Wohnungsbauserie 70; was developed in the early 1970s by the German Academy of Architecture and the Technical University of Dresden. The first block WB70 was built in 1973, in Neubrandenburg. Of the approximately 1.52 million dwellings constructed in slab construction to 1990, the Type 70 WBS is widespread, accounting for up to 42 percent of housing constructed in the East.