Describes the development of one of the first cohousing communities in the U.S. offering a social understanding of its commons. Cohousing, a form of communal living that clusters around shared common space, began about a half century ago in Denmark. We Built a Village describes the process of planning and building of an early cohousing community in Cambridge, Massachusetts, and the way the people involved simultaneously built their homes and their social structure. As both a memoir and a sociological analysis that probes the differences between commons and markets, it is unique among books about cohousing. When this group of people began in the late 1990s to construct their cohousing community, they set in motion a counterpoint between the physical spaces and the social configurations that would guide their lives together, even up to creative responses to the recent pandemic.