For every main or accessory building in a commercial district, the following minimum yard shall be provided:
(a) Front Yards. There shall be a setback of not less than 30 feet in depth, and on corner lots, the setback shall be not less than 10 feet on a secondary street, unless shown otherwise on the Zone Map.
(b) Side and Rear Yards. Where side yards are provided, the total width of the 2 side yards on a lot or between buildings on adjacent lots shall be not less than 15 feet. Where a building in this district is located on a lot adjoining a side or rear lot line of a residential district, the yard shall be not less than 40 feet in width.
(c) All Required Yards. The above required front, side, and rear yards may be used for off-street parking facilities, but not within 10 feet of a residential district line or street line, and a fence or landscaping may be required by the Commission.
(1980 Code 151.68)