La Mesa, CA Sign Regulations: Digital Billboards (2026)
Key Facts
- Governing section
- LMMC § 15.10.040(b)
- Billboards
- Banned outright except pre-existing legal ones
- Animated/electronic signs
- Prohibited in all zones (items 2, 10, 18)
- Factual-display exception
- Time, temperature, weather displays allowed
- Monument sign exception
- Electric message center allowed, no flashing
- Enforcement
- Community development director; public nuisance abatement
Summary
In the City of La Mesa, billboards, animated signs, electronically flashing or alternating signs, and readerboard or changeable-copy signs are flatly prohibited in every zone under LMMC § 15.10.040(b), with only pre-existing lawful billboards and narrow factual displays like time and temperature exempted.
(b)Prohibited signs. All signs not expressly permitted by this chapter or by another provision of applicable law are prohibited in all zones. The following sign types and features are prohibited in all zones, unless otherwise provided.(1)Billboards and all new off-premise commercial signs using permanent structures;(2)Animated signs; ... (10)Electronically flashing, alternating or rotating signs (excepting barber poles using the traditional rotating red and white symbol, or displays of time, temperature, weather, and similar factual information); ... (18)Readerboard, changeable copy, and portable signs, either electric or nonelectric;
Full Breakdown
LMMC § 15.10.040(b) opens by declaring that all signs not expressly permitted by the sign ordinance are prohibited in every zone, then lists specific banned types. Billboards and all new off-premise commercial signs using permanent structures are banned outright (item 1), as are animated signs (item 2), revolving signs (item 3), and roof signs (item 4). Item 10 separately bars electronically flashing, alternating or rotating signs, carving out only barber poles using the traditional rotating red-and-white symbol and displays of time, temperature, weather or similar factual information.
Item 18 bans readerboard, changeable-copy and portable signs whether electric or nonelectric. This backs up the city's blanket billboard policy in § 15.10.015(e), under which the city completely prohibits construction or use of any billboard except one that already legally existed or held an unexpired permit as of that policy's adoption, citing Government Code § 65850 and Business and Professions Code §§ 5354(a) and 5408.3. The one carve-out for electronic message technology sits elsewhere: freestanding monument signs for commercial and industrial uses may incorporate an electric message center or automatic changing letters under § 15.10.040(d)(2), but flashing or blinking lights remain barred there too.
A digital billboard proposal in La Mesa therefore has no path to approval; only a small monument-sign message center, not a billboard, can use changing electronic copy.
Violations & Fines
The community development director enforces the sign ordinance under LMMC § 15.10.030. Any sign displayed contrary to Chapter 15.10, including a prohibited billboard or animated/electronic display, constitutes a public nuisance under § 15.10.038(e); the director gives notice and thirty days to remove it, or may summarily remove a sign posing an immediate peril, and bills the removal cost to the owner as a lien against the property.
Frequently Asked Questions
Can a business put up a digital billboard in La Mesa?
Are electronic message signs allowed anywhere in La Mesa?
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Sources & Official References
Other rules in La Mesa
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