By means of promoting very concrete interventions in the city of Berlin, the aim of the Berlin Studio is to critically review the on-going strategies of the city of Berlin as well as to anticipate its potential transformation. In the two previous semesters the Berlin Studio explored and reacted to the StEP Plan of the Senat regarding the decentralization of the city, as well as to the document “Perspectives for 2010, Pilot Projects” promoted by the Stadtforum. This semester we have selected four “open sites” which we believe give a good overview of the city