The Weissenhof Estate is a housing estate built for the Deutscher Werkbund exhibition in Stuttgart in 1927. It was an international showcase of what later became known as the International style of architecture. Two of the buildings were designed by the French-Swiss architect Le Corbusier and these are now part of the World Heritage Site The Architectural Work of Le Corbusier, an Outstanding Contribution to the Modern Movement, which was designated in 2016. The World Heritage Site consists of 17 separate sites in seven countries. For the Weissenhof Estate, only Le Corbusier's houses are part of World Heritage Site itself: the remainder of the Weissenhof Estate and some adjacent streets and buildings, a surface of 33.6213 ha, are however part of the World Heritage Site's buffer zone.