KOOPERATIVE GROSSSTADT eG, based near Munich, is a housing cooperative that has been at the forefront of innovative residential projects since its founding in 2015. The cooperative aims to address urban housing issues from social, political, ecological, and architectural perspectives. It seeks to create a vibrant, livable city where diverse lifestyles coexist.

One of KOOPERATIVE GROSSSTADT's notable projects is the San Riemo apartment complex, located in the trade-fair neighborhood of Riem. Completed in December 2020, it features 27 flats along with communal and commercial spaces. The cooperative is also involved in other projects like Freihampton and the upcoming metso’metso community housing in Haidhausen.

KOOPERATIVE GROSSSTADT emphasizes community-driven development and sustainability. It involves members in the planning and decision-making processes, promoting self-management and participation. The organization is led by individuals with architectural backgrounds, including co-founder Christian Hadaller, who plays a significant role in shaping its vision.

The cooperative's approach is distinct in its open and inclusive competition process, which allows architects of all levels to participate. This approach reflects its desire to challenge traditional architectural norms and promote new ideas in urban development. Overall, KOOPERATIVE GROSSSTADT is dedicated to transforming urban living spaces while fostering strong community ties and sustainable practices.