The rule
Most work needs a permit.
DOB states that “most construction in New York City requires approval and permits.” Skipping the permit is how most work-without-a-permit violations start, and those can block a sale, a refinance or a Certificate of Occupancy.
No permit needed
Work that doesn’t need a permit.
- Painting
- Plastering
- Installing new cabinets (the contractor needs a DCWP Home Improvement Contractor license)
- Plumbing fixture replacement
- Resurfacing floors (the contractor needs a DCWP Home Improvement Contractor license)
- Non-structural roof repair
DOB also recognizes exceptions for ordinary plumbing work, minor alterations and ordinary repairs, and certain service equipment. Even when no permit is needed, the work still has to comply with all other laws and rules DOB enforces. A Professional Engineer or Registered Architect can confirm whether your project qualifies.
Who does the work
Licensing and emergency work.
- Ordinary plumbing maintenance and repair, including allowable replacement or relocation of plumbing and gas piping, must be performed by a Licensed Master Plumber.
- Licensed contractors may start emergency work before a permit is issued, but must file an Emergency Work Notification with DOB within two business days after the work is completed.
If work has already been done without a permit, the next step is usually legalization. Our guide to work-without-a-permit violations explains how that works.
Not sure if your project needs a permit? Call us before you start.
Call (929) 367-0962Questions
Frequently asked.
Do I need a permit to renovate a kitchen?
It depends on the scope. Replacing cabinets or fixtures alone is on DOB’s no-permit list, but moving plumbing, gas or walls generally is not. Confirm the scope with a licensed professional before you start.
Who can apply for a permit?
Permit applications generally go through a Professional Engineer or Registered Architect, and licensed trades handle plumbing and electrical work.
What if I already did the work?
Legalization is usually required. The work is documented, filed and inspected, and any violation is then closed out.
Sources
Official sources.
General information about New York City procedures, last reviewed November 2026. Amounts and rules change and every property is different, so this isn’t legal advice. Call us about your specific situation.