| 4, MAPLE ROAD HARPENDEN HERTFORDSHIRE AL5 2DS | £2,300,000 2025-07-23 semidetached freehold |
| BRIDGE COURT (4), HILLSIDE ROAD HARPENDEN HERTFORDSHIRE AL5 4DH | £210,000 2025-07-23 flatmaisonette leasehold |
| 36, MILLSTONE WAY HARPENDEN HERTFORDSHIRE AL5 5FE | £359,000 2025-07-18 flatmaisonette leasehold |
| 16, GEESCROFT WALK HARPENDEN HERTFORDSHIRE AL5 2GX | £525,000 2025-07-18 flatmaisonette leasehold |
| 12, POYNINGS CLOSE HARPENDEN HERTFORDSHIRE AL5 1JD | £1,260,000 2025-07-18 detached freehold |
| HALF COURT, BYRON ROAD HARPENDEN HERTFORDSHIRE AL5 4AB | £2,175,000 2025-07-18 detached freehold |
| 78, PIGGOTTSHILL LANE HARPENDEN HERTFORDSHIRE AL5 1LP | £985,000 2025-07-18 semidetached freehold |
| 9, NOKE SHOT HARPENDEN HERTFORDSHIRE AL5 5HW | £705,000 2025-07-18 semidetached freehold |
| 25, GREATFIELD CLOSE HARPENDEN HERTFORDSHIRE AL5 3HP | £635,000 2025-07-18 terraced freehold |
| HOMEDELL HOUSE (11), ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3RA | £145,000 2025-07-16 flatmaisonette leasehold |
| 305, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3LW | £1,575,000 2025-07-14 detached freehold |
| BERKELEY COURT, 48 (4), LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 2UN | £345,000 2025-07-11 flatmaisonette leasehold |
| 5, AMENBURY LANE HARPENDEN HERTFORDSHIRE AL5 2BT | £461,500 2025-07-11 terraced freehold |
| 6, THE PUTTERILLS HARPENDEN HERTFORDSHIRE AL5 4DZ | £335,000 2025-07-11 flatmaisonette leasehold |
| 9, THE UPLANDS HARPENDEN HERTFORDSHIRE AL5 2PG | £2,500,000 2025-07-09 detached freehold |
| 9, ST MARTINS CLOSE HARPENDEN HERTFORDSHIRE AL5 5JG | £506,500 2025-07-04 terraced freehold |
| 4, BROWNING ROAD HARPENDEN HERTFORDSHIRE AL5 4TR | £2,100,000 2025-07-04 detached freehold |
| 34, LEYTON ROAD HARPENDEN HERTFORDSHIRE AL5 2JB | £609,000 2025-07-02 terraced freehold |
| 5, TARRANT DRIVE HARPENDEN HERTFORDSHIRE AL5 1RP | £655,000 2025-07-02 detached freehold |
| 52, ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3EP | £1,300,000 2025-07-02 detached freehold |