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Community, Homebuyers, Homeowners, SellersPublished April 30, 2026
What Disclosures Do Sellers Have to Make in Washington State?
If you are getting ready to sell a home in Pierce County or King County, it is completely normal to wonder, what exactly do I have to disclose?
A lot of sellers worry that they are supposed to know every flaw, predict every future issue, or somehow make their home “perfect” before listing. That is not the standard. In Washington, disclosures are generally about what you know, not about guaranteeing that nothing will ever go wrong.
For many standard residential sales in Washington, sellers are required to provide a Seller Disclosure Statement, often called Form 17. The goal is simple: give buyers a clearer picture of the property so everyone can move forward with fewer surprises.
And in markets like Auburn, Kent, Bonney Lake, Lake Tapps, Sumner, Buckley, Covington, and Maple Valley, that clarity matters. Some homes are newer and straightforward. Others have older systems, past repairs, acreage, drainage concerns, septic systems, or neighborhood-specific details that deserve a closer look. The more honest and organized you are upfront, the smoother the transaction usually feels.
What sellers are generally expected to disclose
Washington’s disclosure form is designed to cover known material facts about the property. In plain English, that means issues or conditions that could affect a buyer’s decision.
While every home is different, sellers are commonly asked about known information related to:
The home’s major systems and condition
This can include known concerns with things like:
- Roof condition
- Foundation or structural issues
- Plumbing, electrical, and heating systems
- Past or current leaks
- Drainage or moisture problems
If something has been repaired, replaced, or repeatedly caused problems, that is usually worth addressing carefully and honestly.
Water intrusion, drainage, and environmental concerns
Buyers want to know if there has been flooding, standing water, recurring moisture, mold, or other environmental issues. In some parts of Pierce and King County, drainage and water movement can be a bigger conversation than sellers expect, especially on sloped lots, older properties, or homes with larger yards.
Repairs, damage, and recurring issues
A past issue does not automatically kill a deal. What creates bigger problems is when a known issue comes out late.
If you know there was a pipe leak, roof repair, foundation work, pest treatment, or another significant issue, it is usually better to explain it clearly than hope it never comes up. Buyers are often much more comfortable with a problem that was handled than with a surprise they discover on their own.
Title, boundary, HOA, or legal-use concerns
Disclosure questions may also touch on things like:
- Easements
- Encroachments or boundary disputes
- Homeowners association obligations
- Shared access arrangements
- Zoning or permit-related issues you already know about
This is one reason local guidance matters. A home in a planned community in Bonney Lake or Maple Valley may raise different disclosure questions than a property with more land in Buckley or the outskirts of Auburn.
What disclosures are not asking you to do
This part is important.
Sellers are not usually being asked to become inspectors, engineers, or attorneys before they list their home. In general, the disclosure requirement is about sharing what you already know.
That means:
- You are not expected to open walls or investigate unknown issues without a reason
- You are not promising the home is defect-free
- You are not guaranteeing that a buyer will never find something during their inspection
The job is honesty, not perfection.
That is also why the phrase “as is” gets misunderstood so often. Selling a home as is does not remove the need to disclose known issues. It simply means the seller may not be agreeing to make repairs before closing. Buyers still need accurate information, and sellers are still better protected when they are upfront about what they know. That same theme came through clearly in Can I sell "as is"?
When do sellers provide disclosures in Washington?
Under Washington law, the Seller Disclosure Statement is generally delivered after mutual acceptance, and the timing matters.
A commonly cited rule is that sellers provide the disclosure statement within five business days after mutual acceptance, and buyers then have three business days after receipt to review it and potentially rescind based on the disclosure statement. Because timing and exceptions can matter, it is smart to confirm the exact process with your listing agent and closing professionals for your specific transaction.
Are there exceptions?
Yes. Some transfers are exempt from the standard disclosure-statement requirement.
That is one more reason not to rely on a quick online summary alone. If your sale involves an estate, court-ordered transfer, certain family transfers, or another unusual situation, the right next step is to get transaction-specific guidance instead of guessing.
What sellers in Pierce and King County should do before listing
If you want this part of the sale to feel easier, the best move is usually preparation.
1. Make a simple property history list
Write down the repairs, replacements, updates, insurance claims, leaks, or recurring concerns you remember. Even a rough list helps you answer disclosure questions more confidently.
2. Gather paperwork before you need it
Receipts, invoices, permits, HOA documents, and contractor records can all help support your answers and reduce last-minute stress.
3. Be careful with “I don’t know” vs. guessing
If you truly do not know something, that is different from guessing. Guessing can create more problems than a careful, honest answer.
4. Talk through any gray areas early
If there is an old repair, a neighbor dispute, a drainage concern, or a system you are unsure how to describe, talk it through with your agent before the form is delivered.
5. Remember that transparency usually helps
Most buyers are not expecting a flawless home. They are looking for honesty, context, and fewer surprises.
Why disclosures matter so much
Good disclosures do more than satisfy a legal requirement.
They help set expectations. They reduce the chance of ugly surprises during inspection. They make negotiations feel more grounded in reality. And they can help protect sellers from future disputes over information they knew and should have shared.
In other words, disclosures are not just paperwork. They are part of building trust.
If you are selling a home in Washington, you will likely need to disclose known material facts about the property through the Seller Disclosure Statement unless your transaction is exempt.
That usually means being honest about known issues with the home’s condition, systems, water or moisture concerns, repairs, and any title, boundary, HOA, or legal-use matters you are aware of. It does not mean you have to promise perfection or go hunting for problems you do not know about.
If you are getting ready to sell in Pierce County or King County and want help thinking through the disclosure side of the process, I am happy to walk through it with you. No pressure—just a clear conversation so you know what to expect and how to move forward with confidence.
— Larissa Butler, Realtor® | Keller Williams Realty
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Written by Larissa Butler, a top female Realtor serving Pierce and King County, Washington. Recognized for her data-driven marketing and focus on empowering women through homeownership.
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