The provisions of this Section shall apply to existing required or permitted accessory off-street parking spaces, public parking lots and public parking garages, established prior to May 8, 2013, in the Manhattan Core, as applicable, and to existing buildings developed without the provision of parking.

(a)        Existing parking facilities

Existing required or permitted accessory off-street parking spaces, public parking lots and public parking garages, established prior to May 8, 2013, shall continue to be subject to the applicable zoning district regulations in effect prior to May 8, 2013, except that:

(1)        any reduction or elimination of existing accessory off-street parking spaces that were required under the applicable provisions in effect prior to April 29, 1982, or for public or publicly assisted housing under the applicable provisions in effect prior to May 8, 2013, shall only be allowed by authorization of the City Planning Commission pursuant to Section 13-443 (Reduction in the number of required existing parking spaces);

(2)        enlargements, extensions or any increase in the number of off-street parking spaces within such off-street parking facilities shall only be permitted by special permit by the Commission pursuant to the applicable provisions of Section 13-45 (Special Permits for Additional Parking Spaces);

(3)        conversions shall be permitted to retain all spaces in existing parking facilities. Additional accessory off-street parking spaces shall only be permitted by special permit by the Commission, pursuant to the applicable special permit provisions of Section 13-45; and

(4)        an accessory off-street parking facility in possession of a license issued by the Department of Consumer Affairs, pursuant to Section 20-321 of the New York City Administrative Code, to maintain, operate or conduct a garage or parking lot (as defined therein) prior to January 1, 2012, may make accessory parking spaces available for public use in accordance with the provisions of Section 13-21 (Public Use and Off-site Parking), provided that a copy of such license is filed with the Department of Buildings. However, any increase in the number of spaces in such a facility shall only be permitted by special permit by the Commission, pursuant to the applicable provisions of Section 13-45.

(b)        Existing buildings developed without parking

Within the Manhattan Core, existing buildings developed without the provision of parking may add up to 15 accessory off-street parking spaces only where the City Planning Commission authorizes such additional spaces pursuant to the provisions of Section 13-442 (Limited increase in parking spaces for existing buildings without parking).