The maximum gross unobstructed surface area, in square feet, of a permitted accessory group parking facility including stalls, aisles, driveways and maneuvering areas shall be as set forth in this Section.

1. Attended parking facilities 
   
   For attended parking facilities without parking lift systems, the maximum gross surface area shall not exceed 200 times the number of accessory off-street parking spaces provided.
   
   For attended parking facilities with parking lift systems, the maximum surface area of the portion of the facility allocated to non-elevated parking spaces shall not exceed 200 times the number of non-elevated spaces provided and the portion allocated to elevated parking spaces shall be 153 times the number of elevated spaces able to be provided on lifted trays. 
   
   No maximum surface area requirement shall apply to automated parking facilities.  
2. Self-park facilities
   
   For self-parking facilities, the maximum gross surface area shall not exceed 350 times the number of accessory off-street parking spaces provided.

An off-street parking facility in the Long Island City area may provide a gross unobstructed surface area greater than the maximum size permitted by this Section upon certification by the Chairperson of the City Planning Commission to the Commissioner of Buildings that the proposed layout of such parking facility, including, but not limited to, the arrangement of parking spaces, travel aisles and reservoir spaces, where applicable, is sufficient to accommodate the requisite vehicular navigation and turning movements associated with such a facility. To make such a determination, the applicant shall provide the Chairperson with dimensioned plan drawings that depict the proposed vehicular movement through the facility, including any relevant maneuverability or turning radius information.