Coastal Development: Altadena vs Castaic
How do coastal development rules compare between Altadena, CA and Castaic, CA?
Altadena and Castaic have similar restriction levels.
Altadena, CA
Los Angeles County
Several unincorporated LA County areas fall within the California Coastal Zone, including communities near Malibu and the Santa Monica Mountains. Coastal development permits from the California Coastal Commission may be required. LA County DRP administers local coastal programs for unincorporated coastal areas.
View full Altadena rules →Castaic, CA
Los Angeles County
Several unincorporated LA County areas fall within the California Coastal Zone, including communities near Malibu and the Santa Monica Mountains. Coastal development permits from the California Coastal Commission may be required. LA County DRP administers local coastal programs for unincorporated coastal areas.
View full Castaic rules →Key Facts Comparison
| Fact | Altadena | Castaic |
|---|---|---|
| Coastal Zone | Parts of unincorporated county included | Parts of unincorporated county included |
| Permit | Coastal development permit may be needed | Coastal development permit may be needed |
| CCC | California Coastal Commission oversight | California Coastal Commission oversight |
| Local Program | LA County DRP administers | LA County DRP administers |
Highlighted rows indicate differences between cities.
Altadena FAQ
Do I need a Coastal Development Permit in LA County?
If your property is in the California Coastal Zone (parts of Marina del Rey, Santa Monica Mountains, and other coastal unincorporated areas), most development requires a CDP. Contact the Department of Regional Planning at (213) 974-6411 to check.
How long does a Coastal Development Permit take?
CDPs typically take 3-6 months for standard projects. Projects in environmentally sensitive areas or requiring Coastal Commission review may take 6-12 months or longer.
Can I appeal a CDP decision?
Yes. CDP decisions can be appealed to the California Coastal Commission within 10 working days of the local decision. Appeal fees and procedures are set by the Commission.
Castaic FAQ
Do I need a Coastal Development Permit in LA County?
If your property is in the California Coastal Zone (parts of Marina del Rey, Santa Monica Mountains, and other coastal unincorporated areas), most development requires a CDP. Contact the Department of Regional Planning at (213) 974-6411 to check.
How long does a Coastal Development Permit take?
CDPs typically take 3-6 months for standard projects. Projects in environmentally sensitive areas or requiring Coastal Commission review may take 6-12 months or longer.
Can I appeal a CDP decision?
Yes. CDP decisions can be appealed to the California Coastal Commission within 10 working days of the local decision. Appeal fees and procedures are set by the Commission.
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