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Sonoma, CA Fence Regulations: Height Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Rear/interior setback max
7 feet (8 with open grillwork above 7')
Front/street-side setback max
3.5 feet
Intersection sight-area max, solid
30 inches
Open-material exception
75%+ open, e.g. lattice
Governing table
Table 4-3, SMC 19.46.030

Summary

City of Sonoma fences and walls max out at 7 feet in rear and interior side setbacks, but only 3.5 feet in front and street-side setbacks. Fences at street or driveway intersections drop to 30 inches if solid, inside required traffic-safety sight areas, unless the material is at least 75 percent open.

A. Maximum Heights. Fences, hedges, and walls (except retaining walls) may be constructed to the heights shown in Table 4-3. See also SMC 19.46.040, Height limitations for retaining walls. ... | Rear and interior setbacks | 7 feet1 | | Front and street-side setbacks2 | 3.5 feet | | At intersections of streets, alleys, and driveways within traffic safety sight areas | 30 inches if solid; otherwise the maximum height normally allowed, if the fence material is 75% open (e.g., lattice). | Notes: 1.An additional one foot of height is allowed (to a maximum of eight feet tall), but all fencing material above seven feet in height shall be open grill or latticework, or a similar open design allowing light and air to pass through at least 40 percent of the fencing material.

View official code

Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 13-2025, passed December 3, 2025).

Full Breakdown

030, General height limitations, sets Table 4-3, the City of Sonoma's baseline fence, hedge and wall height table (current through Ordinance 13-2025, December 3, 2025). Rear and interior setbacks allow fences up to 7 feet, with a footnote permitting an additional foot to a maximum of 8 feet, provided all fencing material above 7 feet is open grillwork, latticework, or a similar open design that lets light and air pass through at least 40 percent of the material. 040 can authorize additional height. The tightest limit applies at intersections of streets, alleys, and driveways within traffic safety sight areas: a solid fence is capped at 30 inches, but a fence built from material that is at least 75 percent open, such as lattice, can reach the normally allowed height for that location instead.

040. 030(B)-(C), but only after finding the fence is compatible with the site and surrounding neighborhood, properly oriented and located, a planned architectural feature that will not dominate or overwhelm the surroundings, and soundly constructed so it creates no safety hazard. 050 from the finished grade at the base of the fence on the higher of two adjoining parcels when the grade difference is under 2 feet, or as determined by the building official when the difference is 2 feet or more; a variation of up to 6 inches is allowed for topography averaging.

Violations & Fines

An oversized or noncompliant fence is enforced through the City of Sonoma's general development-code enforcement chapter, SMC 19.90: it is declared a public nuisance under SMC 19.90.040(A), and building or maintaining it contrary to the code is a misdemeanor under SMC 19.90.040(B). The city planner issues a written notice of violation with a 30-day correction window under SMC 19.90.070(B) before pursuing further legal remedies, including civil penalties set by the council's fee resolution under SMC 19.90.080(B)(1).

Frequently Asked Questions

How tall can my backyard fence be in the City of Sonoma?
Up to 7 feet in rear and interior side setbacks under SMC 19.46.030's Table 4-3, or 8 feet total if everything above 7 feet is open grillwork or latticework that is at least 40 percent open.
How tall can I build a fence along the street in Sonoma?
Front and street-side setbacks cap fences at 3.5 feet under Table 4-3 in SMC 19.46.030, though additional height can be granted through a conditional use permit under SMC 19.54.040.
Why is my corner-lot fence limited to 30 inches?
SMC 19.46.030's Table 4-3 caps solid fences at 30 inches within the traffic safety sight area at street, alley, and driveway intersections; a fence built from material that is at least 75 percent open can reach the normally allowed height instead.

Sources & Official References

Other rules in Sonoma

All Sonoma rules

How Sonoma compares: Cities That Allow the Tallest Residential Fences·California rules heatmap·Compare Sonoma to another location·View the California fence regulations overview

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Height Limits in Nearby Cities

How other cities in Sonoma County handle height limits.

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Santa Rosa, CA
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