The maximum floor area ratio permitted on each portion of such zoning lot for the applicable type of building or buildings on such zoning lot shall be determined under the applicable regulations of this Resolution.

Each such floor area ratio shall be multiplied by the percentage of the zoning lot to which such floor area ratio applies. The sum of the products thus obtained shall be the adjusted maximum floor area ratio applicable to such zoning lot.

The floor area resulting from application of the adjusted maximum floor area ratio may be located anywhere on the zoning lot, subject to all other regulations of this Resolution, and provided that the floor area ratio for any portion of the zoning lot within one district shall not exceed the maximum floor area ratio, specified for that district, or the adjusted maximum floor area ratio for the zoning lot, whichever is greater, except that the portion of the zoning lot fronting on and within 100 feet of a wide street and permitting the greater maximum permitted residential floor area ratio may exceed the maximum permitted residential floor area ratio for the portion of the zoning lot by up to 20 percent.

In applying the provisions of this Section, the following conditions shall apply:

1. the floor area bonus permitted for publicly accessible open areas or arcades, under the applicable regulations of this Resolution, shall apply only to such publicly accessible open areas, arcades or portions thereof, as are located in a district in which such bonus is granted; and
2. when a zoning lot contains a sky exposure plane building which does not have a specified maximum floor area ratio, for the purpose of computing the adjusted maximum floor area ratio, the floor area ratio of such zoning lot shall be deemed to be that which can be achieved at the minimum required open space ratio for such zoning lot.