Hannes Meyer (1889–1954) was a Swiss architect and urban planner known for his socially driven, functionalist approach to design. As the second director of the Bauhaus (1928–1930), he emphasized collective housing, affordability, and the integration of technology in architecture. His notable projects include the ADGB Trade Union School and the Petersschule in Basel. Meyer’s Marxist ideology led to his dismissal from the Bauhaus, after which he worked in the Soviet Union and Mexico, contributing to large-scale urban planning. His belief in architecture as a social service profoundly influenced modernist housing and functionalist urban development.