasehold | 178 m² | £1,380,000 (2023) |
| Flat 5, Harmont House, 20 Harley Street, London | Leasehold | 82 m² | £737,500 (2007) |
| Flat 6, Harmont House, 20 Harley Street, London | Leasehold | 79 m² | £318,000 (2004) |
| Flat 7, Harmont House, 20 Harley Street, London | Leasehold | 93 m² | £180,000 (1995) |
| Flat 8 Harmont House, 20, Harley Street, London | Leasehold | 81 m² | £215,000 (2001) |
| Flat 9, Harmont House, 20 Harley Street, London | Leasehold | 81 m² | £1,425,000 (2015) |
| Flat 10, Harmont House, 20 Harley Street, London | Leasehold | 98 m² | £202,500 (2009) |
| Flat 11 Harmont House, 20, Harley Street, London | Leasehold | 82 m² | £1,400,000 (2024) |
| Flat 12 Harmont House, 20, Harley Street, London | Leasehold | 71 m² | £202,500 (2009) |
| Flat 14, Harmont House, 20 Harley Street, London | - | 81 m² | - |
| Flat 14/A Harmont House, 20, Harley Street, London | Leasehold | 156 m² | £500,000 (2019) |
| Flat 15 Harmont House, 20, Harley Street, London | - | 80 m² | - |
| Flat 16 Harmont House, 20, Harley Street, London | Leasehold | 76 m² | £1,100,000 (2022) |
| Flat 17, Harmont House, 20 Harley Street, London | Leasehold | 82 m² | £380,000 (2001) |
| Flat 18 Harmont House, 20, Harley Street, London | Leasehold | 87 m² | £532,500 (2006) |
| Flat 19, Harmont House, 20 Harley Street, London | Leasehold | 93 m² | £499,999 (2006) |
| Flat 20, Harmont House, 20 Harley Street, London | Leasehold | 98 m² | £1,600,000 (2023) |
| Flat 21 Harmont House, 20, Harley Street, London | Leasehold | 83 m² | £1,350,000 (2014) |
| Flat 22 Harmont House, 20, Harley Street, London | Leasehold | 81 m² | £1,330,000 (2019) |
| Flat 23, Harmont House, 20 Harley Street, London | Leasehold | 81 m² | £495,000 (2002) |
