Adverse possession in Washington State is the legal process by which someone who has openly occupied land they don’t hold title to can become its legal owner, but only after satisfying strict statutory requirements and winning a court order. The general rule requires ten years of continuous, open, hostile, and exclusive possession. A shorter seven-year path exists for claimants who hold a recorded title document or who pay all property taxes on the disputed land. Missing any single element defeats the entire claim, and since 2012 the losing party may be ordered to pay the winner’s attorney fees.
How Long the Possession Must Last
Washington has two overlapping timelines, and which one applies depends on what paperwork the claimant holds.
The Ten-Year Default
Under RCW 4.16.020, no action to recover real property can be maintained unless the record owner was seized or possessed of the property within the previous ten years.1Washington State Legislature. RCW 4.16.020 Actions to Be Commenced Within Ten Years – Exception Once that window closes, the owner’s right to reclaim the land is extinguished and the possessor can ask a court to confirm ownership. This is the timeline most claimants must satisfy.
The Seven-Year Alternatives
RCW 7.28.050 shortens the period to seven years for anyone who possesses land under a “connected title in law or equity deducible of record” — a recorded document such as a tax deed or court order that traces back to the state, the federal government, or a legally authorized seller.2Washington State Legislature. Revised Code of Washington 7.28.050 – Limitation of Actions for Recovery of Real Property – Adverse Possession Under Title Deducible of Record
A separate seven-year path under RCW 7.28.070 applies when a claimant holds “claim and color of title made in good faith” and pays all legally assessed taxes on the land for those seven years.3Washington State Legislature. Revised Code of Washington 7.28.070 – Adverse Possession Under Claim and Color of Title – Payment of Taxes The tax requirement is unforgiving. Miss a single year and the seven-year rule doesn’t apply.
The Four Elements You Must Prove
Whichever timeline applies, Washington courts require proof of four elements. Fall short on any one and the claim fails.
Hostile
“Hostile” is a legal term, not a description of behavior. It means you occupied the land without the record owner’s permission and treated it as your own. In Chaplin v. Sanders (1984), the Washington Supreme Court held that only the claimant’s outward conduct matters, not their private beliefs about who really owned the land.4Justia Case Law. Chaplin v Sanders 1984 Washington Supreme Court Decisions If the record owner can show they gave you permission, or that you acknowledged their ownership at some point, hostility fails.
Actual and Exclusive
You must physically use the land the way a true owner would, and you cannot share control with the record owner or the general public. Courts look for tangible signs: buildings, fences, farming, landscaping, or other improvements. In ITT Rayonier, Inc. v. Bell (1989), the Washington Supreme Court held that sporadic or minimal use will not satisfy this element.5Justia Case Law. ITT Rayonier Inc v Bell 1989 Washington Supreme Court Decisions If the record owner continued mowing, storing equipment, or otherwise using the land alongside you, exclusivity fails.
Open and Notorious
Your use must be visible enough that a reasonable owner exercising ordinary diligence would notice it. Fencing, grading, planting, and building all tend to qualify. Hidden or secretive use rarely does. In Lilly v. Lynch (1997), a Washington appellate court found that fencing and regular maintenance were enough to put a reasonable owner on notice.6FindLaw. Lilly v Lynch 1997 Washington Court of Appeals
Continuous and Uninterrupted
Possession must run without significant gaps for the entire statutory period. If the record owner reclaims the land or the claimant abandons it, the clock resets. Seasonal use can sometimes qualify when it mirrors how a typical owner in the area would use the property, such as a summer cabin, but that argument is fact-intensive.
Washington also permits “tacking,” which lets successive possessors combine their time if there was a direct transfer of possession. RCW 7.28.070 extends its benefits to those “holding under such possession, by purchase, devise, or descent.”3Washington State Legislature. Revised Code of Washington 7.28.070 – Adverse Possession Under Claim and Color of Title – Payment of Taxes A gap in the chain of possession breaks tacking.
Color of Title and Its Bonus
Color of title means a claimant holds a document, usually a deed, that looks like it conveys ownership but is legally defective. Perhaps the grantor didn’t actually own the land, or the legal description was wrong. Color of title isn’t required under the ten-year rule, but it opens the seven-year path and can strengthen any claim by showing good-faith belief in ownership.
Under RCW 7.28.070, a person who possesses land under color of title in good faith and pays all legally assessed taxes for seven consecutive years is deemed the legal owner “to the extent and according to the purport of his or her paper title.”3Washington State Legislature. Revised Code of Washington 7.28.070 – Adverse Possession Under Claim and Color of Title – Payment of Taxes Under the doctrine of constructive possession, a claimant may be awarded the full parcel described in the deed even if physical use covered only part of it, provided the record owner wasn’t actively using the rest. In El Cerrito, Inc. v. Ryndak (1962), the Washington Supreme Court affirmed that the defective deed alone doesn’t establish adverse possession; the claimant still must prove every element for the statutory period.7Justia Case Law. El Cerrito Inc v Ryndak 1962 Washington Supreme Court Decisions
Land That Cannot Be Claimed
Government-Owned Land
No amount of occupation will give someone title to land owned by the State of Washington or the federal government. RCW 4.16.160 blocks any claim of right based on the passage of time from being asserted against the state, and federal sovereign immunity does the same for U.S. government land.1Washington State Legislature. RCW 4.16.020 Actions to Be Commenced Within Ten Years – Exception This applies regardless of what the government uses the land for.
