Dutch architect, furniture designer and urban planner. In the second decade of the twentieth century, he worked in the offices of J. M. van der Meij and Marius Jan Granpré Molière and joined the avant-garde architects’ association De Opbouw. He moved to Berlin in 1922 where he served as a draughtsman for architects such as Max Taut and Hans Poelzig. He met El Lissitzky there and the two men moved to Zurich a year later. In Zurich, he worked in the office of Karl Moser, and with Hans Schmidt and Emil Roth, Stam founded the journal ABC: Beiträge zum Bauen. Stam gained renown for functionalist designs such as the house for the Weissenhof Siedlung, the Werkbund housing exhibition that took place in 1927 in Stuttgart. Stam was also a founding member of CIAM (the Congrès Internationaux d’Architecture Moderne). After working in Frankfurt for a few years, Stam joined the team lead by Ernst May, which traveled to the USSR in 1930 and influenced the planning of cities such as Manitogorsk and Orsk. In 1934, Stam returned to the Netherlands to set up his own architectural office. He practiced and taught in Germany and the Netherlands for the remainder of his career. Stam was the first to manufacture a cantilevered tubular steel chair in 1927. Breuer contested that Stam was influenced by Breuer’s own experiments with tubular steel furniture during a visit to the Bauhaus in 1926 and that the two men had discussed Breuer’s ideas for a cantilevered chair at that time.