| 8, COSNE MEWS HARPENDEN HERTFORDSHIRE AL5 1DP | £215,000 2023-11-01 flatmaisonette leasehold |
| 20, KIPLING WAY HARPENDEN HERTFORDSHIRE AL5 4XG | £660,000 2023-10-30 terraced freehold |
| BEACON HOUSE, ANNABLES LANE HARPENDEN HERTFORDSHIRE AL5 3PL | £3,100,000 2023-10-27 detached freehold |
| 100, CRABTREE LANE HARPENDEN HERTFORDSHIRE AL5 5RF | £750,000 2023-10-27 terraced freehold |
| 25, CRABTREE LANE HARPENDEN HERTFORDSHIRE AL5 5NT | £1,185,000 2023-10-27 detached freehold |
| STONEHURST COURT, 91 (FLAT 9), SOUTHDOWN ROAD HARPENDEN HERTFORDSHIRE AL5 1PS | £500,000 2023-10-27 flatmaisonette leasehold |
| 23, HIGHFIELD AVENUE HARPENDEN HERTFORDSHIRE AL5 5UB | £950,000 2023-10-26 semidetached freehold |
| 8, GROVE AVENUE HARPENDEN HERTFORDSHIRE AL5 1EX | £840,000 2023-10-26 semidetached freehold |
| 36, SIBLEY AVENUE HARPENDEN HERTFORDSHIRE AL5 1HF | £1,205,000 2023-10-26 detached freehold |
| 25, TOWNSEND ROAD HARPENDEN HERTFORDSHIRE AL5 4BG | £1,215,000 2023-10-26 semidetached freehold |
| 6, BATFORD ROAD HARPENDEN HERTFORDSHIRE AL5 5AX | £665,000 2023-10-26 terraced freehold |
| 44, ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3BU | £1,585,000 2023-10-25 detached freehold |
| 2, ASHCROFT CLOSE HARPENDEN HERTFORDSHIRE AL5 1JJ | £1,190,000 2023-10-20 detached freehold |
| 9, VALLANCE PLACE HARPENDEN HERTFORDSHIRE AL5 1AX | £475,000 2023-10-20 terraced freehold |
| 19, WILLOUGHBY ROAD HARPENDEN HERTFORDSHIRE AL5 4PE | £258,000 2023-10-20 flatmaisonette leasehold |
| 13, ELLISWICK ROAD HARPENDEN HERTFORDSHIRE AL5 4TP | £2,250,000 2023-10-20 detached freehold |
| 116, GROVE ROAD HARPENDEN HERTFORDSHIRE AL5 1HQ | £255,000 2023-10-20 flatmaisonette leasehold |
| 147, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3BN | £515,000 2023-10-20 terraced freehold |
| 3, TENNYSON ROAD HARPENDEN HERTFORDSHIRE AL5 4BE | £1,202,500 2023-10-20 semidetached freehold |
| 136, GROVE ROAD HARPENDEN HERTFORDSHIRE AL5 1HQ | £259,950 2023-10-20 flatmaisonette leasehold |