In a C-3 zone, outside storage abutting or facing a residential zone shall be enclosed by a sight obscuring fence. The fence shall obstruct the storage from view on the sides of the property abutting or facing a residential zone. The fence shall be of such material and design as will not detract from adjacent residences, shall be free of advertising, and shall be constructed according to plans submitted by the owner or authorized agent and approved by the planning director. Outside storage in a required yard shall not exceed ten feet in height. (Ord. 4477 §3, 1990).