Permit Sonoma
Permit Sonoma, previously known as the Permit and Resource Management Department, is Sonoma County's consolidated land use planning and development permitting agency. Virtually any land development or construction that takes place in the unincorporated area of Sonoma County (outside the nine incorporated cities) is reviewed, permitted, and inspected by Permit Sonoma.
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Septic Permitting Process Update
Vesting Certificates requests may now be made directly with assigned Well and Septic staff during the plan review process under an OWTS Construction Application. Customers will no longer be required to submit separate Vesting Certificate applications. Customer requests to convert unexpired Vesting Certificates to an OWTS Construction Permit should be submitted to PermitSonoma-Well-Septic@sonoma-county.org. Customers will no longer be required to submit separate OWTS Construction Applications to convert a Vesting Certificate to an OWTS Construction Permit.