Sonora Backyard Fire Regulations Rules (2026) — What You Need to Know
Heavy RestrictionsKey Facts
- Zone A (0–30 ft)
- Full defensible space clearance required
- Zone B (30–100 ft)
- Reduced fuel zone — trim and space vegetation
- Dead Grass Height
- Must be cut to 2 inches maximum
- Fire Hazard Zones
- City designates severity zones under Ch. 8.40
The Short Version
Sonora designates Fire Hazard Severity Zones and requires property owners to maintain defensible space around buildings. Zone A (0–30 feet) requires full vegetation clearance, while Zone B (30–100 feet) requires fuel reduction. These requirements apply to all backyard fire activity and property maintenance.
Full Breakdown
Under Sonora Ordinance No. 835, property owners must maintain defensible space around buildings. Zone A (0–30 feet from structures) requires clearing away all flammable vegetation. Zone B (30–100 feet) requires reducing fuel by trimming vegetation, providing separation between fuel types, and maintaining horizontal spacing appropriate to the parcel's slope. Dead or dying grass must be cut to a maximum of 2 inches. The city designates Fire Hazard Severity Zones under Chapter 8.40, with the most recent update via Ordinance No. 910 (October 2025). Ornamental trees, shrubs, and lawns of reasonable growth are exempt provided they don't obstruct sidewalks or streets.
What Happens If You Violate This?
Violations of defensible space requirements constitute an infraction under the Sonora Municipal Code and are subject to penalties under Chapter 1.08. The city may also abate weed and debris at the property owner's expense under Section 8.12.030.
Frequently Asked Questions
How far from my house must I clear vegetation?
What height must I keep my grass?
Sources & Official References
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