| 19, DERWENT ROAD HARPENDEN HERTFORDSHIRE AL5 3PA | £850,000 2024-02-16 detached freehold |
| 22, BARNS DENE HARPENDEN HERTFORDSHIRE AL5 2HQ | £1,810,001 2024-02-15 detached freehold |
| ST. HELENA'S COURT, 40 (FLAT 9), LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 2UH | £725,000 2024-02-14 flatmaisonette leasehold |
| 69, DERWENT ROAD HARPENDEN HERTFORDSHIRE AL5 3NY | £1,000,500 2024-02-09 detached freehold |
| 33, STATION ROAD HARPENDEN HERTFORDSHIRE AL5 4XD | £1,340,000 2024-02-08 detached freehold |
| FURZEDOWN COURT (14), MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5PD | £620,000 2024-02-06 terraced freehold |
| 20, SIR JOSEPHS WALK HARPENDEN HERTFORDSHIRE AL5 2DT | £840,000 2024-02-02 terraced freehold |
| 8, ALDWICKBURY CRESCENT HARPENDEN HERTFORDSHIRE AL5 5RP | £830,000 2024-02-02 detached freehold |
| STEPHENS COURT (FLAT 30), STATION ROAD HARPENDEN HERTFORDSHIRE AL5 4FE | £335,000 2024-01-29 flatmaisonette leasehold |
| 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 |