Renters, Landlords, and ORS 90.320: the Oregon Habitability Rule.

Rodent problems in rentals sit in an awkward spot: the tenant is living with the consequences, but the building — and most of the means to fix it — belongs to the landlord. Oregon law addresses this directly, and the news for renters is mostly good. Under the state's habitability statute, keeping a rental reasonably free of rodents is generally the landlord's responsibility, not a burden the tenant has to simply absorb. This is a plain-language guide to how that works, what the law actually says, and the practical, documented steps a tenant should take. It is general information rather than legal advice, and the details of any individual situation matter — but knowing the shape of the law is the place to start.

In an Oregon rental, keeping the unit reasonably rodent-free is, as a rule, the landlord's job — not something the tenant just has to live with.

What the habitability law requires

The Oregon Residential Landlord and Tenant Act sets a baseline that every rental must meet, and the core habitability provision is found at ORS 90.320. The statute requires a landlord to maintain the dwelling in a habitable condition, and it lists the specific elements that habitability includes. Among them — alongside working plumbing, heating, weatherproofing, and safe electrical systems — is a requirement that the premises be kept free from infestation, including rodents, at the start of the tenancy, and that the building and grounds be maintained in a clean, sanitary condition. In practical terms, a rental overrun with rats or mice is generally not meeting the habitability standard the law requires, and the responsibility for correcting that runs primarily to the landlord.

Where the lines can blur

The landlord's duty is the rule, but responsibility is not absolute or one-sided, and a few realities complicate it. A landlord is responsible for the structural and building-maintenance causes of infestation — the unsealed gaps, the failed exclusion, the conditions of the building and grounds. A tenant, in turn, has duties under the Act too: to keep their own unit reasonably clean and sanitary, to dispose of garbage properly, and not to create or worsen the conditions that attract pests. Where an infestation is genuinely caused by a tenant's own conduct, the analysis can shift. And in some shared or single-family situations a lease may allocate certain pest-control duties — though a lease cannot waive the landlord's underlying habitability obligation. The general principle holds: structural rodent problems are the landlord's to fix, while basic sanitation within the unit is the tenant's.

The steps a tenant should take

If you are renting and have a rodent problem, the law works best when you follow a clear, documented process. Rights are far easier to enforce when you have created a record.

1. Document everything. Photograph and date the droppings, the gnaw damage, the dead rodents, the entry points. Keep a written log of sightings and any health or property effects. This record is the foundation for everything that follows.
2. Notify the landlord in writing. Report the problem to the landlord or property manager in writing — email or a dated letter — describing the issue and asking for it to be addressed. A verbal complaint is easy to dispute; a written one starts the clock and creates proof of notice.
3. Give a reasonable time to repair. The law contemplates that the landlord gets notice and a reasonable opportunity to fix the problem. Keep your written request specific and keep copies of all correspondence.
4. Know the remedies if they do not act. Oregon law provides tenants with remedies when a landlord fails to maintain habitability after proper written notice. Depending on the circumstances these can include certain repair-and-deduct or rent-related remedies and, in serious cases, the right to terminate — but these remedies have specific notice requirements and procedures, and using them incorrectly can backfire. This is the point at which getting advice is worthwhile.
5. Get help understanding your options. Tenant-rights resources and legal-aid organizations in Oregon can walk you through the correct procedure for your situation before you withhold rent or take other action.

Why the documentation matters so much

Almost every tenant-landlord rodent dispute turns on two questions: did the landlord have proper notice, and what actually happened? Both are answered by records. A dated written notice establishes that the landlord knew and had a chance to act. Photographs and a log establish the severity and the timeline. Copies of correspondence establish what was promised and whether it was done. Tenants who keep this kind of record are in a dramatically stronger position than those relying on memory and verbal exchanges — not because the law favors the organized, but because habitability remedies are built around notice and reasonable opportunity to repair, and you can only prove those with a paper trail.

Where to turn for help

Several Oregon resources exist specifically for this. Oregon Law Center and Legal Aid Services of Oregon provide assistance to qualifying tenants, and community tenant-education organizations publish plain-language guides to the Residential Landlord and Tenant Act and to the repair-and-remedy procedures. Local code-enforcement or housing offices in cities like Portland, Eugene, and Salem can also address habitability violations in some cases. Because the remedies have technical notice requirements, talking to one of these resources before acting — especially before withholding rent — is the single best way to protect yourself while getting the problem fixed.

When to call (and who)

For the renter, the most useful call is often to a tenant-rights or legal-aid resource that can confirm the right procedure for your situation. As for the rodent work itself: arranging the actual control is generally the landlord's to coordinate, but understanding the building science — what real exclusion looks like, what a proper job involves — helps a tenant push for a fix that lasts rather than a few bait stations that do not address the entries. The law gives Oregon renters a strong position on rodent habitability. Used with good documentation and the right help, it is usually enough to get the problem genuinely solved.

This article is general information, not medical or legal advice. For a health concern, contact a healthcare provider or your local public health department; for a legal question, consult a qualified attorney or a tenant-rights resource.