| Flat 15, Stephens Court, Station Road, Harpenden AL5 4FE | Flat | 2 | £340,000 | 2026-03-09 |
| Flat 24, Stephens Court, Station Road, Harpenden AL5 4FE | Flat | - | £300,000 | 2026-03-06 |
| 10, Grant Gardens, Harpenden AL5 4QD | Detached | 4 | £1,530,000 | 2026-02-25 |
| 15, Hyde View Road, Harpenden AL5 4PA | Semi_Detached | 4 | £655,000 | 2026-02-19 |
| 20, Lea Walk, Harpenden AL5 4NG | Terracedd | 2 | £233,000 | 2026-02-16 |
| 13, Robin Court, Westfield Road, Harpenden AL5 4UH | Flat | 1 | £235,000 | 2026-02-13 |
| 1, Westfield Close, Harpenden AL5 4FW | Terracedd | - | £590,000 | 2026-02-06 |
| 40, Crossway, Harpenden AL5 4QU | Semi_Detached | 4 | £940,000 | 2026-01-23 |
| 80, Westfield Road, Harpenden AL5 4JU | Semi_Detached | - | £540,000 | 2026-01-22 |
| 11, Lodge Gardens, Harpenden AL5 4JE | Semi_Detached | 3 | £1,160,000 | 2026-01-08 |
| 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 |