Lots abutting or immediately across an alley from an R-1, R-1E, or R-2 residential zone which contain five or more dwelling units 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. 20-013 § 16, 2020; Ord. 05-004 § 3, 2005)