Local governments in Portland, Ore., Los Angeles, Calif., and Kirkland, Wash., have taken steps to promote small housing development, according to the U.S. Department of Housing & Urban Development's case studies clearinghouse.
Portland's Living Smart Program offers permit-ready "skinny home" plans — plans pre-approved by the city council that have already passed life, safety, and structural review — that developers can acquire to build on small, infill lots in the city's neighborhoods.