Wiktionary
community ownership
n. group possession of an item or concept
Wikipedia
Community ownership
Community owned assets or organisations are those that are owned and controlled through some representative mechanism that allows a community to influence their operation or use and to enjoy the benefits arising.
Benefits of community ownership in infrastructure projects such as dams and irrigation are claimed to include increased responsiveness to needs of that community and the community valuing the projects more highly.
Usage examples of "community ownership".
The result is that the holdings have machinery in community ownership and move the pieces from place to place for clearing.