This two-session workshop will explore a range of innovative approaches to building urban commons such as community land trusts; co-operative solutions for housing, renewable energy and garden cities; local food systems; and the Bologna Regulation for the Care and Regeneration of Urban Commons, among others. Presentations will discuss creative initiatives in Barcelona, Spain; Lille, Italy; Seoul, Korea; Bologna, Italy; Madison (Wisconsin, USA), and in Great Britain. We plan extensive Q&A and discussion, with an accent on action steps for moving forward.