The following use allowances around easement volumes shall apply in applicable districts.

(a)        Special use allowances in Residence Districts

In all Residence Districts, uses listed in Use Group 6A and 6C shall be permitted within a distance of 30 feet from the outermost edge of the easement volume:

(1)        at the ground floor level of a building on a zoning lots with an easement volume serving an at- or below-grade mass transit station, or

(2)        at the two lowest stories of a building on a zoning lot with an easement volume serving an above-grade mass transit station.

Such uses may be permitted so long as that in buildings that include residential uses, such uses are located in a portion of the building that has separate access to the outside with no opening of any kind to the residential portion of the building, and that such uses are not located directly over any story containing dwelling units.

(b)        Special regulations for commercial use location in mixed buildings in Commercial Districts

In C1 or C2 Districts, the underlying provisions of Section 32-422 (Location of floors occupied by commercial uses) shall be modified for mixed buildings that are developed or enlarged with an easement volume serving an above-grade mass transit station, to allow all permitted commercial uses on the lowest two stories.