| 5, TOWNSEND LANE HARPENDEN HERTFORDSHIRE AL5 2PY | £1,175,000 2025-09-22 semidetached freehold |
| 17, MASEFIELD ROAD HARPENDEN HERTFORDSHIRE AL5 4JS | £475,000 2025-09-19 terraced freehold |
| 9, POETS COURT HARPENDEN HERTFORDSHIRE AL5 5EW | £219,000 2025-09-19 flatmaisonette leasehold |
| 35, PIGGOTTSHILL LANE HARPENDEN HERTFORDSHIRE AL5 1LR | £770,000 2025-09-19 semidetached freehold |
| 3, GIBBS CLOSE HARPENDEN HERTFORDSHIRE AL5 1FA | £950,000 2025-09-18 semidetached freehold |
| PARK LODGE (FLAT 8), AVENUE ST NICHOLAS HARPENDEN HERTFORDSHIRE AL5 2BX | £1,200,000 2025-09-17 flatmaisonette leasehold |
| 30, CRABTREE LANE HARPENDEN HERTFORDSHIRE AL5 5NS | £1,395,000 2025-09-17 detached freehold |
| 14, ST JAMES COURT HARPENDEN HERTFORDSHIRE AL5 4UW | £245,000 2025-09-17 flatmaisonette leasehold |
| 3, GROVE AVENUE HARPENDEN HERTFORDSHIRE AL5 1EU | £1,000,000 2025-09-05 semidetached freehold |
| 28, SIBLEY AVENUE HARPENDEN HERTFORDSHIRE AL5 1HF | £793,650 2025-09-05 semidetached freehold |
| 54, CARPENDERS CLOSE HARPENDEN HERTFORDSHIRE AL5 3HN | £995,000 2025-09-04 detached freehold |
| 38, MILLSTONE WAY HARPENDEN HERTFORDSHIRE AL5 5FE | £320,000 2025-09-04 flatmaisonette leasehold |
| 82, COLDHARBOUR LANE HARPENDEN HERTFORDSHIRE AL5 4NH | £261,000 2025-08-20 flatmaisonette leasehold |
| MAISON ROSE, THE COMMON HARPENDEN HERTFORDSHIRE AL5 3PE | £3,706 2025-08-14 otherPropertyType freehold |
| 68, COLDHARBOUR LANE HARPENDEN HERTFORDSHIRE AL5 4NH | £305,000 2025-06-30 flatmaisonette leasehold |
| 2, FARM CLOSE HARPENDEN HERTFORDSHIRE AL5 3NH | £450,000 2025-06-27 terraced freehold |
| 23A (FLAT 25), LEYTON ROAD HARPENDEN HERTFORDSHIRE AL5 2FH | £687,249 2025-06-27 flatmaisonette leasehold |
| 6, WALDEGRAVE PARK HARPENDEN HERTFORDSHIRE AL5 5SF | £207,500 2025-06-25 flatmaisonette leasehold |
| 10, WESTMINSTER COURT HARPENDEN HERTFORDSHIRE AL5 1TH | £295,000 2025-06-13 flatmaisonette leasehold |
| 41, HIGHFIELD AVENUE HARPENDEN HERTFORDSHIRE AL5 5UB | £1,200,000 2025-06-12 semidetached freehold |