Harundale is an unincorporated community in Anne Arundel County, Maryland, United States. In 1947 the Byrne Organization made news when it set up a prefabrication shop on the 300-acre site and churned out parts for all 1,200 homes at once. The houses featured welded steel frames which formed the basis of a structure using other materials. The houses were constructed in two different styles with three or four rooms on a concrete slab, which sold for $6,900. The community was one of largest prefabricated developments in America. Their construction marked the start of phenomenal post-World War II suburbanization of previously rural Anne Arundel County.The needs of the new community's more than 5,000 people were first served by a strip shopping center. Harundale Mall, reportedly the first enclosed shopping mall east of the Mississippi, was opened in 1958.