On the premises of every building erected, or altered after the date of the adoption of this chapter which is devoted to retail trade, retail and wholesale food markets, warehouses, supply houses, wholesale or manufacturing trade, hotels, hospitals, laundries, dry cleaning establishments or other buildings where large amounts of goods are received or shipped, there shall be provided loading and unloading space as follows:
A. Buildings of five thousand square feet of floor area, one off-street loading space, plus one additional off-street loading and unloading space for each additional three thousand square feet of floor area;
B. Each loading space shall be not less than ten feet in width, twenty-five feet in length and fifteen feet in height. (Ord. 1437-93 § 3(part), 1993).