Oregon property disclosure requirements are among the most clearly defined in the country. The Oregon Revised Statutes require residential property sellers to complete a written disclosure statement identifying known material defects, conditions, and facts about the property. Understanding these requirements is essential for every Oregon home seller — whether you're working with a traditional agent, using a flat fee MLS service, or selling entirely on your own.
The disclosure process protects both sellers and buyers. Sellers who disclose known issues honestly reduce their exposure to post-sale legal disputes. Buyers receive the information they need to make informed purchasing decisions. When disclosure is done properly, both parties benefit.
What Oregon Law Requires
Oregon Revised Statutes section 105.465 requires sellers of residential property to provide a completed Seller's Property Disclosure Statement to prospective buyers. This is a standardized form that covers the property's condition, known defects, and relevant facts.
The key legal standard is that sellers must disclose conditions and defects they actually know about. You are not required to hire inspectors to discover problems you're unaware of. You are not required to guarantee the condition of the property. You are required to honestly answer questions about issues within your knowledge.
This is an important distinction. The law doesn't demand perfection — it demands honesty. If your roof has never leaked to your knowledge, you can honestly report that. If it leaked three years ago and you had it repaired, you should disclose both the leak and the repair.
What the Disclosure Form Covers
The Oregon Seller's Property Disclosure Statement is organized into several categories that systematically address the property's condition.
Title and Ownership questions cover easements, encroachments, boundary disputes, liens, shared driveways or walls, and any restrictions that affect the property. If you're aware of a neighbor's fence encroaching on your lot or a utility easement running through your backyard, these must be disclosed.
Water and Sewer Systems section addresses the source of water (public, well, or other), the type of sewage system (public sewer or septic), and any known issues with either. For Oregon properties on well water — common in rural areas throughout the state — you should disclose the well's age, any water quality testing you've performed, and whether the well has ever run dry during summer months.
Septic system disclosure is particularly important in Oregon. Many properties outside city limits rely on septic systems. Sellers should disclose the system's age, maintenance history, any failures or backups, and whether the drain field has been replaced or repaired.
Structural Components cover the foundation, walls, roof, attic, floors, and any structural modifications made to the home. If you know about foundation cracks, water intrusion in the basement, a prior termite treatment, or an unpermitted addition, these require disclosure.
Oregon's climate makes water-related issues particularly relevant. The extended rainy season means basements and crawl spaces in many Oregon homes experience moisture. If your home has a history of water intrusion — even if you've installed a drainage system or sump pump to address it — disclose both the issue and the remedy.
Systems and Appliances questions cover heating, cooling, plumbing, electrical, appliances, and built-in systems. Note any systems that have failed, been repaired, or are near end-of-life. If your furnace is original to a 1985 home, you don't need to characterize it as defective — but if it's required costly repairs or inconsistently heats the home, disclosure is appropriate.
Environmental Factors include lead-based paint (required for homes built before 1978 under federal law), asbestos, radon, underground storage tanks, soil contamination, and any environmental cleanup activity. Oregon has areas with elevated radon levels, and previous radon test results should be disclosed if you have them.
Natural Hazards cover flood zone status, landslide areas, earthquake risk, and wildfire risk. Oregon properties in certain zones — particularly in the West Hills of Portland, coastal bluffs, and forested areas — may have specific natural hazard considerations. If your property has been mapped in a flood zone, landslide hazard area, or wildfire risk zone, disclose this even if no event has occurred during your ownership.
Neighborhood and Land Use questions address nearby nuisances (noise, odors, commercial operations), planned developments you're aware of, zoning issues, and neighborhood conditions that might affect the property's use or value.
How to Complete the Disclosure Properly
Approach the disclosure form with straightforward honesty. Here are practical guidelines for completing it well.
Answer every question. Don't leave blanks. If you don't know the answer, mark "Unknown" rather than leaving the field empty. Blanks create ambiguity that can lead to disputes.
Be specific rather than vague. If you experienced a roof leak, note when it occurred, what area of the roof was affected, and what repairs were made. "Roof leak repaired in 2023 by ABC Roofing — replaced flashing around chimney" is far better than "some roof work done."
Include dates and details for any work you've had performed. If you replaced the water heater in 2024, refinished the hardwood floors in 2022, or had the sewer line scoped and repaired in 2023, note these. Improvements are positive disclosures that demonstrate maintenance and care.
Don't minimize or downplay known issues. A small foundation crack that you've been told is cosmetic should still be disclosed with the characterization you received. "Small hairline crack in basement wall — structural engineer reviewed in 2024 and characterized as cosmetic/non-structural" is an honest, complete disclosure.
Disclose previous insurance claims related to property damage. If you filed a homeowner's insurance claim for water damage, fire, or other property damage, the repairs and the claim itself should be disclosed.
What You Don't Need to Disclose
Oregon disclosure law has boundaries. You are not required to disclose the following.
Facts about the property that you genuinely do not know. The standard is knowledge, not investigation. You're not expected to crawl through the attic or hire inspectors to discover conditions you're unaware of.
Information about deaths on the property. Oregon law specifically does not require disclosure of deaths that occurred on the property, regardless of manner.
Information about registered sex offenders in the neighborhood. This is publicly available information that buyers can research independently.
Personal reasons for selling. Whether you're selling due to divorce, financial hardship, job relocation, or any other personal reason is your private information.
Disclosure Timing and Process
Oregon law requires that the disclosure be delivered to the buyer before the buyer makes an offer, or if not provided beforehand, the buyer has a statutory right to revoke their offer within a specified period after receiving the disclosure.
In practice, most Oregon sellers complete the disclosure when they list their property and make it available for all potential buyers to review. This approach is transparent, efficient, and reduces the likelihood of issues arising later in the transaction.
When working with a flat fee MLS brokerage, your listing process typically includes completing the disclosure form as part of the intake workflow. The form is then made available to buyer's agents who schedule showings or submit offers.
Protecting Yourself Through Honest Disclosure
The best protection against post-sale legal problems is comprehensive, honest disclosure. Oregon case law consistently holds that sellers who disclose known issues in good faith — even significant ones — are far better protected than sellers who conceal or minimize problems.
Buyers who discover undisclosed issues after closing have legal remedies available. Defending against these claims is expensive and stressful, even if you ultimately prevail. The cost of disclosure is zero. The cost of concealment can be enormous.
When in doubt, disclose. If you're uncertain whether a condition is material enough to mention, include it. Over-disclosure carries no legal risk. Under-disclosure carries substantial risk.
Disclosure for Specific Oregon Property Types
Certain property types in Oregon trigger additional disclosure considerations.
Properties with well water should include any available water quality test results, the well's age and depth, the pump's age and condition, and any seasonal flow issues.
Coastal properties should disclose erosion history, bluff setback measurements, any coastal zone permits or restrictions, and flooding or storm damage history.
Properties in wildfire-prone areas should disclose any defensible space work performed, fire-resistant material upgrades, and whether the property is in a designated wildfire risk zone.
Properties with agricultural use should note any current farm use tax deferral, which may create a tax obligation for the buyer if the use changes.
The Bottom Line
Oregon seller disclosure is not a burden — it's a framework for transparent transactions that protects everyone involved. Complete your disclosure honestly, specifically, and thoroughly. When in doubt, include more rather than less. And approach the process as an opportunity to demonstrate that you've been a responsible, informed property owner.
Your listing brokerage can provide the appropriate disclosure forms for your situation. Begin the listing process and complete your disclosure as part of the intake workflow to ensure everything is ready before your first showing.