| 1, BYRON ROAD HARPENDEN HERTFORDSHIRE AL5 4AD | £1,130,000 2025-12-05 detached freehold |
| 23A (FLAT 23), LEYTON ROAD HARPENDEN HERTFORDSHIRE AL5 2FH | £417,000 2025-12-05 flatmaisonette leasehold |
| 3, PARK MOUNT HARPENDEN HERTFORDSHIRE AL5 3AS | £717,230 2025-12-05 terraced freehold |
| 40, GRANBY AVENUE HARPENDEN HERTFORDSHIRE AL5 5QR | £1,875,000 2025-12-05 detached freehold |
| 6, BEWDLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1QX | £665,000 2025-12-04 detached freehold |
| WALKERS COURT, 101 (31), SOUTHDOWN ROAD HARPENDEN HERTFORDSHIRE AL5 1QL | £265,000 2025-12-04 flatmaisonette leasehold |
| WALKERS COURT, 101 (9), SOUTHDOWN ROAD HARPENDEN HERTFORDSHIRE AL5 1QL | £213,000 2025-12-04 flatmaisonette leasehold |
| 59, SIBLEY AVENUE HARPENDEN HERTFORDSHIRE AL5 1HF | £1,100,000 2025-12-04 detached freehold |
| 2, DELL CLOSE HARPENDEN HERTFORDSHIRE AL5 4HP | £268,750 2025-12-04 terraced freehold |
| 26, CHURCH GREEN ROW HARPENDEN HERTFORDSHIRE AL5 2TW | £465,000 2025-12-01 flatmaisonette leasehold |
| 24C, HOLLYBUSH LANE HARPENDEN HERTFORDSHIRE AL5 4AT | £525,000 2025-11-28 flatmaisonette leasehold |
| 48, MEADWAY HARPENDEN HERTFORDSHIRE AL5 1JL | £875,000 2025-11-28 semidetached freehold |
| 341, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3LZ | £752,370 2025-11-28 semidetached freehold |
| 35, LONG BUFTLERS HARPENDEN HERTFORDSHIRE AL5 1JF | £1,265,000 2025-11-28 detached freehold |
| 51, CRANBOURNE DRIVE HARPENDEN HERTFORDSHIRE AL5 1RJ | £760,000 2025-11-26 detached freehold |
| 26, HOLLYBUSH LANE HARPENDEN HERTFORDSHIRE AL5 4BA | £435,000 2025-11-26 flatmaisonette leasehold |
| 2, WENSLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1RZ | £850,000 2025-11-25 detached freehold |
| 15, MOLESCROFT HARPENDEN HERTFORDSHIRE AL5 3LS | £960,000 2025-11-25 semidetached freehold |
| 19, GEESCROFT WALK HARPENDEN HERTFORDSHIRE AL5 2GX | £520,000 2025-11-25 flatmaisonette leasehold |
| HOLLY LODGE, 10, PARK AVENUE SOUTH HARPENDEN HERTFORDSHIRE AL5 2EA | £4,000,000 2025-11-24 detached freehold |