US Sign Code  / New York City
NYC Zoning Resolution · Art. III Ch. 2

Will your storefront sign get a violation?

In New York City, your legal sign size depends on your building's zoning district — and most owners never check. Enter your address. We pull your zoning and flag the risk before you pay for a sign the city makes you take down.

This checks accessory business signs — a sign identifying your own business at your location. Third-party billboards / advertising signs are not covered.
This is the width of your lot along the street. We try to fill it automatically; correct it if it looks wrong.

Why NYC signs get flagged

New York City does not set one sign rule for the whole city. The NYC Zoning Resolution ties your maximum legal sign area to the zoning district your building sits in, and then cuts that allowance sharply the moment your sign is illuminated. A 50-foot-wide storefront in a C1 district can run a 150 sq ft non-illuminated sign — but light it up and the cap collapses to 50 sq ft. Owners who size a bright sign off the non-illuminated number are the ones who get the violation notice.

Unpermitted or oversized signs draw daily accruing penalties and removal orders from the Department of Buildings. This tool reads the same zoning rules the city enforces and tells you where your plan stands before you commit to fabrication.

NYC commercial sign allowance by district

Maximum accessory sign area. "Mult" = multiply by your street frontage in feet; the cap is the hard ceiling.

DistrictNon-illuminatedIlluminatedFlashing/LED
C1 / C2×3, max 150×3, max 50Not allowed
C350 maxNot allowedNot allowed
C4 / C5-4 / C6 / C7×5, max 500×5, max 500×5, max 500
C5-1/2/3/5×3, max 200×3, max 50Not allowed
C6-1A×5, max 500×5, max 500Not allowed
C6-5 / C6-7No size limitNo size limitNo size limit
C8×6, max 750×6, max 750×6, max 750

Source: NYC Zoning Resolution §32-642, §32-643, §32-644, §32-645. Projection across the street line: 18 in (double-faced) / 12 in (single-faced), §32-652.

Questions owners ask

Do I need a permit for a small sign?
A non-illuminated wall sign of 6 sq ft or less generally does not need a DOB permit — but it still has to obey the zoning size and placement rules above.
Who can legally install my sign?
NYC requires a licensed sign hanger to install or remove most commercial signs. Even a perfectly sized sign installed by an unlicensed contractor can trigger violations.
My building is in a historic or special district — does this still apply?
No. Special Purpose Districts (like Times Square) and Landmarks/Historic districts override the standard formulas with their own design review. If your address falls in one, this tool will tell you and route you to a licensed expediter instead of guessing.
Is this an official ruling?
No. This is a first-pass risk filter based on public zoning data and the Zoning Resolution. It is not a permit and not legal advice. Final dimensions are confirmed by a NYC-registered sign professional.