Mardley Dell, Welwyn Hatfield
Sold-price history and street data for Mardley Dell in Welwyn Hatfield — every sale sourced to HM Land Registry, free from Acreright.
Homes sold here: 16 detached.
2 companies have their registered office on this street, of which 1 is a property company (Companies House, 2026-07-01) — where a company is registered, not necessarily where it trades.
EPC ratings on this street: 67% are rated C or better (C 4 · D 2) — Energy Performance of Buildings register.
Full Welwyn Hatfield area report → — prices, schools, crime, transport and more.
Sold prices
| Date | Address | Type | Tenure | Price |
|---|---|---|---|---|
| Jun 2021 | 19, Mardley Dell | Detached | Freehold | £900,000 |
| Mar 2021 | 1 MARDLEY DELL WELWYN | Detached | Freehold | £775,000 |
| Mar 2020 | 11, Mardley Dell | Detached | Freehold | £752,000 |
| May 2018 | 19, Mardley Dell | Detached | Freehold | £817,500 |
| Nov 2017 | 21, Mardley Dell | Detached | Freehold | £805,000 |
| Oct 2010 | 6 MARDLEY DELL | Detached | Freehold | £745,000 |
| Jul 2010 | 1 MARDLEY DELL WELWYN | Detached | Freehold | £525,000 |
| Jul 2010 | 17 MARDLEY DELL | Detached | Freehold | £585,000 |
| Nov 2007 | 14 Mardley Dell | Detached | Freehold | £635,000 |
| Oct 2007 | 8 MARDLEY DELL | Detached | Freehold | £650,000 |
| Nov 1998 | 11, Mardley Dell | Detached | Freehold | £270,000 |
| Oct 1997 | 6 MARDLEY DELL | Detached | Freehold | £365,000 |
| Sep 1997 | 7 MARDLEY DELL | Detached | Freehold | £220,000 |
| Jan 1997 | 15 MARDLEY DELL | Detached | Freehold | £249,950 |
| Dec 1996 | 4 MARDLEY DELL | Detached | Freehold | £232,500 |
| May 1996 | 10 MARDLEY DELL | Detached | Freehold | £260,000 |
HM Land Registry Price Paid · updated Jul 2026. Prices are nominal. “·B” marks a Land Registry category-B transfer (may not reflect full market value).
Has it held its value?
3 homes on Mardley Dell sold twice in the records — too few (3) to quote a reliable loss rate, so we show the count, not a percentage. How this is measured.
What locals say
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