Contractors

UPDATE: New License Application Requirement 
New License Application Service Notice - Starting September 7, 2021, all new license applications are required to be submitted online at www.nyc.gov/dobnow. See the New License Application User Guide for step-by-step directions.

The type of work you are seeking to perform will determine which registrations are required with the Department. Some work may require multiple registrations.

  • Home Improvement Contractor License

    *Note: Home Improvement Contractor licenses are issued by the Department of Consumer Affairs. For more information about applying for a license call (212) 487-4060. If you need to renew, change or update your Home Improvement Contractor license, call (212) 487-4104.*

New Buildings

  • 1-, 2-, or 3-Family Home: You must register as a General Contractor
  • All Other New Buildings (excluding 1-, 2-, and 3-family homes): You must obtain a Safety Registration Number with a Construction Endorsement or register as a General Contractor.

Alterations

  • Adding more than 25% to the Floor Area (vertical or horizontal enlargement): You must obtain a Safety Registration Number with a Construction Endorsement or register as a General Contractor
  • Adding 3 or more Stories: You must obtain a Safety Registration Number with a Construction Endorsement or register as a General Contractor
  • Removing more than 50% of the Floor Area: You must obtain a Safety Registration Number with a Demolition Endorsement or register as a General Contractor
  • Removing 1 or more Stories: You must obtain a Safety Registration Number with a Demolition Endorsement or register as a General Contractor
  • Work in a 1-, 2-, 3-, or 4-family Home or Condo/Co-op: You must obtain a Home Improvement Contractor license from the Department of Consumer Affairs
  • All Other Alteration Work (all work not specified above): You must obtain an Insurance Tracking Number (at minimum), register as a General Contractor or obtain a Safety Registration number.

Demolitions

  • Full & Partial Demolition Work: You must obtain a Safety Registration Number with a Demolition Endorsement.

Foundations/Excavation

  • All Excavation / Foundation Work: You must obtain a Safety Registration Number with a Construction Endorsement.

Concrete

  • Placement of 2,000 Yards or More of Concrete: You must obtain a Safety Registration Number with a Concrete Endorsement.

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