For all accessory off-street parking facilities and automobile rental establishments, the minimum and maximum size requirements for the parking zone for such parking facilities shall be set forth in this Section. The access zone of such parking facilities shall not have a minimum or maximum gross surface area.

For the purpose of calculating surface area in attended parking facilities with parking lift systems, the lifted tray upon which a vehicle is stored shall constitute surface area.

(a)        Attended parking facilities

(1)        For attended parking facilities without parking lift systems, the minimum gross surface area, in square feet, of the parking zone shall be 180 times the number of off-street parking spaces provided, and the maximum gross surface area, in square feet, of the parking zone shall not exceed 200 times the number of off-street parking spaces provided.

(2)        For attended parking facilities with parking lift systems, the minimum and maximum surface area of the portion of the parking zone allocated to non-elevated parking spaces shall be calculated at the rate set forth in paragraph (a)(1) of this Section; and the surface area, in square feet, of the portion of the parking zone allocated to elevated parking spaces shall be 153 times the number of elevated spaces able to be provided on lifted trays.

(b)        Automated parking facilities

No minimum or maximum surface area requirement shall be required in off-street parking facilities that the Commissioner of Buildings determines to be automated parking facilities.

(c)        Automobile rental establishments

The maximum gross surface area, in square feet, of the parking zone of an automobile rental establishment, shall be established at the rate set forth in paragraph (a) of this Section.

(d)        Self-park facilities

The gross surface area, in square feet, of the parking zone of a self-parking accessory off-street parking facility shall be a minimum of 300 times the number of off-street parking spaces provided, and a maximum of 350 times the number of off-street parking spaces provided. However, an area of less than 300 square feet, but in no event less than 200 square feet, may be considered as one space, where the layout and design of the parking area are adequate to permit convenient access and maneuvering in accordance with regulations promulgated by the Commissioner of Buildings.

Such minimum and maximum parking zone requirements of this Section may be modified by the Chairperson of the City Planning Commission pursuant to the certification set forth in Section 13-431 (Reduction of minimum facility size).