| 13, HASLINGDEN CLOSE HARPENDEN HERTFORDSHIRE AL5 3EW | £950,000 2025-08-21 detached freehold |
| 9, MOLESCROFT HARPENDEN HERTFORDSHIRE AL5 3LS | £945,000 2025-08-21 detached freehold |
| 1A, COWPER ROAD HARPENDEN HERTFORDSHIRE AL5 5NF | £1,575,000 2025-08-21 semidetached freehold |
| 5, HIGH FIRS CRESCENT HARPENDEN HERTFORDSHIRE AL5 1NB | £1,075,000 2025-08-19 detached freehold |
| SHELLEY COURT (8), MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5LL | £410,000 2025-08-19 flatmaisonette leasehold |
| 11, WOOD END HILL HARPENDEN HERTFORDSHIRE AL5 3EZ | £1,538,250 2025-08-18 detached freehold |
| BORODALE (5), KIRKWICK AVENUE HARPENDEN HERTFORDSHIRE AL5 2QW | £1,000,000 2025-08-15 flatmaisonette leasehold |
| 31, CRANBOURNE DRIVE HARPENDEN HERTFORDSHIRE AL5 1RJ | £680,000 2025-08-15 terraced freehold |
| 17, AYSGARTH CLOSE HARPENDEN HERTFORDSHIRE AL5 5UG | £236,000 2025-08-14 flatmaisonette leasehold |
| 6, LEYTON GREEN HARPENDEN HERTFORDSHIRE AL5 2TG | £1,555,000 2025-08-11 detached freehold |
| 16, BOWERS WAY HARPENDEN HERTFORDSHIRE AL5 4EW | £2,242,800 2025-08-11 detached freehold |
| 13, OAKHURST AVENUE HARPENDEN HERTFORDSHIRE AL5 2NB | £3,500,000 2025-08-05 detached freehold |
| ST. HELENA'S COURT, 40 (FLAT 6), LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 2UH | £650,000 2025-08-04 flatmaisonette leasehold |
| 26, BURYWICK HARPENDEN HERTFORDSHIRE AL5 2AH | £1,805,000 2025-08-04 detached freehold |
| 17, ASHWELL PARK HARPENDEN HERTFORDSHIRE AL5 5SG | £385,000 2025-07-31 terraced freehold |
| ALBANY COURT (14), MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5LU | £325,000 2025-07-31 flatmaisonette leasehold |
| 7, BAULK CLOSE HARPENDEN HERTFORDSHIRE AL5 4FJ | £705,000 2025-07-25 semidetached freehold |
| 22, RIVERFORD CLOSE HARPENDEN HERTFORDSHIRE AL5 4LY | £350,000 2025-07-21 flatmaisonette leasehold |
| 33, COWPER ROAD HARPENDEN HERTFORDSHIRE AL5 5NF | £1,150,000 2025-07-21 semidetached freehold |
| 16, HITHERFIELD LANE HARPENDEN HERTFORDSHIRE AL5 4JD | £1,375,000 2025-07-15 terraced freehold |