| Address | Date | Type | Price |
|---|---|---|---|
| 17, MARDLEY AVENUE | 31-01-2025 | Detached | £750,000 |
| 7A, MARDLEY AVENUE | 30-10-2024 | Semi-Detached | £500,000 |
| 39, MARDLEY AVENUE | 28-05-2024 | Detached | £1,000,000 |
| 7, MARDLEY AVENUE | 25-10-2022 | Semi-Detached | £470,000 |
| 7A, MARDLEY AVENUE | 30-06-2021 | Semi-Detached | £425,000 |
| 35, MARDLEY AVENUE | 27-11-2020 | Detached | £775,000 |
| 35, MARDLEY AVENUE | 16-08-2013 | Detached | £515,000 |
| 39, MARDLEY AVENUE, WELWYN | 05-12-2008 | Detached | £500,000 |
| 29, MARDLEY AVENUE, WELWYN | 19-01-2007 | Detached | £456,000 |
| 17, MARDLEY AVENUE, WELWYN | 18-12-2006 | Detached | £395,000 |