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Property Maintenance in Sonoma County, CA (2026)

2 county-level rules, plus city-specific rules for 2 cities in Sonoma County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Sonoma County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Property Blight

Sonoma County declares any unsafe or dangerous building a public nuisance and abates it under Chapter 1's administrative procedure, with notice and order, civil penalties, and liens for unincorporated properties.

Sonoma County Substandard Building Abatement Rules

Significant Restrictions

Sonoma County Code § 7-19(ab)

"Unsafe or dangerous building" shall mean any building or structure which has any or all of the conditions or defects hereinafter described shall be deemed to be an unsafe or dangerous building, provided that such conditions or defects exist to the extent that the life, health, property or safety of the public or its occupants are endangered. The presence of an unsafe or dangerous building shal...

Vacant Lot Maintenance

Unimproved parcels in unincorporated Sonoma County must keep vegetation and combustible material cleared within 10 feet of structures and roadway frontage, or face abatement.

Sonoma County Vacant Lot Vegetation Rules

Some Restrictions

Sonoma County Code § 13A-4(b)

for unimproved parcels in the state responsibility area and local responsibility area:(1)Flammable vegetation and other combustible growth within ten feet (10') of structures and roadway frontage shall be removed;(2)Dead and dying vegetation within ten feet (10') of structures and roadway frontage shall be removed;(3)Grass and combustible surface vegetation within ten feet (10') of structures a...

Property Maintenance by City in Sonoma County

2 cities in Sonoma County have their own property maintenance rules. Each link goes to that city's dedicated page with code citations.

All Sonoma County ordinances

See every category we cover for Sonoma County: parking, noise, fences, fires, animals, pools, and more.

Sonoma County Ordinance Hub →