(1) Off-street Loading in All Districts except "RC-4," "C-4" and "C-5" : In every district except the "RC-4" Residential, "C-4" Commercial and "C-5" Commercial Districts, every building erected after the effective date of this ordinance, on a property abutting two or more streets, which is arranged, intended, or designed to be used for office purposes, hospital, institution, or for a hotel, which has an aggregate gross floor area of one hundred thousand or more square feet arranged, intended or designed for such use, shall have loading spaces in accordance with the following table:

For each additional 350,000 sq. ft. over 1,300,000, one additional space. Such loading spaces which are located in the open-air shall not be considered as part of occupied area of the lot.

(2) Off-Street Loading in "RC" Residential Districts. In every "RC" Residential District except the "RC-4" Residential District, every building erected after the effective date of this ordinance, on a property abutting two or more streets, which is arranged, intended, or designed to be used or occupied for any commercial use permitted in these districts and which has an aggregate gross floor area of twenty thousand or more square feet, shall have loading spaces in accordance with the following table; provided, that these provisions shall only be applicable to the gross floor area of said building which is used for commercial purposes and listed in each "RC" Residential District:

For each additional 90,000 sq. ft. over 320,000, one additional space. Such loading spaces which are located in the open-air shall not be considered as part of the occupied area of the lot.^[237]

(3) Off-Street Loading in Commercial Districts: In every Commercial District except the "C-4" Commercial and "C-5" Commercial Districts, every building erected after the effective date of this ordinance, on a property abutting two or more streets, which is arranged, intended, or designed to be used or occupied for uses permitted in these districts, except residential or institutional uses, and which has an aggregate gross floor area of twenty thousand or more square feet arranged, intended or designed for such use, shall have loading spaces in accordance with the following table:

For each additional 90,000 sq. ft. over 320,000, one additional space. Such loading spaces which are located in the open-air shall not be considered as part of the occupied area of the lot.

(4) Off-street Loading in Industrial Districts: In every Industrial District, every building erected after the effective date of this ordinance, on a property abutting two or more streets, which is arranged, intended, or designed to be used or occupied for the uses permitted by right or by the Zoning Board of Adjustment Certificate in the district, and which has an aggregate gross floor area of 10,000 or more square feet arranged, intended, or designed for such use, shall have loading space in accordance with the following table:

For each additional 50,000 sq. ft. over 100,000, one additional space. Such loading spaces which are located in the open-air shall not be considered as part of the occupied area of the lot.

(5) Where such loading spaces do not adjoin the street, convenient access to such space shall be provided. Such access shall be at least 12 feet in width.

(6) Access driveways across footways of property abutting on public highways shall be subject to the approval of the Department of Streets. The requirements of this section shall not apply to locations for which driveway approaches are disapproved by the Department of Streets.

(7) The size of an off-street loading space shall be as defined in the individual districts, provided, that when the individual districts do not define the size of an off-street loading space, it shall be as defined in § 14-102(48) of this Title.