| 36, THE UPLANDS HARPENDEN HERTFORDSHIRE AL5 2NZ | £1,850,000 2025-07-15 detached freehold |
| 31, CARISBROOKE ROAD HARPENDEN HERTFORDSHIRE AL5 5QS | £905,000 2025-07-11 semidetached freehold |
| 12, BLOOMFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 4DB | £1,305,000 2025-07-11 detached freehold |
| 1, WELLS CLOSE HARPENDEN HERTFORDSHIRE AL5 3LQ | £750,000 2025-07-04 terraced freehold |
| 14, ROUNDWOOD PARK HARPENDEN HERTFORDSHIRE AL5 3AB | £1,595,000 2025-07-03 detached freehold |
| 6, WENSLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1RZ | £1,085,000 2025-07-02 detached freehold |
| 11, CROSSPATHS HARPENDEN HERTFORDSHIRE AL5 3HB | £820,000 2025-07-02 detached freehold |
| 37, HILLSIDE ROAD HARPENDEN HERTFORDSHIRE AL5 4BS | £1,495,000 2025-07-01 detached freehold |
| 29, FIELD CLOSE HARPENDEN HERTFORDSHIRE AL5 1EP | £600,000 2025-06-27 detached freehold |
| 22, PROSPECT LANE HARPENDEN HERTFORDSHIRE AL5 2PL | £2,950,000 2025-06-26 detached freehold |
| 5, ENGLEHURST HARPENDEN HERTFORDSHIRE AL5 5SQ | £635,000 2025-11-25 terraced freehold |
| 20, ASHLEY GARDENS HARPENDEN HERTFORDSHIRE AL5 3EY | £800,000 2025-11-19 semidetached freehold |
| 1, LODGE GARDENS HARPENDEN HERTFORDSHIRE AL5 4JE | £750,000 2025-11-14 semidetached freehold |
| 7, PARK HILL HARPENDEN HERTFORDSHIRE AL5 3AT | £682,000 2025-11-14 terraced freehold |
| 19, RIDGE AVENUE HARPENDEN HERTFORDSHIRE AL5 3LT | £985,500 2025-11-12 semidetached freehold |
| 88, AYSGARTH CLOSE HARPENDEN HERTFORDSHIRE AL5 5UG | £245,000 2025-11-11 flatmaisonette leasehold |
| BENNETS LODGE, 21A (FLAT 6), LEYTON ROAD HARPENDEN HERTFORDSHIRE AL5 2HU | £620,000 2025-11-07 flatmaisonette leasehold |
| 31, KINGCROFT ROAD HARPENDEN HERTFORDSHIRE AL5 1EH | £510,000 2025-11-04 terraced freehold |
| 6, BROADSTONE ROAD HARPENDEN HERTFORDSHIRE AL5 1RG | £625,000 2025-11-04 semidetached freehold |
| 2, COLESWOOD ROAD HARPENDEN HERTFORDSHIRE AL5 1EL | £795,000 2025-11-04 semidetached freehold |