Happy Valley (Or.)2014-04-152014-04-152008-04-21https://hdl.handle.net/1794/1624356 pp. Adopted 2008-04-21. Department of Land Conservation and Development Notice of Adopted Amendment19 properties to be annexed into City of Happy Valley. Approximately 82 acres. Expedited process.en-USPublic DomainLand UseHappy Valley Notice of Adopted Amendment (2008-04-21)Adopted Plan