This report examines the re-emergence of the urban commons as both a bottom-up emergence by citizens/commoners and a radical municipal administrative configuration. Starting with an exploration of the relationship between cities and the commons, with a particular focus on the recent revival and growth of urban commons, we attempt to answer the question of why urban commons are so crucial for a social-ecological transition. Then we review grassroots initiatives for urban commons transitions both in the global north and south, but with specific attention towards the municipal coalitions of Barcelona, Bologna, Naples, Frome and Ghent.

As a conclusion we propose an institutional framework for urban commons transitions. We look to answer the following questions: i) what can cities do to respond to the new demands of citizens as commoners; ii) what their role may be in facilitating a social-ecological transition; and iii) what institutional adaptations would favour such a role.

This report was written by Michel Bauwens and Vasilis Niaros and co-published by the P2P Foundation and Heinrich Böll Foundation.