The development of collaborative practices in the field of urban commons might represents an observation point for the study of democratic innovations. This issue shall be considered particularly interesting because it arises from the intersection of different fields of study: in addition to studies on democracy, the theory of the commons (Ostrom 1990) and the urban commons, studies on local co- governance, active citizenship (Morlino & Gelli 2010; Bang 2005;). Research efforts on the open government framework, of which collaboration is one of the constitutive dimensions (Lathrop & Ruma 2010; de Blasio & Sorice 2016) also shows how the creation of public-private-civic/commons partnership (Foster & Iaione 2016) as a component of this variabl...