N.Y. Pub. Auth. Law § 2799-KKKK
Notwithstanding any other provision of this title, or any other law to the contrary, on or after the effective date of this section, no further development or construction for other than park purposes shall be permitted on any real property which is identified as open space areas in the general development plan as amended May tenth, nineteen hundred ninety, and as subsequently amended, and approved by the board of estimate of the city of New York on August seventeenth, nineteen hundred ninety and referred to in the lease defined in subdivision six of section twenty-seven hundred ninety-nine- bbbb of this title, and on such real property shall remain open space areas for the duration of the lease unless such development or construction includes the reconstruction, restoration, rehabilitation or preservation of the historic landmarks located in such open space areas and furthers the use of the areas surrounding the historic landmarks as open space areas. Open space areas, as used in this section shall be limited to Lighthouse Park, Octagon Park, Blackwell Park, and South Point Park.
N.Y. Pub. Auth. Law § 2799-KKKK