(a) In any district, in connection with every building or part thereof hereafter erected and having a gross floor area of 10,000 square feet or less, which is to be occupied by manufacturing, storage, warehouse, retail store, wholesale store, market, hotel, hospital, mortuary, dry cleaning or other uses similarly requiring the receipt or distribution by vehicle of material or merchandise, there shall be provided and maintained on the same lot with such building at least one off-street loading space; plus one additional such loading space for each additional 20,000 square feet or major fraction thereof of gross floor area when required because of the volume or receipt or distribution by vehicle of material or merchandise.
(b) Each loading space shall be ample to accommodate the largest vehicle anticipated.
(c) Subject to the limitations in Section 1321.04
(a), such space may occupy all or any part of any required yard or court space.
(d) No such space shall be located closer than fifty feet to any other lot in any "SR" or "R" District, unless wholly within a completely enclosed building or unless enclosed on all sides facing lots in any "SR" or "R" District by a wall or fence not less than six feet in height.