In addition to the applicable requirements set forth in Section 93-562 (Street wall regulations for certain streets), the provisions of this Section shall apply to buildings on Site 1.

(a)        Building base

(1)        Facing West 33rd Street

The street wall of the building facing West 33rd Street may rise without setback to a maximum base height of 120 feet before a setback is required. However, no setbacks shall be required within 150 feet of Twelfth Avenue.

(2)        Facing the West 32nd Street Extension

The provisions of this paragraph, (a)(2), shall apply to street walls facing the West 32nd Street Extension, the Western Open Space and the Midblock Connection within 60 feet of the West 32nd Street Extension. Such street walls shall rise without setback to a minimum base height of 60 feet and a maximum base height of 90 feet.

(3)        Facing the Western Open Space

The provisions of this paragraph, (a)(3), shall apply to street walls facing the Western Open Space beyond 60 feet of its intersection with the West 32nd Street Extension. The street wall of the building may rise without setback to a maximum base height of 90 feet before a setback is required. However, no setbacks shall be required within 150 feet of Twelfth Avenue.

(b)        Transition height

All portions of a building that exceed the applicable maximum base height specified in paragraph (a) of this Section shall be set back in accordance with the provisions of this paragraph (b), except that where towers are provided directly above a portion of the transition height, such a portion of transition height located directly below a tower shall provide setbacks in accordance with the tower provisions of paragraph (c) of this Section.

Portions of a transition height facing West 33rd Street shall be set back from the West 33rd Street street line a minimum of 20 feet. Portions of a transition height facing the Western Open Space that exceed the maximum base height shall be set back from the street wall of a building facing the Western Open Space a minimum of 30 feet. However, in both cases, no such setback shall be required within 150 feet of Twelfth Avenue.

Above the maximum base height, a street wall may rise to a maximum transition height equal to one-half the height of the street wall of the building base facing the Western Open Space. Such a transition height shall not exceed a maximum height of 135 feet.

All portions of a building that exceed the maximum transition height shall comply with the tower provisions of paragraph (c) of this Section.

(c)        Towers

All stories of a building located partially or wholly above the maximum transition height shall be considered a “tower” and shall comply with the provisions of this paragraph (c).

(1)        Required setbacks

All towers, or portions of a transition height located beneath a tower, shall be set back at least 15 feet from the street line of West 33rd Street and from the street walls of the building facing the West 32nd Street Extension, except that the depth of such setback distance may include the depth of any permitted recesses. However, no setbacks shall be required within 150 feet of Twelfth Avenue, along the Western Open Space or along the Midblock Connection to allow portions of towers that comply with the provisions of paragraphs (c)(2) and (c)(3) of this Section to rise without setback.

(2)        Maximum floor plate

If more than one tower is provided on Site 1, the aggregate gross area of any such tower stories, measured at any height, shall not exceed 25,000 square feet.

(3)        Maximum length and height

The outermost walls of all stories of a tower, when viewed from above, shall be inscribed within a rectangle where the east-west dimension shall not exceed a length of 110 feet and the north-south dimension shall not exceed a length of 160 feet. Where more than one tower is located on Site 1, each tower shall comply independently with such maximum dimensions.

If more than one tower is located on Site 1, the height of the easternmost tower shall be a minimum of 100 feet greater than the height of the westernmost tower.

All towers that exceed a height of 350 feet shall provide articulation in accordance with Section 93-569 (Tower top articulation).