C6-3D C6-4X

In the districts indicated, any building or other structure, or portions thereof, which in the aggregate occupies not more than 40 percent of the lot area of a zoning lot or, for zoning lots of less than 20,000 square feet, the percentage set forth in the table in Section 23-65 (Tower Regulations), above a height of 85 feet above the base plane, is hereinafter referred to as a tower. Dormers permitted within a required setback area pursuant to Section 23-623 (Permitted obstructions in certain districts) shall not be included in tower coverage. Such tower may exceed a height limit of 85 feet above the base plane provided the base of such tower complies with the applicable provisions of Section 35-651 (Street wall location) and the setback provisions of Section 35-652 (Maximum height of buildings and setback regulations), and provided that the tower portion complies with the provisions of paragraphs (a), (b) and (c) of Section 23-663 (Tower regulations).