Walter Gropius. Dessau Bauhaus Building. 1926. Gropius is the founder of the school. The principle of Bauhaus design is &quot;form follows function.&quot; Think of the purpose first, then build around it. Simplicity of design is also important. One of the greatest developments is the use of reinforced steel walls, which allow heavy, load-bearing walls to come down. In turn, this allows windows (even on corners), which diminishes the separation between the external and internal.