| 8, WOOD END HILL HARPENDEN HERTFORDSHIRE AL5 3EZ | £2,200,000 2025-08-20 detached freehold |
| 4, BARLEY RISE HARPENDEN HERTFORDSHIRE AL5 5JJ | £372,500 2025-08-20 terraced freehold |
| 144, CRAVELLS ROAD HARPENDEN HERTFORDSHIRE AL5 1BQ | £955,000 2025-08-20 terraced freehold |
| 23, STEWART ROAD HARPENDEN HERTFORDSHIRE AL5 4QE | £1,950,000 2025-08-20 detached freehold |
| 25, WEST COMMON HARPENDEN HERTFORDSHIRE AL5 2JN | £512,500 2025-08-19 terraced freehold |
| SHELLEY COURT (8), MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5LL | £400,000 2025-08-19 flatmaisonette leasehold |
| DENE COURT (2), THOMPSONS CLOSE HARPENDEN HERTFORDSHIRE AL5 4ES | £425,000 2025-08-19 flatmaisonette leasehold |
| 1B, CRABTREE LANE HARPENDEN HERTFORDSHIRE AL5 5TA | £1,530,565 2025-08-18 detached freehold |
| 56, PARK AVENUE NORTH HARPENDEN HERTFORDSHIRE AL5 2ED | £4,700,000 2025-08-15 detached freehold |
| 6, THE MEWS HARPENDEN HERTFORDSHIRE AL5 4TF | £585,000 2025-08-14 terraced leasehold |
| HOMEDELL HOUSE (25), ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3RA | £135,000 2025-08-13 flatmaisonette leasehold |
| 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 |