The concept, originating about 40 years ago in Denmark, attempts to re-create a sort of old-fashioned village atmosphere where some 15 to 30 households, reflecting various generations, live on a half acre to an acre of land and share resources as a community.
http://www.vancouversun.com/opinion/columnists/Barbara+Yaffe+housing+another+option+real+estate/11112800/story.html