Except as modified by the express provisions of the Special Grand Concourse Preservation District, the regulations of the underlying zoning districts shall remain in effect.

For transit-adjacent sites, as defined in Section 66-11 (Definitions), in the event of a conflict between the provisions of this Chapter and the provisions of Article VI, Chapter 6 (Special Regulations Applying Around Mass Transit Stations), the provisions of Article VI, Chapter 6 shall control.