51063 Cologne-Mülheim: The state of North Rhine-Westphalia has named the Stegerwaldsiedlung in the Cologne district of Mülheim as the 87th climate protection estate. With 968 kWp, it has the largest roof-integrated PV system on a housing estate in NRW and the third largest in Germany. 689 residential units of the Cologne housing estate from the 1950s were refurbished for energy efficiency and the energy generation systems were renewed. Completion: 2019
85625 Glonn: model farm for organic farming, with restaurants, bistros etc.
28201 Bremen: A housing and economic project for women. Women from different generations and life situations live and manage under one roof to increase the quality of their everyday life. Realisation under Feng Shui and Geomancy aspects. Expo 2000 project. Completion: 2001
79249 Merzhausen: 20 units, architecture: Rolf Disch. Flexible, "organic" floor plans, social concept, family-friendly residential courtyard typologies, cost-effective, completion: 1980.
