N.Y.C. Admin. Code § 3-119.1: § 3-119.1 Citywide census of vacant properties.

a. The mayor, or an agency designated by the mayor, shall analyze data provided under subdivisions b and c of this section to provide an estimate of the number of vacant residential buildings and vacant lots located in areas zoned to permit residential use. Such analysis need not be conducted with regard to vacant buildings or vacant lots located in coastal flood zones designated by the federal emergency management agency or other coastal flood zones designated or recognized by the city. The first such analysis shall be initiated no later than 90 days after the effective date of the local law that added this section and shall be completed within three years thereafter. A new vacancy analysis shall be conducted every five years thereafter.

b. The departments of housing preservation and development, environmental protection, buildings and sanitation and the fire department, and any other agency upon request of the mayor or such designated agency, shall provide to the mayor or such designated agency such records as may be provided lawfully concerning the physical condition of and services provided to any building or parcel of land within the city in order to aid the mayor or such designated agency in determining whether any building or lot is vacant.

c. The mayor or such designated agency shall compile a list of the potentially vacant buildings and potentially vacant lots disclosed as a result of such analysis. Sources of information relating to buildings and lots shall include, but need not be limited to, records of the department of housing preservation and development, the department of finance and the department of buildings, and each agency shall provide to the mayor or such designated agency such information as shall be requested and that may be provided lawfully.

(L.L. 2018/029, 1/8/2018, eff. 7/7/2018)