| 3 Harkness Road, Hemel Hempstead | Leasehold | 70 m² | £270,000 (2022) |
| 7, Harkness Road, Hemel Hempstead | Leasehold | 60 m² | £202,000 (2025) |
| 10, Harkness Road, Hemel Hempstead | Leasehold | 68 m² | £255,000 (2023) |
| 11, Harkness Road, Hemel Hempstead | Leasehold | 68 m² | £103,500 (2016) |
| 12, Harkness Road, Hemel Hempstead | Leasehold | 67 m² | £130,500 (2019) |
| 14 Harkness Road, Hemel Hempstead | - | 91 m² | - |
| 15 Harkness Road, Hemel Hempstead | - | 98 m² | - |
| 18, Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £276,500 (2023) |
| 22 Harkness Road, Hemel Hempstead | Leasehold | 50 m² | £107,500 (2025) |
| 23, Harkness Road, Hemel Hempstead | Leasehold | 68 m² | £130,500 (2019) |
| 26, Harkness Road, Hemel Hempstead | Leasehold | 49 m² | £101,250 (2023) |
| 29 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £79,200 (2007) |
| Flat 1 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £135,000 (2018) |
| Flat 2 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £78,750 (2007) |
| Flat 4 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £78,750 (2007) |
| Flat 5 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £258,000 (2025) |
| Flat 6 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £67,500 (2014) |
| Flat 8 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £128,250 (2018) |
| Flat 9 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £255,000 (2016) |
| Flat 16 Harkness Road, Hemel Hempstead | - | 69 m² | - |
| Flat 17 Harkness Road, Hemel Hempstead | - | 69 m² | - |
| Flat 19 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £237,000 (2017) |
| Flat 20 Harkness Road, Hemel Hempstead | - | 69 m² | - |
| Flat 21 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £121,500 (2026) |
| Flat 24 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £160,000 (2015) |
| Flat 25 Harkness Road, Hemel Hempstead | - | 69 m² | - |
| Flat 27 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £135,000 (2024) |
| Flat 28 Harkness Road, Hemel Hempstead | - | 69 m² | - |
| Flat 30 Harkness Road, Hemel Hempstead | Leasehold | 69 m² | £67,500 (2007) |