A solid masonry wall not less than six feet in height nor less than eight inches in thickness shall be built and maintained on those sides of property in a C-4 Zone which adjoins an agricultural or residential zone, school or park; except, that said wall shall be three and one-half feet where it adjoins the front yard setback area. The wall need not be installed until the property is developed for commercial uses.
('64 Code, § 44.17) (Am. Ord. 358, passed 7-10-69) Penalty, see § 10.97