The Planning Division of the Community Development Agency promotes sustainability by regulating land use and real estate development. We are primarily responsible for writing planning policies and codes, and reviewing applications for various development permits, use permits, and subdivisions in the unincorporated areas of Marin County, California.
In response to the COVID-19 emergency and the Marin County Health Officer's Shelter-In-Place Order, the Development Services Center is CLOSED. Please contact us at:
Find information about current long range planning initiatives.
Find zoning designations and other information for properties in the unincorporated areas of Marin County.
Find information about the planning application process and fees.
A countywide resource for converting, reconfiguring or constructing Additional Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs).
Find information about the discretionary planning applications currently under review.
Find information about meetings held by the Board of Supervisors, Planning Commission, Deputy Zoning Administrator, and local Design Review Boards.
Find various publications that have County planning policies and regulations as well as other land use reports.