Date,Address,Postcode,Price,Type,Ownership,NewBuild,SaleType 2023-03-03,"Greenhaven, The Common, Harpenden",AL5 3NT,1250000,Detached,"Freehold",No,Non-standard 1999-02-04,"Greenhaven, The Common, Harpenden",AL5 3NT,325000,Detached,"Freehold",No,Standard