Late April 2013 activists from tenant organizations, local urban movements, militant research and international housing rights networks met in Essen and Wuppertal (Germany) for internal and public meetings. They discussed reasons and possible tasks of international solidarity cooperation in the field of housing and cities under the conditions of financialisation and crisis, austerity regimes and urban transformation. Coming from Barcelona, Berlin, Hamburg, Istanbul, London, Madrid, Padova, Paris, Pescara, the Ruhr-District, Rotterdam, Santiago, Vienna the also brainstormed some ideas for coordinated activities in future. The results were fixed in a letter to movements in Europe. Below we are quoting the still interrsting parts of it.