The permitted obstruction provisions of paragraph (a)(4) of Section 62-341 (Developments on land and platforms) shall be modified as follows:

(a)        the dormer provisions of paragraph (a)(4)(i) of Section 62-341 shall be modified pursuant to the provisions of paragraph (c)(1) of Section 127-233 (Base heights and setback regulations);

(b)        the penthouse regulations of paragraph (a)(4)(ii) of Section 62-341 shall not apply; and

(c)        the maximum height of any permitted obstructions shall be determined in accordance with the provisions of Article VI, Chapter 1 (Special Regulations Applying Around Major Airports), except where modified by certification of the Chairperson of the City Planning Commission pursuant to Section 127-236 (Certification to modify maximum height of building or other structure).