The residential and public buildings were designed by these architects, and by architects born locally including Ben-Ami Shulman, who put the principles of modern architecture into practice. The Bauhaus principles, with their emphasis on functionality and inexpensive building materials, were perceived as ideal in Tel Aviv. The architects fleeing Europe brought not only Bauhaus ideas; the architectural ideas of Le Corbusier were also mixed in. Furthermore, Erich Mendelsohn was not formally associated with the Bauhaus, though he had several projects in Israel in the 1930s as did Carl Rubin, an architect from Mendelsohn's office. In the 1930s in Tel Aviv, many architectural ideas were converging and Tel Aviv was the ideal place for them to be tested.