| 46, MEADOW WALK HARPENDEN HERTFORDSHIRE AL5 5TG | £830,000 2024-11-11 semidetached freehold |
| 24, BROADSTONE ROAD HARPENDEN HERTFORDSHIRE AL5 1RG | £535,000 2024-11-06 terraced freehold |
| 11, ROUNDWOOD GARDENS HARPENDEN HERTFORDSHIRE AL5 3AJ | £1,225,000 2024-10-24 detached freehold |
| 24, OVERSTONE ROAD HARPENDEN HERTFORDSHIRE AL5 5PJ | £1,140,000 2024-10-04 semidetached freehold |
| ARLINGTON HOUSE, OAKHURST AVENUE HARPENDEN HERTFORDSHIRE AL5 2ND | £2,470,000 2024-10-03 detached freehold |
| 19, HAWSLEY ROAD HARPENDEN HERTFORDSHIRE AL5 2BL | £1,600,000 2024-09-25 detached freehold |
| 5, THE CHOWNS HARPENDEN HERTFORDSHIRE AL5 2BN | £2,200,000 2024-09-24 detached freehold |
| 19, CLAYGATE AVENUE HARPENDEN HERTFORDSHIRE AL5 2HE | £1,470,000 2024-09-23 detached freehold |
| 26A, ROUNDWOOD PARK HARPENDEN HERTFORDSHIRE AL5 3AF | £2,400,000 2024-09-10 detached freehold |
| 22, THE UPLANDS HARPENDEN HERTFORDSHIRE AL5 2PQ | £3,500,000 2024-09-10 detached freehold |
| 9B, MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5LA | £662,500 2024-09-10 flatmaisonette leasehold |
| 20A, OAKFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 2NL | £2,225,000 2024-09-10 detached freehold |
| 25, CHURCHFIELD HARPENDEN HERTFORDSHIRE AL5 1LJ | £700,000 2024-09-09 semidetached freehold |
| 2, APPLEWOOD CLOSE HARPENDEN HERTFORDSHIRE AL5 3BT | £1,025,000 2024-09-06 detached freehold |
| 53, MILTON ROAD HARPENDEN HERTFORDSHIRE AL5 5LX | £2,200,000 2024-08-29 detached freehold |
| GLENEAGLE MANOR (5), TOWNSEND LANE HARPENDEN HERTFORDSHIRE AL5 2FE | £1,600,000 2024-08-29 flatmaisonette leasehold |
| KENNELS FARM HOUSE, KINSBOURNE GREEN LANE HARPENDEN HERTFORDSHIRE AL5 3PF | £1,900,000 2024-08-27 detached freehold |
| 49, AMBROSE LANE HARPENDEN HERTFORDSHIRE AL5 4BU | £1,301,000 2024-08-27 semidetached freehold |
| 26, TENNYSON ROAD HARPENDEN HERTFORDSHIRE AL5 4BB | £1,225,000 2024-08-23 semidetached freehold |
| 37, HARPENDEN RISE HARPENDEN HERTFORDSHIRE AL5 3BG | £650,000 2024-08-16 semidetached freehold |