| 29, BEWDLEY CLOSE HARPENDEN HERTFORDSHIRE AL5 1QX | £740,000 2025-08-12 detached freehold |
| STONEHURST COURT, 91 (FLAT 7), SOUTHDOWN ROAD HARPENDEN HERTFORDSHIRE AL5 1PS | £445,000 2025-08-04 flatmaisonette leasehold |
| 41, GRANBY AVENUE HARPENDEN HERTFORDSHIRE AL5 5QP | £1,041,000 2025-07-31 semidetached freehold |
| 30, LOWER LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 5AQ | £850,000 2025-07-31 semidetached freehold |
| 12, MILLSTONE WAY HARPENDEN HERTFORDSHIRE AL5 5FE | £328,000 2025-07-30 flatmaisonette leasehold |
| 355, LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 3LZ | £775,000 2025-07-29 semidetached freehold |
| BERKELEY COURT, 48 (1), LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 2UN | £351,100 2025-07-25 flatmaisonette leasehold |
| 26, MARQUIS LANE HARPENDEN HERTFORDSHIRE AL5 5AA | £975,000 2025-07-25 semidetached freehold |
| 5, WROXHAM WAY HARPENDEN HERTFORDSHIRE AL5 4PP | £775,000 2025-07-24 semidetached freehold |
| 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 |