If no work is planned, building owners must hire a Registered Architect or Licensed Engineer to file an Alt-1 "No Work" application before a new or amended C of O will be issued.
For additional information on a specific property, visit the online Buildings Information System database at the Buildings Information System (BISWeb) link, below.
See Agency Contacts by Borough and Unit for the DOB office serving your area
For further assistance, please call 311 and ask for: Certificate of Occupancy.
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Use the Requirements Questionnaire to get a customized list of requirements for starting or operating your business in New York City.