The maximum width of lobbies, entrances and exits to accessory off-street parking facilities, and entryways to subway stations shall be as set forth in this Section.

(a)        Ground floor lobbies

Lobbies accessing uses not permitted on the ground floor level shall be permitted, provided that the width of such lobbies, in total, does not exceed 25 percent of the street wall width of the building or more than 20 linear feet of street wall frontage on a wide street or 30 linear feet on a narrow street, whichever is less. However, the width of such lobbies need not be less than 10 feet.

(b)        Entrances and exits to accessory parking facilities

Entrances and exits to accessory off-street parking facilities, where permitted on the ground floor level, or portion thereof, shall not exceed a street wall width equal to the sum of five feet plus the maximum curb cut width for the applicable district. Where no specified maximum curb cut width is set forth for the district, the curb cut regulations for buildings containing residences in R6 through R8 Districts with a letter suffix, found in paragraph (e) of Section 25-631 (Location and width of curb cuts in certain districts), shall be applied.

(c)        Entryways to subway stations

Entryways to subway stations may be provided on the ground floor level of a building without restriction in street wall width.