In the urban centers of Europe, residents are increasingly demanding not only to participate in the discussion about the densification of our cities, but also to shape it actively. It is especially creative planning projects that succeed in finding new role models and structures for urban development: artists act as urban developers, theaters carry out urban projects, curators curate the city, architects also take on the role of social workers. This results in new hybrid fields of action that require a rethinking of established strategies and the constellations of those involved.0This volume brings together perspectives from quite different professions at the interface of urban planning and cultural practice, in order to seek answers to some central questions: how does this hybridity generate a contemporary urbanity? How must contemporary institutions be structured? And how should a new culture of cooperation be set up to enable a mutual dialog and transparency in development processes between citizens and authorities, as well as between the various stakeholders?0.