Understudied relative to other forms of intentional community, and under-recognized in policy-making circles, urban cohousing communities situate wellbeing as simultaneously social and subjective, while catering for groups of people so diverse in age. Collaborative Happiness looks at two such urban cohousing communities: Kankanmori, in Tokyo; and Quayside Village, in Vancouver. In expanding beyond mainstream approaches to happiness focused exclusively on the individual, Quayside Village and Kankanmori provide an alternative model for how to understand and practice the good life in an increasingly urbanized world marked by crisis of both social and environmental sustainability.