Petaluma, CA Public Health Rules: Rodent Control (2026)
Key Facts
- Foundation requirement
- Must block rodent entry, §1.10.085(B)(1)
- Harborage nuisance
- Debris/garbage piles, §1.10.085(S)
- Infestation status
- Deemed substandard building, §1.10.085(L)
- County role
- Sonoma County health officer enforces health rules
- Max penalty
- $1,000 per day unabated
Summary
Petaluma requires residential building foundations to be kept free of open cracks and breaks so rodents cannot get in, and it separately declares accumulated debris, garbage, and rodent harborages on a property to be a hazardous, unsanitary public nuisance under Section 1.10.085.
1. Foundation. ... The building foundation shall be free from deterioration, maintained in a plumb and safe condition, be capable of supporting the load which normal use may place thereon, be free from open cracks and breaks, and be kept in such a condition so as to prevent the entry of rodents and other pests. ... ... S. Hazardous or Unsanitary Premises. Those premises on which an accumulation of weeds, vegetation, junk, dead organic matter, debris, garbage, offal, rodent harborages, stagnant water, combustible materials, and similar materials or conditions that constitute a fire hazard, health hazard, safety hazard, or a public nuisance shall be considered hazardous and a public nuisance.
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
085(B)(1) of the Petaluma Municipal Code makes rodent exclusion a physical building-maintenance requirement, not just a pest-control suggestion: the foundation of a residential building must be free from deterioration, kept plumb and safe, capable of supporting normal loads, free of open cracks and breaks, and kept in a condition that prevents the entry of rodents and other pests. The same section's subsection S then addresses the yard and premises side of the problem, declaring hazardous and a public nuisance any premises with an accumulation of weeds, vegetation, junk, dead organic matter, debris, garbage, offal, rodent harborages, or stagnant water that creates a fire, health, or safety hazard.
030 in severe cases. 020 is a representative of the Sonoma County health department authorized to enforce health regulations within Petaluma, giving the city a route to bring in county public health expertise on a serious infestation.
Violations & Fines
A property found with rodent-entry points in the foundation, harborage conditions in the yard, or an active infestation can receive a notice of violation under Section 1.10.085, with a reasonable abatement period. Failure to correct the condition exposes the responsible party to a penalty of up to $1,000 per day under Section 1.14.050, and a confirmed infestation feeding into a substandard-building finding can escalate toward condemnation under Section 1.10.030.
Frequently Asked Questions
Does Petaluma require my home's foundation to keep rodents out?
Can I be cited for a rodent problem caused by yard debris?
What does an active rodent infestation do to a rental's legal status?
Who handles serious rodent or health complaints in Petaluma?
Sources & Official References
Other rules in Petaluma
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Rodent Control in Nearby Cities
How other cities in Sonoma County handle rodent control.