The Proletarian Building Exhibition took place in Berlin in 1931 and was developed by the Collective for a Socialist Architecture, who intended it to stand in opposition to the German Building Exhibition. Wohnungsfrage has revisited original historical documents and made them the focus of discussion in a conference run in conjunction with the project bauhaus. Research into individuals like Arthur Korn, Alexander Altberg, and Hermann Duncker and their links to projects like the CIAM, the Marxistische Arbeiterschule, and the Bauhaus, as well as their connections with the USSR, demonstrates the degree to which the networks and political attitudes of modernist architecture were interwoven with one another. The Haus der Kulturen der Welt (Berlin) project Wohnungsfrage investigates the fraught relationship between architecture, housing, and social reality in an exhibition of experimental housing models, an international academy, and a publication series that examines various options for self-determined, social and affordable housing. This publication series presents key historical works accompanied by new commentaries, contemporary case studies from around the world, and publications by activists concerned with urban policy issues, architects, and artists.