However not all modernist social housing projects were as successful: many were demolished from the 1970s due to large-scale failure. The ultimate example of the failure of the modernist utopia is the now infamous Pruitt Igoe urban housing development in St. Louis, Missouri, completed in 1955. The development was planned according to the modernist principles of Le Corbusier, and comprised of 33 11 storey high rise blocks made up of small individual apartments. There were communal areas including large corridors, outdoor spaces around the blocks, and communal rooms for activities such as laundry, intended to increase the social interaction amongst the community.