For a zoning lot occupying an entire block located in an R9 or an R10 District, or in commercial districts mapped within, or with a residential equivalent of an R9 or an R10 District, partially within the Special Park Improvement District, and containing a non-profit or voluntary hospital and related facilities, as listed in Use Group III(B), the City Planning Commission may, by special permit, allow the modifications set forth in paragraph (a) of this Section, provided the conditions set forth in paragraph (b) and findings set forth in paragraph (c) are met.

1. The Commission may allow an increase in the maximum community facility floor area ratio by up to a maximum of 20 percent. A floor area bonus pursuant to this Section may be used in combination with a floor area bonus permitted pursuant to Section 66-51 (Additional Floor Area for Mass Transit Station Improvements), and the combination of such bonuses may exceed 20 percent of the maximum floor area ratio otherwise permitted.
   
   In connection with such floor area bonus, the Commission may allow modifications to applicable bulk regulations.
2. In order to grant a special permit pursuant to this Section, the following conditions shall be met:
   1. a minimum floor area of 95 percent of any development or enlargement on such zoning lot will be allocated to such hospital use;
   2. the bonus floor area allowed pursuant to this Section shall be exclusively allocated to such hospital use; and
   3. the amount of floor area to be located on the portion of such zoning lot within the Special Park Improvement District shall not exceed a floor area ratio of 10.0.
3. In order to grant a special permit pursuant to this Section, the Commission shall find that:
   1. the public benefit derived from such proposed hospital development or enlargement merits the additional floor area being granted pursuant to this special permit;
   2. where bulk modifications are utilized, such modifications will provide a more satisfactory physical relationship to existing hospital buildings or other structures on the zoning lot, and facilitate a more efficient and integrated site plan; and
   3. where bulk modifications are utilized, the distribution of bulk on the zoning lot will result in a satisfactory site plan and urban design relationships of buildings or other structures to adjacent streets and the surrounding area.

The Commission may prescribe appropriate conditions and safeguards to minimize adverse effects on the character of the surrounding area.