| 10, HILLSIDE WAY WELWYN HERTFORDSHIRE AL6 0TY | £468,367 2020-09-30 detached freehold |
| 22, ROBBERY BOTTOM LANE WELWYN HERTFORDSHIRE AL6 0UW | £930,000 2020-09-25 detached freehold |
| 2, BADGERS WALK TEWIN WELWYN HERTFORDSHIRE AL6 0HP | £1,215,000 2020-09-25 detached freehold |
| 7, ST JOHNS CLOSE WELWYN HERTFORDSHIRE AL6 9RB | £795,000 2020-09-25 detached freehold |
| 42, NEW ROAD WELWYN HERTFORDSHIRE AL6 0AH | £1,596,875 2020-09-22 detached freehold |
| 20, NEW ROAD WELWYN HERTFORDSHIRE AL6 0AG | £1,271,875 2020-09-22 detached freehold |
| 27, GLEBE ROAD WELWYN HERTFORDSHIRE AL6 9PB | £465,000 2020-09-21 semidetached freehold |
| LYNDE LODGE (14), BUTTERWICK WAY WELWYN HERTFORDSHIRE AL6 9GN | £500,000 2020-09-15 flatmaisonette leasehold |
| 2, THE CHASE WELWYN HERTFORDSHIRE AL6 0QT | £685,000 2020-09-15 detached freehold |
| 5, JENNING WOOD WELWYN HERTFORDSHIRE AL6 0SL | £830,000 2020-09-14 detached freehold |
| 7, WILSHERE ROAD WELWYN HERTFORDSHIRE AL6 9PU | £425,000 2020-09-11 semidetached freehold |
| 18, NEW ROAD WELWYN HERTFORDSHIRE AL6 0AG | £1,100,000 2020-09-11 detached freehold |
| LONGRIDGE, CHESTNUT WALK WELWYN HERTFORDSHIRE AL6 0SB | £645,000 2020-09-10 detached freehold |
| 9, BIRCH GROVE WELWYN HERTFORDSHIRE AL6 0QP | £545,000 2020-09-08 detached freehold |
| 17, AYOT GREEN AYOT ST PETER WELWYN HERTFORDSHIRE AL6 9BA | £715,000 2020-09-04 detached freehold |
| 22, LOWER MARDLEY HILL WELWYN HERTFORDSHIRE AL6 0UQ | £610,000 2020-09-04 detached freehold |
| WALNUT SPRINGS, RABLEY HEATH ROAD WELWYN HERTFORDSHIRE AL6 9UA | £2,250,000 2020-09-01 otherPropertyType freehold |
| 27, UPPER GREEN ROAD TEWIN WELWYN HERTFORDSHIRE AL6 0LE | £1,200,000 2020-08-28 detached freehold |
| 15, NORMAN ROAD WELWYN HERTFORDSHIRE AL6 9JW | £385,000 2020-08-28 terraced freehold |
| LORD MEAD HOUSE AYOT ST LAWRENCE WELWYN HERTFORDSHIRE AL6 9BW | £3,150,000 2020-08-28 otherPropertyType freehold |