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San Diego County, CA Environmental Rules: Coastal Development (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permit Required
Coastal Development Permit
Authority
County PDS + CA Coastal Commission
Governing Law
CA Coastal Act (PRC §30000+)
Local Plan
County Local Coastal Program
Habitat Protection
ESHA protections apply

Summary

Development in the unincorporated coastal zone of San Diego County requires a Coastal Development Permit per the California Coastal Act. The County's Local Coastal Program governs land use in coastal areas. The Coastal Commission has appellate authority over most coastal permits.

City-specific rules exist: Chula Vista, Escondido, and El Cajon have their own coastal development rules that differ from San Diego County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

ate the need for a formal boundary determination. Public Resources Code (PRC) Section 30103(a) specifically defines California's Coastal Zone as that land and water area of the State of California from the Oregon border to the border of the Republic of Mexico depicted on maps identified and set forth in Section 17 of that chapter of the Statutes of the 1975-76 Regular Session enacting PRC Division 20 (the Coastal Act of 1976). PRC Section 30103(b) directed the Coastal Commission to prepare and adopt more detailed 1:24,000 scale Coastal Zone Boundary (CZB) maps, which occurred March 1, 1977. These 161 adopted maps provide the official basis for all other representations of the landward CZB.

Source: County Zoning OrdinanceView official code

Full Breakdown

The California Coastal Act (Public Resources Code §30000 et seq.) requires Coastal Development Permits for most development within the coastal zone of unincorporated San Diego County. The County's certified Local Coastal Program (LCP) guides development decisions in the coastal zone, protecting coastal access, sensitive habitats, scenic resources, and agricultural lands. Projects within the coastal zone must demonstrate consistency with LCP policies. The California Coastal Commission has appellate authority over County permit decisions in certain areas and retains original permit jurisdiction over tidelands and submerged lands. Environmentally sensitive habitat areas (ESHAs) have additional protections. Public access to coastal resources must be preserved and enhanced.

Violations & Fines

Unpermitted development in the coastal zone may result in Coastal Commission enforcement action including restoration orders, cease-and-desist orders, and substantial fines.

Frequently Asked Questions

Do I need a Coastal Development Permit in San Diego County?
If your property is in the coastal zone of unincorporated San Diego County, most development requires a Coastal Development Permit. Minor improvements may be exempt. Contact County PDS to determine if your project is in the coastal zone.
What is the Local Coastal Program?
The LCP is the County's certified plan governing land use in the coastal zone. It includes policies on coastal access, habitat protection, scenic views, agricultural preservation, and development standards.
Can the Coastal Commission override county permits?
The Coastal Commission has appellate authority over many County coastal permit decisions and retains original jurisdiction in some areas. Commission staff may appeal County decisions that are inconsistent with the Coastal Act.

Sources & Official References

Other rules in San Diego County

All San Diego County rules

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