DOB NYC Construction Code §28-105.1 Active
Business Sign Permit Requirements
Signs over 6 square feet, any illuminated sign, and any projecting or roof sign require a DOB permit before installation. Signs must be filed through DOB NOW: Build. Signs in NYC Landmarks districts also require LPC (Landmarks Preservation Commission) approval — even if they would otherwise be exempt from DOB permitting.
6
Sq ft — threshold below which permits not required (non-illuminated)
$5,000
Max fine for unpermitted sign
$10,000
Max LPC landmark violation fine
What Requires a Permit vs. What Does Not
Permit Required
- Any illuminated sign — LED, neon, backlit, or otherwise lit
- Signs larger than 6 square feet
- Projecting signs — extending beyond the building face
- Roof signs
- Any sign requiring a structural attachment or electrical connection
Generally Exempt
- Non-illuminated signs 6 sq ft or smaller
- Signs painted directly on a masonry wall
- Temporary construction signs
- Window decals under 6 sq ft
Landmarks district exception: If your building is in a NYC Landmarks district, the LPC must approve ANY exterior change — including signs that would otherwise be permit-exempt. Check the LPC website before touching any exterior element.
Fine Schedule
| Violation | Fine |
|---|---|
| Unpermitted illuminated or projecting sign | $800–$5,000 + stop-work order |
| LPC violation in a landmark district | $500–$10,000 |
| Prices not posted where required (DCA rule) | $250–$1,000 |
How to Get a Sign Permit
- 1Check if your building is in a Landmarks district. Search at nyc.gov/lpc or call LPC before anything else. Landmarks review can take weeks.
- 2File in DOB NOW: Build. Submit a Sign (SG) permit application. If the sign is attached to a structure (not directly to the wall), an Alteration permit for the structure may also be required.
- 3If the sign is illuminated and extends beyond the building line, an annual illuminated sign permit is also required and must be renewed each year.
- 4For electrical connections, a licensed electrician must file a separate electrical work permit through DOB NOW: Build.
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