Architects , and others built the Berlin Modernism Housing Estates, now a World Heritage Site, consisting of thousands of homes built in and around Berlin, including the Horseshoe Estate (named for its shape), and "Uncle Tom's Cabin" estate (named after a local restaurant). In Frankfurt the architect lead the New Frankfurt public housing project, in which over 12,000 apartments were built 1925–1930. May ran his own sizable research facility to investigate, for instance, air-flow in various floorplan configurations, construction techniques, etc. The Austrian architect applied the principles of Taylorism to the kitchen workspace and developed the Frankfurt kitchen while working for .