The requirements of Section 81-43 (Street Wall Continuity Along Designated Streets) shall be applicable within the Subdistrict, except as modified in this Section.

Buildings with frontage on Park, Lexington, Madison and Vanderbilt Avenues, or Depew Place in the Grand Central Core Area, as shown on Map 2 (East Midtown Subdistrict and Subareas) in Appendix A of this Chapter, shall have a street wall within 10 feet of the street line of such streets. On 42nd Street, the street wall shall be at the street line. The width of the required street wall shall be at least 80 percent of the length of the front lot line.

The minimum height of such street walls without any setback shall be 120 feet above curb level or the height of the building, whichever is less, and the maximum height shall not exceed 150 feet above curb level. Where a zoning lot is bounded by the intersection of Park Avenue, Lexington Avenue, Madison Avenue, Vanderbilt Avenue, 42nd Street or Depew Place and any other street, these street wall height regulations shall apply along the full length of the zoning lot along the other street or to a distance of 125 feet from the intersection, whichever is less.

However, for developments or, where permitted, enlargements on qualifying sites within an area bounded by East 43rd Street, Second Avenue, East 42nd Street and a line 200 feet east of Third Avenue, such street wall location requirements shall not apply to the portion of the frontage where an open publicly accessible space is provided in accordance with paragraph (b) of Section 81-681 (Mandatory requirements for qualifying sites).

Beyond 125 feet of the intersection, the maximum height of the street wall above curb level shall not exceed 120 feet. For such buildings, the provisions of Section 81-262 (Maximum height of front wall at the street line) shall not be applicable.

However, the ten-foot setback requirement of paragraph (a) of Section 81-263 (Standard setback requirements) shall apply only to those portions of the building above 120 feet.