Within Subareas A, B and C, the underlying height and setback regulations shall be modified as follows:

(a)        Subareas A and B1

(1)        Base heights and maximum building heights

The table below sets forth the minimum and maximum base height, the maximum transition height, the maximum height of a building or other structure, and the maximum number of stories for buildings in Subareas A and B1. The maximum building height set forth in the table shall only be permitted in locations where the maximum street wall width of a building above the transition height, or, where applicable, the maximum base height, does not exceed 100 feet. At least 60 feet of separation shall exist between any portions of buildings located above such maximum transition height, or maximum base height, as applicable.

A setback is required for all portions of buildings or other structures that exceed the maximum base height specified for the Subarea, and shall be provided in accordance with paragraph (a)(2) of this Section.

Maximum Base Heights and Maximum Building Heights for Subareas A and B1

(2)        Required setbacks

At a height not lower than the minimum base height, or higher than the maximum base height specified for the Subarea in the table in paragraph (a)(1) of this Section, a setback shall be provided in accordance with the provisions of Section 23-433 (Standard setback regulations).

(b)        Subarea B2

Within Subarea B2, the maximum height of a building or other structure shall not exceed 65 feet.

(c)        Subareas B3 through B5 and Subarea C

In Subareas B3 through B5 and Subarea C the height and setback regulations applicable to an R6B District set forth in Section 23-43, inclusive, shall apply. For the purposes of applying the setback regulations of Section 23-433, all surrounding streets shall be considered wide streets.