N.Y. General City Law § 35-a: Limitation of time for revocation of permit

§ 35-a. Limitation of time for revocation of permit. An action or

proceeding to revoke a building permit on the ground that the building

erected pursuant thereto stands wholly or partly within the bed of any

street or highway shown on the official map or plan of a city must be

commenced within fifteen years from the time of the issuance of such

permit; but if at the time this act takes effect more than fourteen

years have elapsed since the time of the issuance of the permit, an

action or proceeding to revoke the permit on such ground must be

commenced within one year from the time this act takes effect. If no

action or proceeding is commenced within the time limited, the permit

shall be deemed as valid as if it had been issued pursuant to the

provisions of section thirty-five of this chapter.