New York City Dept. of Buildings
Contact the Department of Buildings [DOB] to learn about issues affecting your property. To look up your property's Certificate of Occupancy status, visit the DOB website listed above. At the website you can find information about Certificate of Occupancy requirements, how to remove violations, and when you need a permit and how to get one. Log on to http://www.nyc.gov/html/dob/html/faq.html for a direct link to Frequently Asked Questions or to http://www.nyc.gov/html/dob/pdf/infoviol.pdf for a direct link to Resolving Violations. The DOB may also be reached by dialing 311.
New York, NY 10007-1801