County of Sonoma
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Regulations and Initiatives

Multifamily Housing Development

Housing graphic - for rent

Housing Development Application Requirements

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

Housing Development Preliminary Application

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

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