N.Y. GCT Law § 83-A

§ 83-a. Exemption of lots shown on approved subdivision plats. 1.\nNotwithstanding any inconsistent provision of this chapter or of any\ngeneral, special or local law, the provisions of a zoning ordinance or\nlocal law hereafter adopted, or of a change or amendment thereto, which\nprovisions:\n (a) establish or increase lot areas or lot dimensions which are in\nexcess of the areas or dimensions of the lots shown and delineated on a\nresidential subdivision plat which has been duly approved by the\nplanning board, or other board or officer vested with authority to\napprove subdivision plats, if any, of the city in which the land shown\non said plat is situate and duly filed in the office of the recording\nofficer of the county in which the land shown on said subdivision plat\nis situate; or\n (b) establish or increase side, rear or front yard or set back\nrequirements in excess of those applicable to lots under the provision\nof the zoning ordinance or local law, if any, in force and effect at the\ntime of the filing of the said duly approved residential subdivision\nplat or first section thereof;\n shall not, for the period of time prescribed in subdivision two of\nthis section, be applicable to or in any way affect any of the lots\nshown and delineated on such subdivision plat.\n 2. If at the time of the filing of the subdivision plat or first\nsection thereof referred to in subdivision one of this section there was\nin the city:\n (a) both a zoning ordinance or local law and a planning board vested\nwith authority to approve subdivision plats, then the exemption provided\nfor in subdivision one of this section shall apply for a period of three\nyears after the filing of the approved subdivision plat or first section\nthereof; or\n (b) a zoning ordinance or local law in effect in the city but there\nwas no planning board in said city vested with authority to approve\nsubdivision plats, then the exemption provided for in subdivision one of\nthis section shall apply for a period of two years after the filing of\nthe approved subdivision plat or first section thereof; or\n (c) no zoning ordinance or local law in the city but there was a\nplanning board vested with authority to approve subdivision plats, then\nthe exemption provided for in subdivision one of this section shall\napply for a period of two years after the filing of the approved\nsubdivision plat or first section thereof; or\n (d) no zoning ordinance or local law in the city and no planning board\nvested with authority to approve subdivision plats, then the exemption\nprovided for in subdivision one of this section shall apply for a period\nof one year after the filing of the subdivision plat or first section\nthereof.\n