In district C-2 no building, structure, land, or premises shall be used and no building or structure shall be hereafter erected, constructed, reconstructed, moved, or altered except for one or more of the following uses: (For exceptions see Section XIX, “Special Classes,” Section XXII, “Nonconforming Uses,” and Section XXXII, “Powers and Duties of the Board.”)

Commercial buildings shall not exceed 45 feet or three stories in height and may be built on street lines, lot lines, or with joint ownership of common walls across lot lines as is permitted in business district regulations and fire zone ordinances in effect at the time of the passage of this ordinance.