The following regulations shall apply to arcades and publicly accessible open areas existing on June 21, 2016, located within the Water Street Subdistrict as shown on Map 8 in Appendix A of this Chapter except for the plaza that was the subject of special permit application CP-20518, approved by the City Planning Commission on November 27, 1968.

For the purposes of this Section, inclusive, “arcade” shall refer to an arcade or through block arcade provided in accordance with the provisions of Sections 12-10 (DEFINITIONS) and 37-80 (ARCADES), or any other arcade that generated a floor area bonus as evidenced by plans approved by the Department of Buildings.

A horizontal enlargement permitted by Sections 91-83 (Retail Uses Within Existing Arcades), inclusive, or 91-841 (Authorization for retail uses within existing arcades) shall not be included as floor area, and such additional area shall not result in a reduction of the permitted floor area.

No arcade may be eliminated or reduced in size pursuant to paragraphs (a) or (d) of Section 33-124 (Existing public amenities for which floor area bonuses have been received). In lieu thereof the following provisions shall apply: Sections 91-83, 91-841 and, as applicable, Section 91-85 (Special Permit for Enlargements of 7,500 Square Feet or Greater).

For any zoning lot that was the subject of application C810325ZSM, C810506ZSM or C841070ZSM, a certification pursuant to Section 91-83 or an authorization pursuant to Section 91-841 shall not result in a departure from the findings and conditions specified in the applicable special permit, and such certification or authorization shall not require modification of the applicable special permit unless such a modification is required pursuant to a related restrictive declaration. For the zoning lot that was the subject of application C810325ZSM, the existing through block arcade shall not be eliminated, but may be modified in size and configuration provided that the standards for through block arcades set forth in Section 12-10 are met.

Public events may take place within a publicly accessible open area or arcade pursuant to the provisions of Section 91-81 (Events Within Public Access Areas). Publicly accessible tables, chairs, shade umbrellas and heating lamps may be located within a publicly accessible open area or arcade pursuant to the provisions of Section 91-82 (Amenities Within Public Access Areas). An outdoor cafe may be located within an arcade pursuant to Section 91-821 (Certification for outdoor cafes within arcades).

A horizontal enlargement of the ground floor and second floor levels may be permitted within arcades, or portions thereof, located within Area A in Map 9 of Appendix A of this Chapter pursuant to the provisions of Section 91-83, and within Area B pursuant to the provisions of Section 91-841. In addition, a horizontal enlargement of 7,500 square feet or greater shall also require a special permit pursuant to Section 91-85. For the purposes of calculating the total area of the horizontal enlargement that is subject to the special permit, the aggregate area of the horizontal enlargement permitted by prior certifications pursuant to Sections 91-83 and 91-837 (Subsequent design changes) and prior authorizations pursuant to Section 91-841 shall be included in such calculation, except the area of an indoor public space shall be excluded from such calculation. In no event shall an enlargement be permitted within arcades, or portions thereof, located within Area C on Map 9 in Appendix A of this Chapter.