In order to obtain insights related to the arrangement of ownership and management administration-which ensure appropriate maintenance in collective owner-occupied housing-various functions of the Norwegian co-operative system, including empowerment of management bodies, promotion of resident participation in decision-making, and enhancement of community relations, were examined, based on interviews of related organizations in Norway, as well as literature study. The findings indicate that in order to make special arrangements, such as indirect-ownership, to promote sustainable use of housing stock, it is necessary to introduce mechanisms not only ensuring appropriate maintenance but also improving community relations.