After the end of World War I, the state responded to the rapid population growth in the country's industrial centers by awarding subsidies for non-profit housing construction under the Prussian Housing Act. As a result, new housing construction companies arose in Germany. 1919 also saw the founding of Allgemeine Bauverein AG in Essen, which was to construct the former AllbauHaus on Pferdemarkt, a building with a varied history. Built in 1928, the multifunctional commercial and office building designed by Essen architect Ernst Knoblauch represented a modern, rational and businesslike building type for its time. After surviving the Second World War almost unscathed, it is now listed under monument protection. During the Ruhrtriennale 2021, US artist Asad Raza will show his large-scale installation Absorption here.