| 1, DEVONSHIRE ROAD HARPENDEN HERTFORDSHIRE AL5 4TJ | £1,350,000 2025-10-29 semidetached freehold |
| 3, NETHERFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 2AF | £2,325,000 2025-10-29 detached freehold |
| 1, TALLENTS CRESCENT HARPENDEN HERTFORDSHIRE AL5 5BP | £600,000 2025-10-27 semidetached freehold |
| 18, MILLSTONE WAY HARPENDEN HERTFORDSHIRE AL5 5FE | £330,000 2025-10-27 flatmaisonette leasehold |
| 27, CARISBROOKE ROAD HARPENDEN HERTFORDSHIRE AL5 5QS | £1,085,000 2025-10-23 semidetached freehold |
| 9, PARVA CLOSE HARPENDEN HERTFORDSHIRE AL5 1RQ | £795,000 2025-10-22 detached freehold |
| 41, THE DEERINGS HARPENDEN HERTFORDSHIRE AL5 2PF | £2,175,000 2025-10-17 detached freehold |
| 25, ALDWICKBURY CRESCENT HARPENDEN HERTFORDSHIRE AL5 5SA | £1,020,000 2025-10-17 detached freehold |
| 245, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3DE | £1,060,000 2025-10-13 semidetached freehold |
| 84, PARK RISE HARPENDEN HERTFORDSHIRE AL5 3AL | £900,000 2025-10-09 detached freehold |
| THE COACH HOUSE, HATCHING GREEN CLOSE HARPENDEN HERTFORDSHIRE AL5 2LB | £1,885,000 2025-10-09 detached freehold |
| 101, STATION ROAD HARPENDEN HERTFORDSHIRE AL5 4UJ | £1,050,000 2025-10-08 detached freehold |
| 1, THE CLOSE HARPENDEN HERTFORDSHIRE AL5 3NB | £1,095,000 2025-10-06 semidetached freehold |
| 22, LEA ROAD HARPENDEN HERTFORDSHIRE AL5 4PG | £1,390,000 2025-10-03 semidetached freehold |
| STAKERS COURT (16), MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5PA | £345,000 2025-10-02 flatmaisonette leasehold |
| BOWERS HOUSE (4), HIGH STREET HARPENDEN HERTFORDSHIRE AL5 2SG | £400,000 2025-09-30 flatmaisonette leasehold |
| 27, DALKEITH ROAD HARPENDEN HERTFORDSHIRE AL5 5PP | £1,752,500 2025-09-25 detached freehold |
| 73, PARK RISE HARPENDEN HERTFORDSHIRE AL5 3AN | £1,055,000 2025-09-25 semidetached freehold |
| 7, GRASMERE AVENUE HARPENDEN HERTFORDSHIRE AL5 5PT | £1,700,000 2025-09-22 detached freehold |
| 7, THE CHOWNS HARPENDEN HERTFORDSHIRE AL5 2BN | £1,850,000 2025-09-22 detached freehold |