The requirements of Sections 23-70 (MINIMUM REQUIRED DISTANCE BETWEEN TWO OR MORE BUILDINGS ON A SINGLE ZONING LOT) and 23-82 (Building Walls Regulated by Minimum Spacing Requirements) shall not apply, provided that if two or more buildings or portions of buildings are detached from one another at any level, such buildings, or such detached portions of buildings, shall at no point be less than eight feet apart at or below a height of 180 feet, and shall at no point be less than 60 feet apart above a height of 180 feet.