| 18, SPENSER ROAD HARPENDEN HERTFORDSHIRE AL5 5NN | £1,550,000 2025-02-14 detached freehold |
| 12, BEWDLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1QX | £630,000 2025-02-12 detached freehold |
| STATION HOUSE, 2 - 6 (23), STATION APPROACH HARPENDEN HERTFORDSHIRE AL5 4SS | £317,000 2025-02-07 flatmaisonette (New) leasehold |
| 2, CORNWALL ROAD HARPENDEN HERTFORDSHIRE AL5 4TH | £1,375,000 2025-02-05 semidetached freehold |
| 16, ARDEN GROVE HARPENDEN HERTFORDSHIRE AL5 4SJ | £1,460,000 2025-02-04 detached freehold |
| 1, THE DEERINGS HARPENDEN HERTFORDSHIRE AL5 2PF | £1,325,000 2025-01-31 detached freehold |
| 33, SOUTHDOWN ROAD HARPENDEN HERTFORDSHIRE AL5 1PF | £1,825,000 2025-01-31 detached freehold |
| 90, STATION ROAD HARPENDEN HERTFORDSHIRE AL5 4TY | £1,200,000 2025-01-31 semidetached freehold |
| 2, THE PLEASANCE HARPENDEN HERTFORDSHIRE AL5 3NA | £835,500 2025-01-30 semidetached freehold |
| GERARD COURT (FLAT 11), HITHERFIELD LANE HARPENDEN HERTFORDSHIRE AL5 4JA | £750,000 2025-01-29 flatmaisonette leasehold |
| 4, ST JAMES ROAD HARPENDEN HERTFORDSHIRE AL5 4NY | £1,150,000 2024-12-17 detached freehold |
| 65, GROVE ROAD HARPENDEN HERTFORDSHIRE AL5 1EN | £596,750 2024-12-13 terraced freehold |
| 8, ST MICHAELS CLOSE HARPENDEN HERTFORDSHIRE AL5 1EW | £595,000 2024-12-12 terraced freehold |
| 17, GRANBY AVENUE HARPENDEN HERTFORDSHIRE AL5 5QP | £1,090,000 2024-12-06 detached freehold |
| THE RED HOUSE, SPRING ROAD HARPENDEN HERTFORDSHIRE AL5 3PP | £1,246,000 2024-12-04 detached freehold |
| 12A, BLOOMFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 4DB | £1,300,000 2024-11-29 semidetached (New) freehold |
| 71, TUFFNELLS WAY HARPENDEN HERTFORDSHIRE AL5 3HS | £687,400 2024-11-27 semidetached freehold |
| 3, PENDENNIS COURT HARPENDEN HERTFORDSHIRE AL5 1SG | £665,000 2025-06-24 semidetached freehold |
| 40, BEWDLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1QX | £700,000 2025-06-20 detached freehold |
| 117, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3BB | £460,000 2025-06-20 terraced freehold |