Sign Regulations in San Leandro, CA (2026)
3 verified sign regulations for San Leandro, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
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.
Political/Campaign Signs in San Leandro
Some RestrictionsCalifornia Civil Code Section 4710
4710. (a) The governing documents may not prohibit posting or displaying of noncommercial signs, posters, flags, or banners on or in a member's separate interest, except as required for the protection of public health or safety or if the posting or display would violate a local, state, or federal law. (b) For purposes of this section, a noncommercial sign, poster, flag, or banner may be made of...
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.
San Leandro Bans Off-Site Ad Billboards
Heavy RestrictionsSan Leandro, CA, Municipal Code § 4.12.116 (Regulations for Off-Site Advertising Signs)
Off-site advertising signs are not permitted within the City. Any nonconforming off-site advertising sign may only be reconstructed or relocated pursuant to a relocation agreement between the City and the sign owner, consistent with Section 5412 of the California Business and Professions Code.
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.
San Leandro Window Sign Coverage Limit
Some RestrictionsSan Leandro, CA, Zoning Code Section 4.12.112.C (Regulations for On-Premises Signs, Window Signs)
Window Signs. 1. For the purpose of this section, a window shall be defined as that portion of a first or second floor facade consisting of a glass-like material designed to provide viewing of the interior from an adjacent exterior walkway and which shall be no less than 75 percent transparent from the exterior during daylight hours. Window area is defined as contiguous window panels separated ...
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County ordinances apply to unincorporated areas and may supplement San Leandro city rules.
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