• Housing graphic - for rent

Multifamily Housing Development

This page contains application requirements and an overview of the approval process for all housing development projects requiring design review

Application instructions for Housing Developments

On October 9, 2019, Governor Newsom signed into law SB 330, the Housing Crisis Act of 2019. The act amends existing state laws and creates new regulations around the production, preservation and planning of housing. The bill took effect January 1, 2020. Some provisions in the bill apply to all jurisdictions in the State; others apply only to “affected cities and counties.” Sonoma County is not currently an affected county, and the procedure outlined here includes only the statewide provisions that apply to Sonoma County. All provisions will sunset on January 1, 2025.

The goal of SB 330 is to create certainty in the housing development process and reduce processing times. The bill allows housing development projects to receive certain vesting rights through a preliminary application process. 

Application instructions for submitting a Housing Development Preliminary Application

Contact Information

Permit Sonoma
2550 Ventura Avenue
Hearing Room
Santa Rosa, CA 95403
38.465074, -122.723705

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Accessory Units & Junior Units

Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) are an inexpensive way to create smaller, more affordable rental housing units.

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Junior Unit

Try this new online tool to help estimate the costs, returns, and benefits associated with building an ADU.

Housing Initiatives

Permit Sonoma Housing Initiatives

Housing Initiatives

Permit Sonoma is introducing several initiatives to help meet the County's housing production goals.

Community Development Commission

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The Community Development Commission (CDC) is dedicated to promoting decent and affordable housing, revitalizing communities, and supporting public services.

Office of Recovery and Resiliency


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Recovery-focused information on the County's efforts to build and rebuild housing