In Germany’s project-based housing cooperatives, not all projects are created with affordability as the main objective. They often provide societal benefits by offering multigenerational living (in which older residents age in place with younger residents), mixed-functional living quarters (in which people with disabilities can live independently and in an integrated setting), alternative to shelter for newly arrived immigrants, and an open-mindedness that attracts people from diverse backgrounds.

German cities also recognize that small, cooperative housing projects provide indirect benefits, including revitalization of empty or underused building stock; provision of ownership of housing to groups often underserved by traditional financial markets; and improvement in the stability and quality of affordable housing because residents own a share in the building and must be committed to the project to see it to fruition.