In all districts in the Transit Zone, the City Planning Commission may permit a waiver of, or a reduction in, the number of required accessory off-street parking spaces for dwelling units in a development or enlargement that includes at least 20 percent of all dwelling units as income-restricted housing units as defined in Section 12-10 (DEFINITIONS), provided the Commission finds that such waiver or reduction:

1. will facilitate such development or enlargement. Such finding shall be made upon consultation with the Department of Housing Preservation and Development;
2. will not cause traffic congestion; and
3. will not have undue adverse effects on residents, businesses or community facilities in the surrounding area, as applicable, including the availability of parking spaces for such uses.

The Commission may impose appropriate conditions and safeguards to minimize adverse effects on the character of the surrounding area.