N.Y.C. Admin. Code § 28-215.4: § 28-215.4 Violations of protective measures during construction or demolition.

During the construction or demolition of a structure, the commissioner shall notify the owner of the structure affected of any failure to comply with any of the provisions of this code that concern the protection of life, safety and property during construction or demolition. Unless the owner so notified proceeds immediately to comply with the orders of the commissioner, the commissioner shall have full power to correct the violation. All expenses incurred therefore shall become a lien on the property pursuant to section 28-112.9.