The provisions of this Section, inclusive, shall apply to all buildings or other structures within the Upland Subdistrict, except in C2-4 Districts mapped within R6 Districts, where the underlying height and setback regulations shall apply.

In C1-2 Districts mapped within R3-2 Districts, all buildings or other structures shall comply with the height and setback regulations of R4 Districts, except that the maximum perimeter wall height shall be 26 feet, and the street wall location provisions of Section 128-32 (Street Wall Location) shall apply.

The underlying height and setback regulations of C4-2 Districts within the Upland Subdistrict shall not apply. In lieu thereof, the height and setback regulations of this Section, inclusive, shall apply. In R7-3 Districts, all buildings or other structures shall comply with the height and setback regulations of this Section, inclusive.

In the South and North Waterfront Subdistricts, the underlying height and setback regulations of Section 62-34 (Height and Setback Regulations on Waterfront Blocks) shall apply, except that:

(a)        in the South Waterfront Subdistrict, rooftop regulations shall be as modified in Section 128-31 (Rooftop Regulations); and

(b)        in the North Waterfront Subdistrict, developments, enlargements, alterations and changes of use permitted pursuant to Section 128-61 (Special Permit for North Waterfront Sites) shall instead be subject to the Proposed Plans, as set forth in Section 128-61, as approved pursuant to such special permit.

All heights shall be measured from the base plane, except that wherever a minimum or maximum base height is specified for zoning lots with multiple street frontages, such heights shall be determined separately for each street frontage, with each height measured from the final grade of the sidewalk fronting such street wall.