| 13, FAIRFIELD CLOSE HARPENDEN HERTFORDSHIRE AL5 5RZ | £525,000 2025-09-19 terraced freehold |
| KENNESBOURNE COURT (1), TUFFNELLS WAY HARPENDEN HERTFORDSHIRE AL5 3HT | £385,000 2025-09-19 flatmaisonette leasehold |
| 94, GROVE ROAD HARPENDEN HERTFORDSHIRE AL5 1HG | £1,105,000 2025-09-18 semidetached freehold |
| 11, MORETON END LANE HARPENDEN HERTFORDSHIRE AL5 2EY | £2,990,000 2025-09-17 detached freehold |
| 6, WHEATFIELD AVENUE HARPENDEN HERTFORDSHIRE AL5 2NU | £1,750,000 2025-09-17 detached freehold |
| 1, ALLIED BUSINESS CENTRE HARPENDEN HERTFORDSHIRE AL5 4UT | £611,000 2025-09-12 otherPropertyType leasehold |
| COOTERS HILL BARNS (5), COOTERS END LANE HARPENDEN HERTFORDSHIRE AL5 3NR | £1,950,000 2025-09-12 terraced freehold |
| 14, BLOOMFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 4DB | £1,860,000 2025-09-10 detached freehold |
| 10, LINDEN COURT HARPENDEN HERTFORDSHIRE AL5 5LR | £534,000 2025-09-08 terraced freehold |
| 1, JAMESON ROAD HARPENDEN HERTFORDSHIRE AL5 4HG | £1,685,000 2025-09-05 detached freehold |
| 52, CHESTERTON AVENUE HARPENDEN HERTFORDSHIRE AL5 5SU | £790,000 2025-09-05 detached freehold |
| 4, TOWNSEND LANE HARPENDEN HERTFORDSHIRE AL5 2QE | £1,610,000 2025-09-03 semidetached freehold |
| 54, GROVE AVENUE HARPENDEN HERTFORDSHIRE AL5 1HA | £820,000 2025-09-02 semidetached freehold |
| 2, WALKERS CLOSE HARPENDEN HERTFORDSHIRE AL5 1QJ | £740,000 2025-08-29 detached freehold |
| HOMEDELL HOUSE (10), ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3RA | £155,000 2025-08-29 flatmaisonette leasehold |
| 57, OVERSTONE ROAD HARPENDEN HERTFORDSHIRE AL5 5PN | £1,175,000 2025-08-29 semidetached freehold |
| 19, THE UPLANDS HARPENDEN HERTFORDSHIRE AL5 2PG | £2,350,000 2025-08-28 detached freehold |
| 5, WALNUT CLOSE HARPENDEN HERTFORDSHIRE AL5 4FP | £1,750,000 2025-08-22 detached freehold |
| 16, GROVE AVENUE HARPENDEN HERTFORDSHIRE AL5 1EX | £1,095,000 2025-08-22 semidetached freehold |
| 12, MAPLE ROAD HARPENDEN HERTFORDSHIRE AL5 2DU | £1,720,000 2025-08-21 semidetached freehold |