Territorial planning does not integrate European Commission formal competences. But this has supported multiple favorable initiatives to the emergency of transnational development strategies of Communitarian space. This apparent contradiction is analyzed from the reconstitution of the process that has permitted the European Commission to hold today an effective role in this matter, in little more than ten years. The assumption of this paper is mainly based in informal processes of construction of a collective shared vision about Europes future space. The text evaluates both meaning and possible implications of this evolution, defending the need of questioning supra-national strategies of territorial planning, as a way to participate in the political debate about the future of European and national projects.Territorial planning does not integrate European Commission formal competences. But this has supported multiple favorable initiatives to the emergency of transnational development strategies of Communitarian space. This apparent contradiction is analyzed from the reconstitution of the process that has permitted the European Commission to hold today an effective role in this matter, in little more than ten years. The assumption of this paper is mainly based in informal processes of construction of a collective shared vision about Europes future space. The text evaluates both meaning and possible implications of this evolution, defending the need of questioning supra-national strategies of territorial planning, as a way to participate in the political debate about the future of European and national projects. -