| 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 |
| 6, The Mews, Breadcroft Lane, Harpenden AL5 4TF | Terracedd | - | £585,000 | 2025-08-14 |
| 5, Wroxham Way, Harpenden AL5 4PP | Semi_Detached | 3 | £775,000 | 2025-07-24 |
| Beechside, Byron Road, Harpenden AL5 4AB | Detached | - | £2,175,000 | 2025-07-18 |
| 6, The Putterills, Harpenden AL5 4DZ | Flat | 2 | £335,000 | 2025-07-11 |
| 4, Browning Road, Harpenden AL5 4TR | Detached | 5 | £2,100,000 | 2025-07-04 |
| 26, Riverford Close, Harpenden AL5 4LY | Flat | 2 | £320,000 | 2025-06-23 |