Working with leading architects of the Weimar Republic (Ernst May in Frankfurt, Martin Wagner and Bruno Taut in Berlin, Otto Haessler in Celle), Migge's designs for the" Siedlungen" (settlements) characteristically comprised low-lying small flats or row houses, with adjacent or nearby garden plots. One of the "Siedlungen" that best expressed this system was Ziebigk in Dessau, designed with Leopold Fischer in 1926 and completed in 1929. Migge also invented a “growing house” to provide housing in the form of a wall to which small units could be added when needed or when affordable. Stressing the importance of the occupant in the planning, use and shaping of the dwelling space, Migge considered the dwelling unit as malleable based on need. The wall was a key element in his designs linking architecture and landscape. In the new housing developments of the 1920s, the "Schutzmauer" (protective walls) were active functional elements, not merely separating plots, the geometric lines of the Siedlung blocks extending into the garden as part of an overall rational ordering system.