The Bündnis junger Genossenschaften (BjG) is a network organization based in Berlin, Germany, founded in 2017. It unites 35 member cooperatives focused on promoting sustainable, mixed, and solidarity-based urban development. The primary goal of the BjG is to create neighborhoods with permanently affordable housing, especially for households with special needs. The organization advocates for supportive political and economic conditions for cooperatives, emphasizing community engagement and social inclusion in urban planning. Through knowledge sharing and collective advocacy, the BjG aims to enhance cooperative housing and community-led development, contributing to a more inclusive and sustainable urban environment in Berlin.