| 4, BEECHING CLOSE HARPENDEN HERTFORDSHIRE AL5 4LZ | £250,000 2024-01-29 flatmaisonette leasehold |
| 4, LODGE GARDENS HARPENDEN HERTFORDSHIRE AL5 4JE | £850,000 2024-01-26 terraced freehold |
| 1, ALDWICK ROAD HARPENDEN HERTFORDSHIRE AL5 1NG | £1,350,000 2024-01-26 detached freehold |
| 15, PIGGOTTSHILL LANE HARPENDEN HERTFORDSHIRE AL5 1LG | £1,000,050 2024-01-26 terraced freehold |
| 11B, DOUGLAS ROAD HARPENDEN HERTFORDSHIRE AL5 2EN | £1,500,000 2024-01-26 detached freehold |
| THE BOURNE (COTTAGE 1), SALISBURY AVENUE HARPENDEN HERTFORDSHIRE AL5 2PS | £1,375,000 2024-01-22 detached freehold |
| 2, THE UPLANDS HARPENDEN HERTFORDSHIRE AL5 2PH | £2,650,000 2024-01-19 detached freehold |
| 18, HIGH FIRS CRESCENT HARPENDEN HERTFORDSHIRE AL5 1NA | £810,000 2024-01-19 semidetached freehold |
| BOND COURT (36), HILLSIDE ROAD HARPENDEN HERTFORDSHIRE AL5 4DJ | £207,500 2024-01-19 flatmaisonette leasehold |
| 62, TALLENTS CRESCENT HARPENDEN HERTFORDSHIRE AL5 5BS | £330,000 2024-01-19 flatmaisonette leasehold |
| 7, JAMESON ROAD HARPENDEN HERTFORDSHIRE AL5 4HG | £1,400,000 2024-01-18 semidetached freehold |
| 18, TINTERN CLOSE HARPENDEN HERTFORDSHIRE AL5 3NZ | £690,000 2024-01-15 detached freehold |
| 8, ROUNDWOOD GARDENS HARPENDEN HERTFORDSHIRE AL5 3AJ | £1,380,000 2024-01-12 detached freehold |
| 15, SPENSER ROAD HARPENDEN HERTFORDSHIRE AL5 5NW | £1,350,000 2024-01-11 semidetached freehold |
| 22, WEST COMMON WAY HARPENDEN HERTFORDSHIRE AL5 2LG | £2,700,000 2024-01-09 detached freehold |
| BORODALE (7), KIRKWICK AVENUE HARPENDEN HERTFORDSHIRE AL5 2QW | £1,125,000 2024-01-08 flatmaisonette leasehold |
| 7, WESTMINSTER COURT HARPENDEN HERTFORDSHIRE AL5 1TH | £347,000 2024-01-08 flatmaisonette leasehold |
| GIBRALTAR LODGE (10), BATFORD ROAD HARPENDEN HERTFORDSHIRE AL5 5AS | £487,500 2024-01-08 terraced freehold |
| 30, SHEPHERDS WAY HARPENDEN HERTFORDSHIRE AL5 3HF | £625,000 2024-01-05 terraced freehold |
| 4, MORETON END CLOSE HARPENDEN HERTFORDSHIRE AL5 2EZ | £923,000 2024-01-05 detached freehold |