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Multnomah County, OR Code Violation Reporting: How to Report (2026)

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

Key Facts

Investigation trigger
Health Officer or Sheriff becomes aware
Standard notice period
30 days to abate
Appeal window
7 days to request hearing
Emergency nuisance
Immediate abatement, notice follows
County abatement surcharge
25% of abatement cost added

Summary

Multnomah County residents can report suspected nuisances, stagnant water, dead animal carcasses, abandoned vehicles, unsecured vacant buildings, to the Health Officer or Sheriff, who investigates and can order abatement within 30 days under County Code § 15.230.

City-specific rules exist: Gresham has its own how to report rules that differ from Multnomah County's county-level regulations. If you live in Gresham, check the city-specific page instead.

(C) An investigation may be conducted whenever the Health Officer or Sheriff becomes aware that a nuisance exists.

(D) Whenever it appears there is reasonable cause to believe that a nuisance exists, the Health Officer or Sheriff shall provide written notice to the owner of the existence of the nuisance and shall demand abatement within 30 days from the date of the written notice, or such lesser time as may be set by the Health Officer or Sheriff to protect the public health, safety and welfare. The notice shall describe with reasonable certainty the property, the nature of the nuisance and the action necessary to abate the nuisance, and shall inform the owner of the owner's rights under §§ 15.231 and 15.232, and the procedure by which the owner may contact the notice provider for more information.

(E) In an emergency, the Health Officer or Sheriff may order immediate abatement of a nuisance. The Health Officer or Sheriff shall give notice of the requirement for immediate abatement to the owner.

(F) In an emergency, and in lieu of action under division (E) of this section, the Health Officer or Sheriff may proceed with immediate abatement of the nuisance. The Health Officer or Sheriff shall then immediately send written notice of abatement to the owner of the property.

(G) In a situation in which the property owner has refused to abate a nuisance, or has taken or threatened action that gives the Health Officer prob- (S-1 2025)

Full Breakdown

Multnomah County's Nuisance Control Law covers stagnant water, uncontrolled weeds, dead animal carcasses, abandoned vehicles, unsecured vacant buildings and a dozen other listed conditions, and it applies to both unincorporated and incorporated areas of the county, including Portland, under § 15.225. To report one, contact the county Health Officer or Sheriff, who may open an investigation whenever either becomes aware a nuisance exists. If reasonable cause is found, the county mails the owner written notice demanding abatement within 30 days, or orders immediate abatement if the condition is an emergency. Owners who miss the deadline face county-initiated abatement, a 25% cost surcharge, and a lien on the property.

Violations & Fines

Owners who ignore a 30-day abatement notice violate the subchapter and commit a county offense under ORS 203.810; the county can then abate the nuisance itself, bill the owner for the cost plus a 25% administrative surcharge, and file a lien against the property.

Frequently Asked Questions

How do I report a nuisance in Multnomah County?
Contact the county Health Officer or Sheriff. Under Code § 15.230(C), an investigation may be opened whenever either official becomes aware a nuisance exists on a property.
What happens if the property owner doesn't fix it?
After the 30-day written notice period lapses, the county can abate the nuisance itself, bill the owner the cost plus a 25% surcharge, and place a lien on the property.
Does this cover properties inside Portland?
Yes. Code § 15.225 states the Nuisance Control Law applies to both unincorporated and incorporated areas of the county, which includes Portland.

Sources & Official References

Other rules in Multnomah County

All Multnomah County rules

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