Social movements throughout the world are rebelling against liberal democracy and capitalism, while at the same time experimenting ways of being, thinking and doing based on autonomy, respect of diversity and mutual aid. In this article, political, cultural and economic practices enacted by the Autonomous Social Center of Point St. Charles during the struggle to reclaim Building 7 are examined in light of the concept of collective autonomy. As these subversive practices are rendered visible, the revolutionary potential of this anti-authoritarian initiative situated on the margins of the social economy in Quebec emerges.