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Solano County, CA Fence Regulations: Height Limits (2026)

Few Restrictions

Verified 1 week ago|Source: Solano County Building & Safety Permit FAQ →

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Key Facts

Permit-Free Height: Up to 6 feet
Permit Required Over: 6 feet
Retaining Wall Permit Trigger: Over 4 feet (footing to top)
Sight Distance: Required at corners and driveways (Ch. 28)

City-specific rules exist: Vallejo, Fairfield, and Vacaville have their own height limits rules that differ from Solano County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

Solano County allows fences up to 6 feet in height without a building permit per the Solano County Building and Safety Division. Fences over 6 feet require a building permit. Fence placement is also subject to the Chapter 28 zoning standards for sight-distance and setbacks.

Full Breakdown

The Solano County Building and Safety Division confirms that fences not over 6 feet high do not require a building permit in unincorporated Solano County. Fences taller than 6 feet require a building permit and must comply with the structural provisions of the California Building Code as adopted by the County. Fence location is further regulated under Chapter 28 (Zoning Regulations): fences in required front yards and at street corners must preserve adequate sight distance for vehicles, and barbed-wire and electrified fences are restricted in residential and rural-residential districts and only generally permitted in agricultural zones (A-20, A-40, A-80) or for security at non-residential properties. Retaining walls not over 4 feet in height — measured from the bottom of the footing to the top of the wall — are similarly exempt from a permit.

Violations & Fines

Constructing a fence over 6 feet tall without a building permit is a violation enforced by the Solano County Building and Safety Division and can result in stop-work orders, administrative citations, and required removal or retroactive permitting. Fences that block roadway sight distance at corners or driveways are a Chapter 28 zoning violation and can be ordered to be lowered or relocated.

Frequently Asked Questions

How tall can my fence be without a permit in unincorporated Solano County?

The Solano County Building and Safety Division states that fences not over 6 feet high do not require a building permit. A fence taller than 6 feet requires a building permit.

Can I build a tall fence right up to the property line?

Yes, generally, but Chapter 28 requires fences at street corners and driveway approaches to preserve sight distance for vehicles, and certain types (barbed wire, electric) are restricted outside agricultural districts.

Do I need a permit for a retaining wall?

Solano County exempts retaining walls not over 4 feet in height, measured from the bottom of the footing to the top of the wall. Anything taller requires a building permit.

How does Solano County compare?

See how Solano County's height limits rules stack up against other locations.

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Solano County, CA Fence Regulations: Height Limits (2026)

Key Facts

Summary

Full Breakdown

Violations & Fines

Frequently Asked Questions

Sources & Official References

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