How San Leandro Handles Sign Regulations: A Practical Guide
San Leandro maintains 158 local ordinances across all categories, and 3 of those deal specifically with sign regulations. Here is a breakdown of what the city actually requires, what is prohibited, and where San Leandro falls on the strict-to-permissive spectrum compared to other cities.
Digital Billboards
San Leandro bans off-site advertising signs, including digital billboards, outright. Municipal Code Section 4.12.116 prohibits them citywide, and Section 4.12.112(J)(4) separately bars any sign from showing movement or a change in illumination intensity, closing the door on electronic message boards even as on-premises signage.
Key details: Off-site billboards: Prohibited citywide under SLMC § 4.12.116. Nonconforming billboards: Only reconstructed/relocated via City agreement. State tie-in: Cal. Bus. & Prof. Code § 5412 governs relocation. Animated signs: Also banned on-premises, per § 4.12.112(J)(4). Max penalty: $1,000 fine and/or 1 year jail per violation.
Installing or maintaining an off-site advertising sign, digital or static, or operating an animated/changeable-intensity sign without the narrow exceptions in Section 4.12.112(J)(4), is a zoning violation enforceable under Section 5.24.112. Repeat violations escalate from an infraction to a misdemeanor punishable by a fine up to $1,000, up to one year in county jail, or both, with each day of the illegal sign counted as a separate offense.
Compared to other cities, San Leandro takes a harder line on digital billboards. The enforcement and penalty structure reflects that.
Political Signs
San Leandro caps political signs at 16 square feet on private property and requires a Declaration of Intent filed with the City Clerk at least 2 days before installation. Signs are prohibited on all City property; on Caltrans/state highway property they may be posted no earlier than 90 days before the election and must be removed within 10 days after.
Key details: Max size (private property): 16 sq ft. Declaration of Intent: Required, file with City Clerk 2+ days before install. On City property: Prohibited. Caltrans timing: Post 90 days before, remove within 10 days after election. HOA preemption: Civil Code §4710: up to 9 sq ft signs / 15 sq ft flags protected.
A sign erected without complying with the Sign Code is a violation of San Leandro Zoning Code §4-1814. Non-compliant or abandoned campaign signs may be removed by the City and the cost of removal billed to the person who filed the Declaration of Intent. Signs on Caltrans property without a filed Statement of Responsibility are subject to removal by the State. Report illegal signs to the City Clerk's Office.
Window Signs
San Leandro caps window signs at 25 percent of the window area they occupy, under Zoning Code Section 4.12.112.C. Ground-floor storefronts get at most two window signs, and every window sign needs a City sign permit before it goes up.
Key details: Coverage limit: 25% of window area. Ground-floor sign count: 2 signs maximum. Second-story sign count: 1 sign per window. Window definition: At least 75% transparent glass. Permit required: Sign permit under Section 4.12.124.
Window signs installed without a permit, or exceeding the 25 percent coverage cap or the two-sign count, are Municipal Code violations subject to the City's administrative penalty process under Section 1-12-415: an Enforcement Officer can issue a notice of violation and an administrative penalty, with each day the excess signage remains treated as a separate violation. A responsible party can appeal the penalty or its amount by filing a hearing request under Section 1-12-425.
The Bottom Line
San Leandro's sign regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming San Leandro is broadly strict or permissive.
All of the above reflects San Leandro's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.