N.Y. Town Law § 269
Wherever the regulations made under authority of this article require a greater width or size of yards or courts, or require a lower height of building or less number of stories, or require a greater percentage of lot to be left unoccupied, or impose other higher standards than are required in any other statute or local law, ordinance or regulation, the provisions of the regulations made under authority of this article shall govern. Whenever the provisions of any other statute or local law, ordinance or regulation require a greater width or size of yards or courts, or require a lower height of building or a less number of stories, or require a greater percentage of lot to be left unoccupied, or impose other higher standards, than are required by the regulations made under authority of this article, the provisions of such statute, or local law, ordinance or regulation shall govern.
In towns where the town boards have already adopted a zoning ordinance or local law, pursuant to the provisions of chapter three hundred twenty-two of the laws of nineteen hundred twenty-two, or chapter seven hundred fourteen or chapter seven hundred fifteen of the laws of nineteen hundred twenty-six, such boards shall not be required to adopt a new ordinance or local law, and all actions taken and proceedings had by such town boards and boards of appeal under the provisions of said chapter, are hereby ratified and confirmed.
All necessary expenses incurred by any such board in connection with the adoption and enforcement of the zoning ordinance or local law shall be a town charge.
N.Y. Town Law § 269