Do You Need a Sign Permit? Business Sign Permits Explained

You've picked the sign for your storefront. Before anyone drills into the facade, there's one thing to settle: do you need a sign permit? In the US there's no single national rule. Sign permits are issued locally, by your city or county, and the rules sit in the local sign code and zoning ordinance. Illuminated signs almost always involve a second permit for the electrical work. This guide shows you what to check, who to ask and how to get your paperwork ready. If you're still choosing a construction, start with our overview of business signs and storefront signage.

In short

Most permanent exterior business signs need a sign permit from your local building or planning department, and an illuminated sign usually also needs an electrical permit pulled by a licensed electrician. Size limits, placement and lighting rules come from your city or county sign code and zoning. Check with the department before you order, not after.

Who regulates your sign

Three layers usually apply, and they don't always talk to each other:

  • Zoning and the sign code. Your zoning district decides what kind of sign is allowed at all, how big it can be (often tied to the width of your storefront), how high it can sit and whether it can be lit. Downtown, historic and residential-adjacent districts tend to have tighter rules.
  • The building department. It issues the sign permit and checks the structure: how the sign attaches to the building, wind load on larger signs and anything that projects over the sidewalk.
  • Electrical. A sign that's wired into the building needs an electrical permit, and the connection is made by a licensed electrician to the electrical code your jurisdiction has adopted, usually the National Electrical Code.

On top of that come private rules. Your lease, the landlord's sign criteria for a shopping center, or an HOA or business improvement district can be stricter than the city. Get the landlord's written sign approval before you apply. Many building departments ask for it anyway.

An example: New York City

New York shows how specific local rules can get. According to the NYC Department of Buildings, a sign smaller than six square feet and not illuminated doesn't need a permit. Anything larger, or any illuminated sign, does. A sign that needs an electrical connection needs a separate work permit, filed by a licensed electrician. Installations are performed or supervised by a licensed sign hanger, with exemptions for small, light signs. And if an illuminated sign extends beyond the building line, an annual illuminated sign permit may also be required.

Your city will have different numbers. The pattern (a small-sign exemption, a permit for anything bigger or lit, a separate electrical permit) is common, which is why the first call should go to your local building department.

What the code usually looks at, by sign type

Channel letters mounted on the facade are typically counted toward your allowed sign area. Ask whether the city measures the box around the whole word or the outline of each letter, because the difference can be large. See our channel letters for construction details.

Light boxes light the whole face. Some historic districts restrict internally lit cabinets, so ask before you design one. A version where only the lettering glows and the face around it stays dark looks calmer at night. Our light box signs come both ways. If you're still deciding on the construction, our comparison of a light box vs. sign tray vs. channel letters sets out the trade-offs.

Blade signs project over the sidewalk, so expect rules on minimum clearance above the walkway, maximum projection and, in some cities, a separate approval for using the space over the public right-of-way. Check the dimensions on our blade signs page against your local code.

LED neon inside the window with a plug-in adapter is often treated differently from a permanently wired exterior sign. Some cities still regulate window signs, so ask.

How to get your sign permit

  1. Call or visit the building or planning department. Ask which permits your sign needs, whether your property is in a historic district or overlay zone, and whether a design review is required.
  2. Get landlord or HOA approval in writing. Shopping centers often have their own sign criteria that set letter height, colors and illumination.
  3. Prepare the drawings. Typical requirements are a site plan, an elevation showing the sign on the building with dimensions, the materials, the mounting method and how the sign is lit. Larger or projecting signs may need structural details.
  4. Book a licensed electrician. For a wired sign, the electrician pulls the electrical permit and makes the connection. Ask whether your jurisdiction requires a listed sign; our guide to sign certifications such as UL 48 explains what that means.
  5. Install only after the permit is issued, and schedule any inspection the department requires.

Step 3 is where we help. Every quote comes with a dimensioned drawing and a visual of the sign on a photo of your own storefront, which you can use for the application. Production only starts once you've approved the design preview, so you can wait for the permit before you sign off. Signs ship with mounting hardware, and if you don't have an installer, we'll help you find one near you.

Common questions

What happens if I install a sign without a permit?

The city can issue a violation and require you to remove the sign or bring it into compliance. A phone call to the building department before you order costs far less than taking a sign down.

Do I need a permit for a sign inside my business?

A reception logo or an LED neon sign deep inside the space usually isn't regulated as an exterior sign. Signs in or near the window can be, depending on the city.

Does replacing an old sign need a new permit?

Usually, yes. A new sign is reviewed on its own, and adding illumination where there was none often triggers the electrical permit too.

This guide is general information, not legal advice. Your local building department's answer is the one that counts.

Sources

Get drawings your city can work with

Send us your logo and a straight-on photo of your storefront through the free design preview. You'll get a visual on your own building, the dimensions and a firm quote. For budgeting, read what drives the price of a sign, and for installation, our step-by-step installation guide.

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