Marshall Agricultural Property Seeks Coastal Permit Exclusion at 17990 Highway 1

MARSHALL, Marin County — October 31, 2026. A land-use request at 17990 State Highway 1, Marshall is listed in Marin County’s current coastal permit categorical exclusion register as application P5977.

What does the public register show?

The county project list identifies the property and assessor’s parcel number 106-220-20, with an application date of November 18, 2025. Documents available for review include plans, a cover letter, habitat mapping and a biological assessment. The property is in the East Shore coastal planning area, where development is subject to specialized regulations.

What is a coastal permit exclusion?

Marin’s official guidance says certain limited development categories can qualify for an exclusion from full coastal development permit requirements, subject to location and eligibility criteria. The county must approve the exclusion before issuing later building, septic or well permits where applicable.

Has this applicant received an exclusion?

The current-project listing does not establish approval. It confirms that the application and supporting documents are under county review. Neighbors should use the application number to obtain the latest formal decision and any conditions, rather than interpret the application as construction authorization.

How can residents follow the proposal?

Review the plans and reports linked by the county, and contact Marin County Planning at 415-473-6269 for procedural questions. A coastal exclusion can involve environmental and zoning safeguards; it is not a blanket exemption from all building rules.

Source: Marin County, Current Coastal Categorical Exclusion Projects and Coastal Permit Exclusions guidance.

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