There are many kinds of resources and goods that urban residents have access to, share together, collaborate for and depend upon. Some of these resources are contested resources, meaning that they may not be considered to be open or accessible to the public but many believe that they should be considered a common resource of good and in fact are often treated as such, even informally. How do we design collective institutions to manage the complexity of these resources, solve conflicts and engage for urban commoning/collaboration public, private and community actors? Can collaboration among citizens in an urban context be considered a democratic innovation and improve the quality of democracy? Is urban commoning/collaboration an update to old forms of democracy (e.g. participatory, deliberative, associative, representative) or a new form of democracy (e.g. collaborative democracy)? What is the role left to representative democracy institutions in all this? Can policentricity help to facilitate decision making processes on how urban commons are used, who has access to them, and how to more fairly distribute access to common pool resources for the production of common goods?