Date,Address,Postcode,Price,Type,Ownership,NewBuild,SaleType 2021-06-24,"19 Mardley Dell, Welwyn",AL6 0UR,900000,Detached,"Freehold",No,Standard 2021-03-26,"1 Mardley Dell, Welwyn",AL6 0UR,775000,Detached,"Freehold",No,Standard 2020-03-11,"11 Mardley Dell, Welwyn",AL6 0UR,752000,Detached,"Freehold",No,Standard 2018-05-10,"19 Mardley Dell, Welwyn",AL6 0UR,817500,Detached,"Freehold",No,Standard 2017-11-23,"21 Mardley Dell, Welwyn",AL6 0UR,805000,Detached,"Freehold",No,Standard 2010-10-01,"6 Mardley Dell, Welwyn",AL6 0UR,745000,Detached,"Freehold",No,Standard 2010-07-09,"1 Mardley Dell, Welwyn",AL6 0UR,525000,Detached,"Freehold",No,Standard 2010-07-01,"17 Mardley Dell, Welwyn",AL6 0UR,585000,Detached,"Freehold",No,Standard 2007-11-16,"14 Mardley Dell, Welwyn",AL6 0UR,635000,Detached,"Freehold",No,Standard 2007-10-04,"8 Mardley Dell, Welwyn",AL6 0UR,650000,Detached,"Freehold",No,Standard 1998-11-11,"11 Mardley Dell, Welwyn",AL6 0UR,270000,Detached,"Freehold",No,Standard 1997-10-29,"6 Mardley Dell, Welwyn",AL6 0UR,365000,Detached,"Freehold",No,Standard 1997-09-06,"7 Mardley Dell, Welwyn",AL6 0UR,220000,Detached,"Freehold",No,Standard 1997-01-07,"15 Mardley Dell, Welwyn",AL6 0UR,249950,Detached,"Freehold",No,Standard 1996-12-12,"4 Mardley Dell, Welwyn",AL6 0UR,232500,Detached,"Freehold",No,Standard 1996-05-29,"10 Mardley Dell, Welwyn",AL6 0UR,260000,Detached,"Freehold",Yes,Standard