Establishes standards of review for city or county decision on application for certain housing developments located within urban growth boundary. Becomes operative July 1, 2018. Amends definition of "needed housing." Prohibits city or county from denying application for housing development that complies with clear and objective standards. Prohibits city or county from reducing density or height of application if density or height applied for is at or below authorized density for zone. Permits local government to apply clear and objective standards, conditions and procedures regulating development of housing that regulate density or height of development. Prohibits city with population greater than 2,500 or county with population greater than 15,000 from prohibiting building accessory dwelling unit in area zoned for single-family dwellings. Becomes operative July 1, 2018. Requires city and county to allow nonresidential place of worship to use real property for affordable housing. Requires local government to annually report to Department of Land Conservation and Development certain information relating to applications received for development of housing containing one or more units sold or rented below market rate as part of housing program. Declares emergency, effective on passage.