San Luis Obispo County, CA Environmental Rules: Coastal Development (2026)
Key Facts
- Authority
- Title 23, Coastal Act
- Permit Required
- Coastal Development Permit
- Communities
- Cayucos, Cambria, Los Osos, Avila
- ESHA
- Pines, dunes, bluff scrub
- Daily Fine
- Up to $15,000
Summary
Coastal development in unincorporated SLO County is governed by Title 23 (Coastal Zone Land Use Ordinance) and the certified Local Coastal Program. Most development between the sea and the first coastal road requires a Coastal Development Permit. Cayucos, Pismo Beach (county-adjacent), Cambria, and Los Osos all sit within the LCP area.
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.
Full Breakdown
The California Coastal Act of 1976 (Public Resources Code Section 30000 et seq.) establishes the Coastal Zone in SLO County, generally extending inland 1,000 yards from the mean high tide line and farther in significant resource areas. Title 23 (Coastal Zone Land Use Ordinance) and the certified Local Coastal Program (LCP), including Title 22 Section 22.14.090's LCP Combining Designation, govern development in this area. Most construction, grading, vegetation removal, and changes in use require a Coastal Development Permit (CDP) from SLO County, with appeals available to the California Coastal Commission. Environmentally Sensitive Habitat Areas (ESHA) such as Monterey pine forest, native dune systems, and coastal bluff scrub trigger heightened restrictions. Bluff-top setbacks, public coastal access, view protection, and sea-level rise considerations all apply. Section 23.07.174 protects streams and riparian vegetation.
Violations & Fines
Unpermitted coastal development is a violation enforced by both SLO County and the Coastal Commission, with fines up to $15,000 per day per violation under PRC 30820-30822. Restoration of the site and significant penalties are common outcomes.
Frequently Asked Questions
Do I need a Coastal Development Permit in SLO County?
Which SLO communities fall under the Coastal Zone?
Sources & Official References
Other rules in San Luis Obispo County
California rules heatmap·Compare San Luis Obispo County to another location·View the California environmental rules overview
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