Petaluma, CA Environmental Rules: Defensible Space (2026)
Key Facts
- Minimum clearance
- 30 feet (9.144 m)
- Governing section
- PMC §17.20.050 (Fire Code §304.1.2.1)
- Applies to
- Owners, lessees, and controllers of property
- Modification authority
- Fire Code Official, site-specific review
- Enforcement
- Fire Prevention Bureau, misdemeanor/infraction
Summary
Petaluma requires anyone who owns, leases or controls property in an area subject to defensible space rules to maintain at least thirty feet of defensible space around any building or structure. The Fire Code Official can modify that distance after a site-specific review of local conditions.
Section 304.1.2.1 is added to read as follows:304.1.2.1 Defensible Space—Neighboring Property. Persons owning, leasing or controlling property within areas requiring defensible spaces are responsible for maintaining a defensible space on the property owned, leased or controlled by said person, of not less than thirty feet (30') (9.144 m) around any building or structure. Distances may be modified by the Fire Code Official because of a site-specific analysis based on local conditions.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 2931 NCS, passed July 6, 2026).
Full Breakdown
144 meters) around any building or structure, even if that building belongs to someone else. This closes a gap that would otherwise let an adjacent, unmaintained lot undermine a homeowner's own clearance work. The Fire Code Official retains discretion to modify the thirty-foot distance based on a site-specific analysis of local conditions such as slope, vegetation type or fuel load, so the standard is a floor rather than an inflexible number in every case. 040 and the Wildland-Urban Interface Code requirements that apply to new construction in those zones; defensible space maintenance, by contrast, applies on an ongoing basis to existing buildings and neighboring land, not only to new development.
The Petaluma Fire Prevention Bureau enforces the requirement and can order clearance where vegetation or debris on any property, including a neighbor's, threatens the required thirty-foot zone.
Violations & Fines
Failing to maintain the required thirty-foot defensible space is enforceable under the Fire Code's general penalty provision, Municipal Code Section 17.20.050 (Fire Code Section 113.4), as a misdemeanor or, at the City Attorney's discretion, an infraction, with a separate violation for each day the condition continues; the city may also abate unmaintained vegetation as a nuisance under Chapters 1.13 and 1.14 and recover its costs from the property owner.
Frequently Asked Questions
How much defensible space does Petaluma require around a building?
Can the Petaluma Fire Department require more or allow less than 30 feet?
Am I responsible for defensible space on my neighbor's side of the property line?
Sources & Official References
Other rules in Petaluma
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