A lot, which abuts or is immediately across an alley from an R-1 or a R-1E residential zone and which contains five or more dwelling units or any nonresidential use, shall have a six-foot solid or interlap fence on the side or sides abutting or across an alley from the lower density residential zones. The fence shall be well built, finished and maintained. (Ord. 21-002 § 25, 2021; Ord. 05-026 § 4, 2005; Ord. 627 § 7, 2004. Formerly 17.28.068)