| 32, WEST WAY HARPENDEN HERTFORDSHIRE AL5 4RD | £910,000 2025-10-17 detached freehold |
| 30, CROSS WAY HARPENDEN HERTFORDSHIRE AL5 4QU | £953,600 2025-10-16 semidetached freehold |
| 32, PORTERS HILL HARPENDEN HERTFORDSHIRE AL5 5HR | £645,000 2025-10-13 semidetached freehold |
| 70, OX LANE HARPENDEN HERTFORDSHIRE AL5 4PW | £1,465,000 2025-10-10 detached freehold |
| 4, WOOD END HILL HARPENDEN HERTFORDSHIRE AL5 3EZ | £1,510,000 2025-10-03 detached freehold |
| 40, MARQUIS LANE HARPENDEN HERTFORDSHIRE AL5 5AE | £565,000 2025-10-03 semidetached freehold |
| 44, LOWER LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 5AH | £540,000 2025-10-02 terraced freehold |
| 22, WEYBOURNE CLOSE HARPENDEN HERTFORDSHIRE AL5 5RE | £525,000 2025-10-01 terraced freehold |
| 5, LOWER LUTON ROAD HARPENDEN HERTFORDSHIRE AL5 5AF | £400,000 2025-09-30 terraced freehold |
| 26, SALISBURY ROAD HARPENDEN HERTFORDSHIRE AL5 5AY | £424,000 2025-09-26 semidetached freehold |
| 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 |