All open off-street parking areas having more than six parking spaces and all off-street loading and unloading spaces shall be effectively screened from any abutting residential lots by a solid wall or opaque fence six feet high, or by any other device as may be approved by the Council. The screening device shall not extend within ten feet of any street right-of-way. These off-street parking and loading areas within any yard which abuts along a street which is residentially zoned on the side opposite shall be screened from street view by a screening device as approved by the Council.
(1989 Code, § 11.72)