PREVI was an experimental district collectively designed by many radical architects one of which was Aldo van Eyck.  They developed prototypes of urban housing for the quickly growing population.  Aldo van Eyck noticed that women were the heart of the home, and placed the kitchen in the center of the floor plan. He also took a more proscriptive approach to how the owners should expand, creating diagonally walled courtyards to discourage people building on top of them. It did not work out well though because outdoor space is not sacred to a family of eight with another generation on the way.