Sign Permit (Department of Buildings): Chicago restaurant guide
Chicago Department of Buildings
What it is
Most permanent exterior signs need a DOB sign permit with zoning review.
When a restaurant needs it
New or changed signs, except temporary window signs (under 60 days, under 25% coverage), adhesive decals and incidental signs.
How to apply
Start the application online in the Department of Buildings Dynamic Portal (ipiweb.cityofchicago.org) and pay the zoning review fee, then submit the printed online application, the supplemental paper application, a sign drawing, a location plan and any architect/engineer documents to DOB, Attn: Sign Permits, 121 N. LaSalle St., Room 900.
Documents you’ll need
- Sign drawings with dimensions
- Elevation/photo showing location
- Structural drawings for large signs
- Electrical contractor info for illuminated signs
Good to know
Stamped drawings by an Illinois-licensed architect or engineer are required for new sign boxes or channel letters, signs over 200 lbs, projecting signs with a face over 100 sq ft, ground signs over 24 ft tall and most roof signs. Any sign over 100 sq ft or more than 24 ft above ground also needs a City Council Order, and any electrical work must be done by the registered electrical contractor listed on the permit. Installing before the permit issues is subject to citation.
Official source
Answer a few questions about your space and get every permit in order, with a timeline, a cost range, walkthroughs, and every application filled in for you to sign with Open.
Last reviewed 2026-10-06. Guidance only, not legal advice.