Processes and principles from sociocracy have been used to organize neighborhoods: sociocratic elections, linked circles and grassroots power.
The biggest organization of neighborhood circles is currently in India: the neighborhood parliaments and the children’s parliaments having hundred thousands of members in linked (or federated) circles, empowering people to take charge of their immediate needs and resources. There are initiatives in other countries to replicate similar structures and to strengthen and revive neighborhood communities and their ability to improve their own living situation. See their page on Facebook, and see this page on neighborhoodization.
This is a short version of the inspiring interview Sociocracy For All did with the founder of the neighborhood and children’s parliaments, Edwin John in spring of 2017.