St Helens2014-04-022014-04-022009-03-25https://hdl.handle.net/1794/1511414 pp. Adopted 2009-03-25. Department of Land Conservation and Development Notice of Adopted AmendmentText amendment to City's development code to address the use of storage containers (often referred to as Conex boxes) in certain zoning districts of the City and to extend the maximum time extension allowed for Subdivision preliminary plats from six months to 12 months.en-USPublic DomainLand UseAdopted Plan