Corona, CA Sign Regulations: Window Signs (2026)
Key Facts
- Permit requirement
- Not required for window signs
- Allowed floors
- Ground floor and second story only
- Placement
- Interior side, except holiday/seasonal displays
- Temporary sign duration
- Maximum 90 days
- Coverage limit
- No more than 25% of window area
- Enforcement
- Administrative citation under § 1.08.130
Summary
Corona lets storefronts hang window signs without a permit, but the Municipal Code caps how much glass they can cover and how long temporary signs can stay up. Under Code of Ordinances § 17.74.140(C), signs are limited to the ground floor and second story, must face inward except for holiday displays, cannot cover more than 25% of the window, and temporary signs must come down within 90 days.
(C) Window sign regulations. Sign permits are not required for window signs; however, they are subject to the following restrictions:
(1) Signs shall be allowed only on windows located on the ground floor and second story of a building frontage.
(2) Signs shall be placed on the interior side of the window, except that holiday or seasonal window displays and temporary messages may be placed on the exterior side of the window.
(3) A temporary window sign shall not be displayed for more than 90 days.
(4) Not more than 25% of the window area may be covered.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2025 S-56: Supplement contains: Local legislation passed through Ord. 3423, passed 12-3-2025).
Full Breakdown
140. 140(C). That exemption comes with four specific conditions. First, window signs may only be displayed on windows on the ground floor and second story of a building frontage, so upper-floor office windows above the second story cannot carry signage. Second, signs must sit on the interior side of the glass; the code carves out only one exception, for holiday or seasonal window displays and temporary messages, which may be placed on the exterior side. 74 for banners, feather flags, and construction signage. Fourth, no more than 25% of the total window area may be covered by signage, whether that is paper posters, painted lettering, or vinyl decals.
020(D) that anything not expressly permitted is prohibited, meaning a sign combination that pushes past the 25% cap or the 90-day window is a code violation even without a permit ever having been filed. 08 rather than through a permit revocation, since no permit exists for these signs.
Violations & Fines
There is no permit to pull for exceeding these limits, so Corona code enforcement handles violations directly. An Enforcement Officer can issue a notice of violation or, under § 1.08.130, an administrative citation once a business has been warned or the same violation recurs. Citations must state the code section violated, the required corrective action, and the fine amount, which the City Council sets by resolution; payment under § 1.08.150 is due within 30 calendar days, and each day the oversized or overdue sign remains up counts as a separate offense.
Frequently Asked Questions
Do I need a permit for a window sign in Corona?
How much of a storefront window can a sign cover in Corona?
How long can a temporary window sign stay up in Corona?
What happens if a window sign breaks Corona's rules?
Sources & Official References
Other rules in Corona
California rules heatmap·Compare Corona to another location·View the California sign regulations overview
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