Sonoma, CA Landscaping Rules: Weed Ordinances (2026)
Key Facts
- Governing section
- SMC 14.10.040, Fire Code § 304.1.3.1
- Trigger
- Fire chief determines fire hazard from vegetation
- Owner options
- Self-clear or authorize city to clear
- Cost recovery
- Billed to owner, added to property tax if unpaid
- Related rule
- 304.1.3.2: 30-ft defensible space from neighbors
Summary
The City of Sonoma orders weed and brush abatement through its Fire Code amendments rather than a simple mowing height limit. Under SMC 14.10.040 (Fire Code Section 304.1.3.1), the fire chief notifies a property owner by mail when combustible vegetation makes a property a fire hazard, and the city can perform the abatement itself and bill the owner if nothing is done.
304.1.3.1 Combustible Vegetation. The fire chief shall notify a property owner by U.S. Postal mail when it is determined that a property is or may become a fire hazard due to combustible vegetation. The property owner may be given the choice of performing hazard abatement work on their own behalf, or authorizing the fire chief to have the work performed. In the event that the property owner does not reply, fails to complete the abatement, or authorizes the fire chief to perform the work on the owner's behalf, the fire chief may cause the work to be performed, then bill the property owner for the cost of such work plus an appropriate administrative fee. Upon the request of the property owner, or in the event that a property owner fails to reply to a bill for weed abatement services, the chief shall request the City Clerk to report the cost of such services to the County Tax Assessor, so that the balance due can be added to the property tax of that parcel of land.
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
1, Combustible Vegetation. Rather than setting a fixed inch-height limit, the ordinance is notice-and-abatement based: the fire chief mails the property owner notice once a property is determined to be, or may become, a fire hazard due to combustible vegetation. The owner then gets a choice: clear the vegetation personally, or authorize the fire chief to have the work done. If the owner does not respond or fails to complete the abatement, the fire chief may have the work performed anyway and bill the owner for the cost plus an administrative fee.
020. 2, requiring anyone owning, leasing, or controlling property within a designated defensible-space area to maintain at least 30 feet of defensible space from any neighboring building, structure, or property line, subject to modification by the fire code official based on site conditions. Both provisions are local Sonoma amendments layered onto the state-adopted Fire Code and are separate from CAL FIRE's State Responsibility Area defensible-space rules under Public Resources Code Section 4291, which apply outside city limits.
Violations & Fines
Failing to respond to a combustible-vegetation notice does not itself carry a separate fine; instead the fire chief can perform the abatement and recover the cost, plus an administrative fee, from the property owner, adding it to the property tax roll if unpaid. Chapter 14.10 violations more broadly, including failure to comply with a fire chief's order, are punishable under SMC 1.12.010 with escalating fines and can be pursued as a public nuisance subject to abatement.
Frequently Asked Questions
Does the City of Sonoma set a maximum weed height?
What happens if I ignore a weed abatement notice from the City of Sonoma?
How much defensible space does the City of Sonoma require around a home?
Is Sonoma's weed ordinance the same as CAL FIRE's defensible-space rule?
Sources & Official References
Other rules in Sonoma
How Sonoma compares: Cities with the Strictest Weed and Property Maintenance Rules·California rules heatmap·Compare Sonoma to another location·View the California landscaping rules overview
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Weed Ordinances in Nearby Cities
How other cities in Sonoma County handle weed ordinances.