Permit and Resource Management Department Banner

Housing Types

Sonoma County recognizes that we need a variety of development types to meet our community’s housing needs. Below are links to permitting resources for different types of housing development.

Agricultural Housing

Housing types allowed on agricultural land, serving the agricultural uses of the land.

Accessory Dwelling Units

Accessory Dwelling Units (ADUs) are backyard cottages up to 1,200 square feet.

Junior Accessory Dwelling Units

Small living unit (up to 500 square feet) created out of a bedroom within an existing single family home.

Cottage Housing Developments

Small units similar in scale, bulk, and mass to a single-family home.

Home Occupations

Small-scale businesses and services within private residences, secondary to the residential use of the site, and compatible with surrounding residential uses.

Live-Work Provisions

Small-scale business activities in within private residences, permitted with a use permit. 

Mixed-Use Development

Allows a mix of residential and commercial uses in commercial areas where urban services, such as sewer and water, are readily available.

Mobile Home Parks

Temporary or permanent area for mobile homes.

Standards for Multi-Family Development

Development standards that apply to all multi-family rental housing projects. 

Single-Room Occupancy Facilities

Facilities that are intended to provide housing opportunities in selected commercial zones for lower-income one- or two-person households that cannot typically afford apartments.

Tiny Houses

A summary of local and State regulations on all types of small homes.

Work-Live Provisions

Allows some limited residential use in underutilized urban industrial areas.

Workforce Housing Combining Zone

A combining zone to allow housing on commercial- and industrial-zoned land.

Contact Information

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

Get updates on Housing Initiatives

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.

ADU Calculator (beta)

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

Learn More

CDC Logo

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

Office of Recovery and Resiliency


County Seal

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