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County Code

The portion of the County Code administered and/or enforced by Permit Sonoma, plus the Building Division's Technical Bulletins for Sonoma County.

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County Code for Permit Sonoma

The County Code is the series of ordinances (law) enacted by the Sonoma County Board of Supervisors.

The list of chapters below is a featured index listing of the portion of the County Code administered and/or enforced by Permit Sonoma. It is intended as a quick access list and is not an exhaustive list.
For a full list: View All Chapters of County Code

Note: The County Code is hosted on a third party website.

Chapter Number
Chapter Title/Topic
Chapter 7Building Regulations
Chapter 7ARegulations for Limited Density Owner-Built Dwellings
Chapter 7BFlood Damage Prevention
Chapter 7CWood-Burning Appliances and Fireplaces
Chapter 7D3Water Efficient Landscape
Chapter 7D4Small Residential Rooftop Solar Energy System Review Process
Chapter 7D5Electric Vehicle Charging Station Permitting Process
Chapter 11Construction Grading and Drainage
Chapter 11AStorm Water Quality
Chapter 13Sonoma County Fire Safety Ordinance
Chapter 13ADuty to Maintain Defensible Space and Abate Hazardous Vegetation and Combustible Material
Chapter 15Highways, Roads & Bridges (Permits only)
Chapter 16Junk and Junk Dealers (Referral only)
Chapter 23Rivers and Streams (Ordinance 3836R)
Chapter 23ACalifornia Environmental Quality Act (CEQA) of 1970 Implementation
Chapter 24Sewers and Sewage Disposal (Permits only)
Chapter 25Subdivisions
Chapter 25AUnderground Utilities (Plan Check and Inspections only)
Chapter 25BWater Well Construction Standards
Chapter 26Sonoma County Zoning Regulations
Chapter 26ASurface Mining / Reclamation
Chapter 26CCoastal Zoning Resource Districts
Chapter 26DHeritage or Landmark Trees
Chapter 29Hazardous Materials Management
Chapter 40Sonoma Complex Fire Disaster Recovery
Chapter 40AKincade Fire Disaster Recovery
More Information and Ordinance Summary
Chapter 40BCOVID-19 Recovery
Chapter 40CWalbridge and Meyers Fires Disaster Recovery Urgency Ordinance (LNU Lightning Complex)
Chapter 40DGlass Fire Disaster Recovery Urgency Ordinance (PDF: 240 kB)

Building Technical Bulletins

Technical Bulletins are the Building Division’s interpretation of the County Code and state law and are available here to help you make sure your project conforms to state and local laws.

Go to Building Technical Bulletins