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Sunnyvale, CA Fire Regulations: Brush Clearance (2026)

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

Key Facts

Code reference
SMC Chapter 9.48
VHFHSZ status
None, valley floor
Weed height limit
6 inches typical
Inspection season
Spring annual notice
Non-compliance
City abates and bills owner

Summary

Sunnyvale requires property owners to maintain defensible space and remove dead vegetation as a fire hazard. The city conducts annual weed abatement inspections under Sunnyvale Municipal Code Chapter 9.48.

A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line. ... The intensity of fuels management may vary within the 100-foot perimeter of the structure, with more intense fuel reductions being utilized between 5 and 30 feet around the structure, and an ember-resistant zone being required within 5 feet of the structure, based on regulations promulgated by the board, in consultation with the department.

Source: Sunnyvale Municipal Code Chapter 9.48View official code

Full Breakdown

Although Sunnyvale sits on the valley floor and has no Very High Fire Hazard Severity Zone designation, the city still enforces weed and rubbish abatement under Sunnyvale Municipal Code Chapter 9.48. Property owners must cut weeds and remove dead brush, dry grass over six inches tall, and combustible debris that create fire hazards. The city sends annual abatement notices in spring requiring compliance typically by late May or early June. If the owner fails to comply, the city hires contractors to abate and bills the property through a tax lien. Vacant lots, parcel edges, and alleyways are common inspection targets. Landscaped residential yards with maintained lawns generally comply without special action.

Frequently Asked Questions

Does Sunnyvale require 100 feet of defensible space?
No, Sunnyvale is not in a state-designated fire hazard zone, so the 100-foot defensible space law does not apply. Standard weed abatement still applies.
What happens if I ignore the abatement notice?
The city will contract the work and place the cost on your property tax bill, plus administrative fees.

Sources & Official References

Other rules in Sunnyvale

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