| 65, MILLSTONE WAY HARPENDEN HERTFORDSHIRE AL5 5FE | £137,500 2023-09-21 flatmaisonette leasehold |
| LEA SPRINGS, 14 (11), LOWER LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 5FA | £265,000 2023-09-21 flatmaisonette leasehold |
| 21, THE DEERINGS HARPENDEN HERTFORDSHIRE AL5 2PF | £2,400,000 2023-09-18 detached freehold |
| 17, THE CHOWNS HARPENDEN HERTFORDSHIRE AL5 2BN | £2,740,000 2023-09-18 detached freehold |
| 16, THE DEERINGS HARPENDEN HERTFORDSHIRE AL5 2PE | £1,500,000 2023-09-15 detached freehold |
| 10, THE WARREN HARPENDEN HERTFORDSHIRE AL5 2NH | £2,335,000 2023-09-15 detached freehold |
| 17, ST JAMES COURT HARPENDEN HERTFORDSHIRE AL5 4UW | £187,000 2023-09-15 flatmaisonette leasehold |
| 11, CROSS WAY HARPENDEN HERTFORDSHIRE AL5 4RA | £865,000 2023-09-15 terraced freehold |
| 12, PENDENNIS COURT HARPENDEN HERTFORDSHIRE AL5 1SG | £545,000 2023-09-14 semidetached freehold |
| ALDWICKBURY FARM (ROSE COTTAGE), PIGGOTTSHILL LANE HARPENDEN HERTFORDSHIRE AL5 1AB | £695,000 2023-09-11 terraced freehold |
| 7, AYSGARTH CLOSE HARPENDEN HERTFORDSHIRE AL5 5UG | £330,000 2023-09-08 flatmaisonette leasehold |
| 30, LONGFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 1QE | £455,000 2023-09-08 terraced freehold |
| 6, WELLS CLOSE HARPENDEN HERTFORDSHIRE AL5 3LQ | £600,000 2023-09-08 terraced freehold |
| HOMEDELL HOUSE (15), ROUNDWOOD LANE HARPENDEN HERTFORDSHIRE AL5 3RA | £145,000 2023-09-07 flatmaisonette leasehold |
| 131, ALDWICKBURY CRESCENT HARPENDEN HERTFORDSHIRE AL5 5SS | £975,000 2023-09-07 detached freehold |
| 8, FARM CLOSE HARPENDEN HERTFORDSHIRE AL5 3NH | £570,000 2023-09-01 terraced freehold |
| 72, PIGGOTTSHILL LANE HARPENDEN HERTFORDSHIRE AL5 1LP | £1,133,000 2023-09-01 semidetached freehold |
| 3, SHAKESPEARE ROAD HARPENDEN HERTFORDSHIRE AL5 5NE | £1,250,000 2023-08-31 semidetached freehold |
| 8, ARAN CLOSE HARPENDEN HERTFORDSHIRE AL5 1SW | £1,050,000 2023-08-31 detached freehold |
| 24, GREENWAY HARPENDEN HERTFORDSHIRE AL5 1NQ | £767,500 2023-08-31 detached freehold |