What is a Form 17?
A Form 17 is Washington State’s legally required Seller Disclosure Statement for most residential real-estate sales, governed by RCW 64.06. The seller must deliver the completed statement to the buyer within five business days of mutual acceptance (unless the parties agree otherwise), and the buyer then has three business days to rescind the agreement in writing after receiving it. It is a written record of what the seller knows about the home — and it is exactly the document VetTheHome is built to help you cross-check against the public record.
Updated July 13, 2026 · General information, not legal advice.
The essentials
- •The law: RCW 64.06 requires a seller disclosure statement for the sale of improved residential real property, with limited exemptions (for example, some new construction is exempt from certain structural and systems sections).
- •Who and when: the seller completes it and delivers it within five business days of mutual acceptance, unless otherwise agreed.
- •Your rescission right: after you receive it, you have three business days to back out by delivering a separately signed written rescission.
- •It is a disclosure, not a warranty. The statute states the disclosure statement is for disclosure only and is not part of the written purchase agreement — it reflects the seller’s knowledge, not a guarantee of condition.
What Form 17 covers
The statement is organized into eight disclosure sections:
Title
Ownership, easements, encroachments, boundary agreements, and any recorded or unrecorded claims against the property.
Water
The household water source (public, community, or private well), irrigation rights, and any water-system problems.
Sewer / on-site septic
Whether the home is on public sewer or an on-site septic system (OSS), and the condition and service history of that system.
Structural
Known defects in the roof, foundation, walls, and other structural elements, plus additions or remodels — and whether they were permitted.
Systems & fixtures
The condition of heating, electrical, plumbing, and other systems and built-in fixtures conveyed with the home.
Homeowners’ association
Whether the property is in an HOA, its dues and assessments, and any shared or common areas.
Environmental
Flooding, drainage, soil stability, and any known hazardous materials, contamination, or nearby environmental concerns.
Manufactured / mobile homes
Additional disclosures specific to manufactured and mobile homes, when applicable.
Verify the Form 17
A Form 17 records what the seller knows — or chooses to disclose. VetTheHome doesn’t replace it; it gives you an independent, records-based second opinion so you know which answers to press on. Several of the most consequential Form 17 disclosures have a public-record trail we check on every address:
| Form 17 disclosure | Public record we check | What it tells you |
|---|---|---|
| Sewer / septic | On-site septic (OSS) records | Whether the parcel has a septic system on file — a common Form 17 disclosure to confirm. |
| Water source | WA Dept. of Health well logs & water-service areas | Whether a private well is recorded, and the mapped drinking-water service area. |
| Environmental — flooding | FEMA National Flood Hazard Layer | Whether the parcel sits in a mapped flood zone or Special Flood Hazard Area. |
| Environmental — soil stability | WA DNR geologic hazards | Whether the parcel is in a mapped high liquefaction-susceptibility or landslide-hazard zone. |
| Environmental — contamination | WA Dept. of Ecology cleanup sites | Whether a known contaminated or cleanup site is recorded on or near the parcel. |
| Structural — additions & remodels | County building-permit records | The permit history — a check against undisclosed or unpermitted work. |
| Title — shoreline & historic | Shoreline master program & historic registers | Whether shoreline jurisdiction or historic-landmark status applies (added review before changes). |
| Tax status | County Treasurer records | Any recorded property-tax delinquency — not on Form 17, but a material fact for buyers. |
Every check is compiled from Washington public records and refreshed nightly. See the full methodology.
Common questions
Can a seller refuse to provide a Form 17?
For covered residential sales, RCW 64.06 requires the seller to deliver the disclosure statement. A buyer can waive the right to receive it in writing (except for the environmental section in most cases), but the seller cannot simply skip it on a covered transaction.
Does a Form 17 guarantee the home’s condition?
No. The statute is explicit that it is for disclosure only and is not a warranty. It reflects what the seller knows — not an inspection, an appraisal, or a promise. That is precisely why an independent records check and a licensed inspection still matter.
What if the seller didn’t know about a problem?
Form 17 discloses the seller’s actual knowledge. A defect the seller genuinely didn’t know about can be omitted in good faith — which is why buyers verify with records and a professional inspection rather than relying on the disclosure alone.
How does VetTheHome relate to Form 17?
VetTheHome is an independent, public-records report — not a Form 17 and not a substitute for one. Use our report to see what the records say about flooding, septic, permits, contamination, and more, then compare it to the seller’s Form 17 and ask about anything that doesn’t line up.
Check an address before you read its Form 17
What this guide is — and isn’t
This is general information about Washington’s Form 17, not legal advice — for advice about a specific transaction, consult a licensed real-estate broker or attorney. VetTheHome is an independent due-diligence tool built from public records; it is not a Form 17, not a professional appraisal (value figures are estimates, not an appraisal under RCW 18.140), not a title or lien search, and not a home inspection. Always verify with the seller’s Form 17, a licensed inspector, and a title company before you buy.