In the Residential Preservation Area, the parking requirements of the underlying districts shall be inapplicable. In lieu thereof, the accessory off-street parking regulations of R8X Districts shall apply to developments or enlargements.

If a commercial development is constructed on a vacant Commercial Infill Site previously occupied by a commercial building on or before July 1, 1981, or an existing commercial building located on a Commercial Infill Site is replaced by a commercial development, the number of accessory off-street parking spaces provided by the commercial development shall be equal to or greater than the number of accessory off-street parking spaces provided by the building it replaced.