Tiny House as ADU

Sonoma (County), California

Overview

Name Tiny House as ADU
Municipality Sonoma (County)
Zoning Districts Generally, zones that permit Residential Uses
Effective Date 04/15/2023
Municipal Code Chapter 7 of the Sonoma County Municipal Code
Code Link https://library.municode.com/CA/Sonoma_County/codes/code_of_ordinances?nodeId=CH7BURE_ARTIIRURE
Authority Permit Sonoma

Summary

From Facebook: On March 14th 2023 the Sonoma County Board of Supervisors passed new zoning code that allows each county property, that doesn’t already have an ADU, to add a mobile unit to their property.
Under the new code, the property owner will need to provide water, electric and septic connections and a space for the unit.
The unit can be a Tiny House, Park Model, RV, Mobile Home or a Manufactured Home.
The permit is good for one year – but it is renewable yearly.
Under the new code Tiny House owners can rent a space and utilities from property owners who have installed the proper infrastructure and obtained a permit.
Alternately, property owners can provide a Tiny House or other mobile unit for renters. This new option is way more affordable than building a traditional ADU so hopefully more property owners will exercise this new option. The new code goes into effect on April 15, 2023.

Key Contacts

Permit Sonoma

PermitSonoma@sonoma-county.org

Phone: (707) 565-1900

Permit Center & Mailing Address
2550 Ventura Avenue
Santa Rosa, CA 95403
Google Maps™ Directions

Notes

Sonoma County Tiny Houses Web page

Link to Ordinance 6406

Updated Jan 24 by Laura

THIA will be constantly updating the legislation data. Check back often. Suggest A Correction if you are aware of any missing or incorrect information. AND keep scrolling to learn more about getting guidance.

Key

Category

Building Code — Legislation that speaks to how to construct a tiny house.

Zoning Code — Legislation that speaks to how the lot will be used.

Type

ADU — Accessory Dwelling Unit

DMV — Division of Motor Vehicles

IB — Industrialized Buildings

IRC — International Residential Code

PUD — Planned Unit Development

RV — Recreational Vehicle

SF — Single Family Dwelling

T — Transitional Housing

UDO — Unified Development Ordinance

Please Suggest a Correction if you find broken links or misinformation.

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