How many buildings are there in nyc? There are 77,227 buildings with at least 4 residential units in New York City with 1,044,327 residential apartments and of those building there are 18,019 in Manhattan.What is the new york state building code? The official name of the new code is the "Building Code of New York State", based on the international family of codes. The Notice of Adoption will be effective July 3, 2002. Full implementation is required within 180 days after the Notice of Adoption.What is the department of building? Building Department. The building department, in coordination with the planning department, is responsible for administering building permit applications, coordinating with persons wishing to build, renovate or development property within the City of Apalachicola.