The average house price on Mardley Dell, Welwyn is £467,913. Prices range from £220,000 to £817,500.
There are 12 properties on Mardley Dell, Welwyn.
Average house prices on Mardley Dell, Welwyn have risen by 232% from £246,250 in 1996 to £817,500 in 2018.
Mardley Dell, Welwyn is in the AL6 postcode district.
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