Marin County's coastal areas are regulated by the Local Coastal Program (LCP) Implementation Plan, codified in Title 20 of the Marin County Code. Development within the Coastal Zone — including West Marin and Bay shoreline — requires a Coastal Permit. BCDC also regulates within 100 feet of the Bay shoreline.
Title 20 of the Marin County Code implements the Local Coastal Program for the Marin County Coastal Zone, covering West Marin towns from Muir Beach through Tomales and parts of Point Reyes. The LCP regulates development, vegetation removal, grading, and shoreline armoring; a Coastal Permit is required for most projects. Separately, the San Francisco Bay Conservation and Development Commission (BCDC) has permit jurisdiction within 100 feet of the Bay shoreline along eastern Marin. BCDC adopted the Regional Shoreline Adaptation Plan in December 2024 under SB 272, and Marin must complete a local sea-level-rise plan approved by BCDC by 2034.
Construction in the Coastal Zone without a Coastal Permit violates Title 20 and is enforced by CDA with stop-work orders and restoration. BCDC adds civil penalties up to $30,000 per violation for unauthorized Bay shoreline work.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Marin County, CA
Driveway approaches onto county roads in unincorporated Marin County require an encroachment permit from County Public Works and must meet sight-distance, dr...
Marin County, CA
On County roads designated by Board of Supervisors resolution and posted with signs, oversized commercial vehicles (commercial-plated vehicles or combination...
Marin County, CA
Marin County has no county-wide overnight parking ban; on County roads designated by Board of Supervisors resolution and posted with signs, no vehicle may pa...
Marin County, CA
In unincorporated Marin County, it is unlawful to park a vehicle on any street or highway for more than 72 consecutive hours; signed roads carry additional p...
Marin County, CA
Marin County has no general ordinance banning recreational vehicles, trailers, or boats from parking on streets in unincorporated areas; the 72-hour street-p...
Marin County, CA
Shared boundary fences in California are governed by the Good Neighbor Fence Act (CA Civil Code §841), presuming adjoining owners share the cost equally afte...
See how Marin County's coastal development rules stack up against other locations.
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