ICA Housing, in conjunction with CECODHAS, helped fund a project designed to look at different housing co-operatives around the world and try and draw some lessons useful to other housing co-operatives around the world. Titled 'Application of Co-operative Principles in Practice' it documents twenty-one cases of housing co-operatives  from twelve countries. To view the four profiles on German housing co-operatives, click on the respective name:  Amaryliss Association and Co-operative, BBWo 1892, Berlin, Freie Scholle, Berlin and Vermietungsgenossenschaft Ludwig Frank, Mannheim.