| 134, Eastmoor Park, Harpenden AL5 1BP | Detached | 3 | £940,000 | 2026-02-04 |
| 10, Kings Court, Southdown Road, Harpenden AL5 1NY | Flat | - | £367,500 | 2026-01-30 |
| 106, Southdown Road, Harpenden AL5 1QQ | Terracedd | 3 | £583,500 | 2026-01-28 |
| 8, 47 Cravells Court, Cravells Road, Harpenden AL5 1BB | Flat | 1 | £181,930 | 2026-01-23 |
| 15, Fovant Close, Harpenden AL5 1RN | Detached | - | £580,000 | 2026-01-20 |
| 4, Ravenscroft, Harpenden AL5 1ST | Semi_Detached | 3 | £610,000 | 2026-01-12 |
| 31, 101 Walkers Court, Southdown Road, Harpenden AL5 1QL | Flat | 2 | £265,000 | 2025-12-04 |
| 9, 101 Walkers Court, Southdown Road, Harpenden AL5 1QL | Flat | 1 | £213,000 | 2025-12-04 |
| 59, Sibley Avenue, Harpenden AL5 1HF | Detached | 4 | £1,100,000 | 2025-12-04 |
| 6, Bewdley Close, Harpenden AL5 1QX | Detached | 3 | £665,000 | 2025-12-04 |
| 35, Long Buftlers, Harpenden AL5 1JF | Detached | 4 | £1,265,000 | 2025-11-28 |
| 51, Cranbourne Drive, Harpenden AL5 1RJ | Detached | 4 | £760,000 | 2025-11-26 |
| 4, Acacia Walk, Harpenden AL5 1SH | Detached | - | £800,000 | 2025-11-21 |
| 35a, Piggottshill Lane, Harpenden AL5 1LR | Semi_Detached | - | £770,000 | 2025-09-19 |
| Flat 3, 1 Welcombe House, Gibbs Close, Harpenden AL5 1FA | Semi_Detached | - | £950,000 | 2025-09-18 |