The purpose of this study was to examine the possibility of application of American cohousing concepts for the development of apartment housing in Korea. The fieldwork included two American cohousing communities of 37 households, extensive interviews, questionnaire, and evaluation of site planning and development process. This paper looked at the real and potential benefits of cohousing in respect of land-use efficiency, resource usage, and the quality of social relationship within the residents. The paper suggests that the abstract notion of a sense of community and concrete issues of housing form are inseparably connected. The paper goes on to suggest that the educational program and the support from the government also are needed for the development of sustainable community.