Boise, ID Sign Regulations: Window Signs (2026)
Key Facts
- Permit-exempt limit
- 25% of window area
- Above threshold
- Sign Permit required
- Governing section
- BCC § 11-04-012(4)(A)(11)
- Administering agency
- Planning and Development Services
Summary
Boise lets window signs cover up to 25 percent of a window's area without a sign permit; go over that and the sign falls under the city's standard Sign Permit process.
4. Signs Not Requiring a Permit: The following shall be exempt from requirement to obtain a Sign Permit under Section 11-05-05.1.A... A. General Signs: ... (11) Window signs that maintain 25 percent or less aggregate area of the window area; ... 5. Signs Requiring a Permit: Unless specifically exempted by Subsection 4 above..., each erection or installation of a sign in the City shall require the approval of a Sign Permit pursuant to Section 11-05-05.1.A.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-31: Code current through: Ord. 20-26, passed 6-9-2026).
Full Breakdown
Boise City Code § 11-04-012 exempts window signs from the citywide Sign Permit requirement only if their aggregate area stays at or below 25 percent of the window. The Code separately lists signs displayed inside a window as part of a merchandise display as permit-exempt on their own. Anything larger, or window signage that isn't part of a merchandise display, falls under Subsection 5's general rule: any sign erected in the city needs a Sign Permit under § 11-05-05.1.A unless a specific exemption applies. The Planning and Development Services Department administers sign permitting.
Violations & Fines
Window signage exceeding the 25 percent threshold without a Sign Permit is treated as an unpermitted sign and is subject to the city's standard sign-code permitting and enforcement process under § 11-05-05.1.A.
Frequently Asked Questions
Can I cover my whole storefront window with signs in Boise?
Do merchandise displays in a window count toward the limit?
Sources & Official References
Other rules in Boise
Compare Boise to another location·View the Idaho sign regulations overview
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