Digital Billboards: Altadena vs Santa Clarita
How do digital billboards rules compare between Altadena, CA and Santa Clarita, CA?
Altadena and Santa Clarita have similar restriction levels.
Altadena, CA
Los Angeles County
Title 22.140.430 of the LA County Code prohibits digital and electronic message-center billboards in all residential zones of unincorporated areas, allowing them in commercial and industrial zones only with a Conditional Use Permit and strict brightness, dwell-time, and spacing limits.
View full Altadena rules →Santa Clarita, CA
Los Angeles County
Title 22.140.430 of the LA County Code prohibits digital and electronic message-center billboards in all residential zones of unincorporated areas, allowing them in commercial and industrial zones only with a Conditional Use Permit and strict brightness, dwell-time, and spacing limits.
View full Santa Clarita rules →Key Facts Comparison
| Fact | Altadena | Santa Clarita |
|---|---|---|
| Residential zones | Digital billboards prohibited | Digital billboards prohibited |
| Commercial zones | Conditional Use Permit required | Conditional Use Permit required |
| Brightness cap | 0.3 foot-candles above ambient | 0.3 foot-candles above ambient |
| Minimum dwell time | Eight seconds, no animation | Eight seconds, no animation |
| Spacing | 1,000 feet between digital faces | 1,000 feet between digital faces |
Highlighted rows indicate differences between cities.
Altadena FAQ
Can a business install a digital billboard on its commercial lot?
Only with a Conditional Use Permit from Regional Planning, plus compliance with brightness, dwell-time, spacing, and residential setback limits in Title 22.140.430. The hearing process takes several months.
Are freeway-facing digital billboards regulated by the County?
Off-site freeway-facing billboards fall under the California Outdoor Advertising Act, which preempts most local sign rules. Caltrans and the State permit those, not the County, though the County still regulates lighting impacts.
Santa Clarita FAQ
Can a business install a digital billboard on its commercial lot?
Only with a Conditional Use Permit from Regional Planning, plus compliance with brightness, dwell-time, spacing, and residential setback limits in Title 22.140.430. The hearing process takes several months.
Are freeway-facing digital billboards regulated by the County?
Off-site freeway-facing billboards fall under the California Outdoor Advertising Act, which preempts most local sign rules. Caltrans and the State permit those, not the County, though the County still regulates lighting impacts.
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