Forestland
Privately owned forestland carries heightened requirements. Under RCW 7.28.085, the claimant must prove open and notorious possession by clear and convincing evidence, a higher burden than the usual preponderance standard. At minimum, the claimant must show they made or erected “substantial improvements” that remained on the land for at least ten years.8Washington State Legislature. RCW 7.28.085 Adverse Possession – Forestland – Additional Requirements – Exceptions The statute defines that as a permanent or semi-permanent structure costing more than $50,000 to build. Walking, hunting, or even selectively logging someone else’s timber won’t come close. An exception applies to claimants who relied in good faith on boundary markers set by a registered land surveyor.
Boundary Disputes Between Neighbors
Most Washington adverse possession cases arise between neighbors, and the pattern is familiar. One homeowner builds a fence, driveway, or garden bed slightly past the deeded line and maintains it as their own for years. Courts apply the same four elements, but the evidence tends to center on physical markers and how both sides treated the strip.
Fencing is powerful evidence. In Lilly v. Lynch, the court found that a fence treated as the property line for an extended period, combined with regular maintenance of the enclosed land, supported the claim.6FindLaw. Lilly v Lynch 1997 Washington Court of Appeals If both neighbors continued to recognize the true surveyed boundary in conversation or correspondence, however, hostility collapses.
Informal agreements create the same problem. Telling a neighbor “go ahead and use that strip” grants permission, which destroys hostility from the start. Even casual acknowledgments of the true boundary can defeat a later claim. Good neighborly relations can, quietly, undermine the legal theory the claimant would eventually need.
How This Differs From a Prescriptive Easement
Adverse possession and prescriptive easements are often confused, and the distinction matters. Adverse possession transfers ownership of the land itself. A prescriptive easement grants only the right to use someone else’s land in a specific way, such as crossing it to reach a road, without transferring title.
The elements overlap: both require open, notorious, continuous, and hostile use for the statutory period. The key difference is exclusivity. Adverse possession demands exclusive control that shuts out the record owner. A prescriptive easement has no exclusivity requirement, so use shared with the owner or the public can still establish the right. If what you actually did was cross the land rather than possess it, the easement theory is the right fit.
Filing a Quiet Title Action
Adverse possession does not vest automatically when the statutory period runs. The claimant must file a quiet title action in the Superior Court of the county where the land sits. Under RCW 7.28.010, any person with “a valid subsisting interest in real property” may bring an action to quiet title or remove a cloud on ownership.9Washington State Legislature. Chapter 7.28 RCW Ejectment, Quieting Title The burden of proof rests entirely on the claimant.
Evidence that supports a claim typically includes dated photographs of improvements, records of property tax payments, testimony from neighbors and prior owners, and documentation of maintenance and construction. A professional boundary survey is often essential in encroachment cases where the disputed area is measured in feet. The record owner has the right to contest every element, and the court may order its own survey or examine historical records. Reaching a negotiated boundary line agreement before trial is common and usually cheaper for both sides.
What Winning Costs: Attorney Fees and Back Taxes
Since 2012, RCW 7.28.083 has given Washington courts authority to award reasonable attorney fees and costs to the prevailing party in an adverse possession case, whether that’s the claimant or the record owner. The award is granted only when the court determines it is “equitable and just,” so it is discretionary, not automatic.10Washington State Legislature. RCW 7.28.083 Adverse Possession – Reimbursement of Taxes or Assessments – Payment of Unpaid Taxes or Assessments – Awarding of Costs and Attorneys Fees Before this statute, successful claimants generally owed nothing toward the defending owner’s legal expenses.
The same statute lets the court require a winning claimant to reimburse the record title holder for part or all of the property taxes paid on the disputed land during the possession period, plus any taxes assessed after the claim was filed and left unpaid.10Washington State Legislature. RCW 7.28.083 Adverse Possession – Reimbursement of Taxes or Assessments – Payment of Unpaid Taxes or Assessments – Awarding of Costs and Attorneys Fees Where the acquired portion is only part of a larger parcel, the court allocates the tax obligation between the acquired portion and what the title holder retains. Winning does not mean the land comes free.
If You Own the Land: How to Stop the Clock
Property owners worried about losing land have several ways to interrupt the statutory period, and the earlier they act, the cheaper the fix. Physically reclaiming the property, granting written permission for the occupant’s use, or filing an ejectment action under RCW 7.28.260 all restart the clock.9Washington State Legislature. Chapter 7.28 RCW Ejectment, Quieting Title Written permission is particularly effective because it eliminates hostility going forward even if the occupant stays put.
Routine monitoring matters more than most owners realize. Walking property lines annually, keeping “No Trespassing” signage current, and documenting inspections all show possession was never uncontested. If encroachment appears, a neighbor’s fence a few feet over the line for example, addressing it promptly in writing preserves rights without escalation. A friendly letter noting the true boundary and granting temporary permission does the job. Waiting a decade is the most expensive strategy available.