NYC rules · Ask Grok
SidewalkSnitch / Regulations / Construction / DOB-SGN-001
Illegal Sign or Billboard on Building Facade
Construction · NYC DOB · NYC Building Code Ch. 32; 1 RCNY §101-14
Illegal Sign or Billboard on Building Facade is enforced by NYC DOB under NYC Building Code Ch. 32; 1 RCNY §101-14. Severity default: Medium.
The rule
Signs and billboards require DOB sign permits. Oversized advertising wraps, new signage without permit numbers, or illuminated signs installed without approval are DOB violations.
What to photograph
- large new billboard or building wrap with no DOB permit posted
- illuminated sign installed on facade without visible permit
- oversized advertising banner covering windows without approval
How to file a complaint
- Photograph the site, permit signage (or absence), and hazard.
- Capture job number from shed permit if posted.
- File at 311 under Construction, Scaffold Safety, or General Construction.
- Mark whether pedestrians are forced into traffic.
Official channel: portal.311.nyc.gov or dial 311. Agency: NYC DOB.
Penalties & fines
DOB violations carry civil penalties from hundreds to tens of thousands of dollars; imminent hazards can trigger Stop Work Orders.
What happens after you file
DOB inspectors respond to safety complaints. Missing permits or after-hours work can result in immediate enforcement and work stoppage.
This rule is in our public reference corpus for SEO and training. In-app classification is not enabled yet — file via 311 using the steps above.
Related guides
FAQ
Can I file anonymously?
311 requires contact information for follow-up. Your identity is not shared with the violator. SidewalkSnitch requires phone verification for filings but does not auto-submit to 311.
Does SidewalkSnitch submit this to 311 automatically?
This rule category is reference-only in SidewalkSnitch today. File directly at 311.nyc.gov or call 311.