| 5, Waveney Road, Harpenden AL5 4RU | Semi_Detached | 3 | £785,000 | 2025-12-12 |
| 27, Springfield Crescent, Harpenden AL5 4LG | Semi_Detached | 3 | £585,000 | 2025-12-11 |
| 11, Balfour Court, Station Road, Harpenden AL5 4XS | Flat | 2 | £331,500 | 2025-12-10 |
| 1, Byron Road, Harpenden AL5 4AD | Detached | 3 | £1,130,000 | 2025-12-05 |
| 2, Dell Close, Harpenden AL5 4HP | Terracedd | - | £268,750 | 2025-12-04 |
| 26c, Hollybush Lane, Harpenden AL5 4BA | Flat | - | £435,000 | 2025-11-26 |
| 70, Ox Lane, Harpenden AL5 4PW | Detached | 4 | £1,465,000 | 2025-10-10 |
| 17, Masefield Road, Harpenden AL5 4JS | Terracedd | 2 | £475,000 | 2025-09-19 |
| 14, St James Court, Clarendon Road, Harpenden AL5 4UW | Flat | 1 | £245,000 | 2025-09-17 |
| 2, Amberley Close, Harpenden AL5 4TX | Detached | 3 | £860,000 | 2025-09-12 |
| 9, Bryant Court, Hollybush Lane, Harpenden AL5 4BH | Flat | - | £362,000 | 2025-08-28 |
| 22, Willoughby Road, Harpenden AL5 4PF | Terracedd | 2 | £643,000 | 2025-08-27 |
| 21, Arcadian Court, Sun Lane, Harpenden AL5 4EG | Flat | 2 | £615,000 | 2025-08-21 |
| 23, Stewart Road, Harpenden AL5 4QE | Detached | - | £1,950,000 | 2025-08-20 |
| 2, Dene Court, Thompsons Close, Harpenden AL5 4ES | Flat | 1 | £425,000 | 2025-08-19 |