In Subdistrict A, the Chairperson of the City Planning Commission shall allow, by certification, a floor area bonus where public realm improvements, pursuant to Section 145-411 (Certification for public realm improvements in Subdistrict A), are provided on a single zoning lot or on two or more zoning lots that are contiguous or would be contiguous but for their separation by a street or street intersection, and:

1. has or will have an area of at least 1.5 acres; and
2. has or will be developed or enlarged as a unit under single fee ownership or alternate ownership arrangements as set forth in the definition of zoning lot. 

In conjunction with such floor area bonus, the Commission may authorize the modification of bulk regulations, other than floor area ratio, pursuant to Section 145-412 (Authorization for additional modifications in Subdistrict A).