Portions of Costa Mesa fall within the California Coastal Zone. Because Costa Mesa does not have a certified Local Coastal Program (LCP), the California Coastal Commission retains permit authority over development in the coastal zone, requiring Coastal Development Permits for most construction and development activities in those areas.
Parts of Costa Mesa, particularly areas near the coast and along the Santa Ana River, fall within the California Coastal Zone as defined by the California Coastal Act of 1976. Since the City of Costa Mesa does not have a certified Local Coastal Program (LCP), the California Coastal Commission retains direct permit authority over development in these areas. Nearly all development within the coastal zone requires a Coastal Development Permit (CDP) from the Commission before work can begin. The Coastal Act defines development broadly to include construction, demolition, grading, changes in land use intensity, and even some changes that do not involve physical construction. Properties within the coastal zone may face additional requirements for solar panel installations, accessory structures, and remodels. The South Coast District Office of the Coastal Commission handles applications for Orange County properties. Standard CDP processing can take 3 to 6 months or longer. Some minor improvements may qualify for a CDP exemption or waiver, but property owners should verify their status with the Commission before starting any work.
Development in the coastal zone without a required Coastal Development Permit is a violation of the California Coastal Act. The Coastal Commission can issue cease-and-desist orders, restoration orders, and civil penalties up to $15,000 per day of violation. Contact the South Coast District Office at (562) 590-5071.
Costa Mesa, CA
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Costa Mesa, CA
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Costa Mesa, CA
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Costa Mesa, CA
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Costa Mesa, CA
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Costa Mesa, CA
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle coastal development.
See how Costa Mesa's coastal development rules stack up against other locations.
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