Under Colorado encroachment laws, a neighbor’s fence, wall, eave, or driveway that crosses onto your land is a trespass, and you can push for removal, monetary damages, or a formal boundary ruling in court. There is no single encroachment statute. The rules come from general trespass doctrine, quiet title actions, and the 18-year adverse possession framework in Colorado Revised Statutes § 38-41-101.1Justia. Colorado Code 38-41-101 – Limitation of Eighteen Years Because a structure sitting on your land is treated as a continuing trespass, your right to act does not expire while it is still there, but waiting long enough can let the neighbor claim the strip for themselves.
What Counts as an Encroachment
An encroachment is a physical intrusion. Something built or planted on one property crosses the boundary and occupies part of the neighbor’s land without permission. A dispute over where the line falls, on its own, is not an encroachment until something tangible sits in the disputed space.
Typical examples include fences a foot or two past the line, roof overhangs or eaves that project over a neighbor’s lot, driveways and patios poured across a boundary, retaining walls that spill onto adjacent land, and tree limbs or roots causing damage next door. A six-inch fence post and an entire garage wing are both legally actionable, but the size of the intrusion drives what a court will actually order.
Start With a Boundary Survey
Every encroachment dispute turns on where the property line actually is, and the only reliable answer comes from a professional boundary survey. A boundary survey locates corners, follows the deed descriptions in the field, and produces a certified record that courts treat as strong evidence. This is a different product than the mortgage or location survey many homeowners received at closing, which shows structures relative to approximate lines for financing and zoning purposes.
A residential boundary survey in Colorado typically runs between $1,200 and $5,500 depending on lot size, terrain, and whether the surveyor has to reconcile conflicting deed descriptions. Before you talk to your neighbor, and certainly before you file anything, order one. Without it you are guessing, and a guess is not something to build a lawsuit on.
Resolving the Dispute Without a Lawsuit
Most Colorado encroachment disputes settle. The ones that settle early tend to produce better results for both sides, because litigation over a few feet of dirt is slow, expensive, and corrosive to a relationship you cannot easily leave.
Direct Negotiation
Bring your survey to the conversation. Many encroachments are accidental, and a neighbor who built a shed two feet over the line often did not know exactly where the line was. Depending on what makes sense, you can ask them to move the structure, grant them an easement, or sell them the strip at a fair price. Whatever you agree to, put it in writing and record it with the county so it binds future owners of both parcels.
Boundary Line Agreements
If both of you would rather treat the existing fence or wall as the boundary going forward, a boundary line agreement can formalize that. It usually involves a written agreement drafted by a real estate attorney, a deed conveying the relevant strip, and a survey reflecting the new line. Record it with the county recorder. An unrecorded handshake does not survive a sale of either property.
Mediation
When direct talks stall, a neutral mediator can often break the deadlock. Colorado’s courts offer mediation services, and many districts encourage parties to try it before trial. A mediator cannot order anything, but they can help you reach creative arrangements a judge would not have the flexibility to impose, such as shared easements, cost-splitting on a replacement fence, or a phased removal schedule.
Suing Over an Encroachment
If negotiation fails, the owner whose land is being occupied can sue. The common Colorado claims are trespass actions seeking an injunction to remove the encroaching structure, trespass actions seeking money damages for the diminished value of the property, and quiet title actions asking the court to draw the boundary and declare who owns the disputed strip. A complaint identifies the parcels, describes the encroachment against the survey, and specifies the relief requested. Expect testimony from your surveyor, and from an appraiser if damages are in play.
When Courts Order Removal
The strongest remedy is an injunction requiring the encroaching party to tear out or modify the structure. Courts lean toward removal when the encroachment is significant, when it was intentional, or when the encroaching party knew or should have known where the line was. The court can also make the encroaching party pay the removal costs so the burden does not fall on the innocent owner.
When Courts Award Money Instead
When removal would be wildly disproportionate to the harm, courts sometimes award damages and let the structure stay. This happens most often with minor encroachments where demolition would cost far more than the value of a few inches of land. Damages are typically measured by the reduction in value of the encroached property, or the value of the strip effectively taken. The court weighs the hardship on each side in choosing between removal and compensation.
The 18-Year Adverse Possession Risk
The most serious reason not to ignore an encroachment is adverse possession. If someone openly occupies your land for 18 continuous years without permission, they can claim ownership of that strip under Colorado Revised Statutes § 38-41-101.1Justia. Colorado Code 38-41-101 – Limitation of Eighteen Years With an encroachment, that typically shows up as a fence or building that has sat over the line for close to two decades while the true owner said nothing.
Colorado tightened the rules in 2008 through House Bill 08-1148. For any claim filed on or after July 1, 2008, the person claiming the land must prove every element by clear and convincing evidence, a higher bar than the preponderance standard used in most civil cases. They must also show that they, or a predecessor, held a good-faith belief that they actually owned the disputed strip, and that the belief was reasonable under the circumstances.1Justia. Colorado Code 38-41-101 – Limitation of Eighteen Years
The good-faith requirement is where most post-2008 claims fail. A neighbor who knew the fence was on the wrong side and left it there cannot credibly claim they thought they owned the land. The 2008 amendments were designed to shut down land grabs by people who knew they were on somebody else’s property.
If a claim does succeed, compensation is discretionary. The court may order the adverse possessor to pay damages based on the county assessor’s most recent valuation for property tax purposes, and may order reimbursement of property taxes the original owner paid on that strip during the 18 years before filing. It may also order nothing.1Justia. Colorado Code 38-41-101 – Limitation of Eighteen Years
Prescriptive Easements
Long-running use can also ripen into a prescriptive easement, which is the right to keep using someone else’s land in a specific way without owning it. The requirements track adverse possession: open, continuous use for 18 years, without permission, and subject to the same 2008 good-faith and clear-and-convincing-evidence rules.1Justia. Colorado Code 38-41-101 – Limitation of Eighteen Years
The difference matters. Adverse possession transfers ownership; a prescriptive easement only preserves a use. A neighbor who has driven across your property to reach their garage for nearly two decades might win the right to keep doing that without gaining title to the strip they drive on. Where the court awards an easement rather than title, damages are calculated as a percentage of the property’s value based on the nature and extent of the use.
Three-Year Statute of Limitations, and Why It Rarely Bars You
Colorado’s general civil statute of limitations is three years under Colorado Revised Statutes § 13-80-101.2Justia. Colorado Code 13-80-101 – General Limitation of Actions – Three Years On paper that looks like a tight deadline. In practice, Colorado treats a permanent physical encroachment as a continuing trespass, so a new cause of action arises every day the structure stays on your land. The clock does not begin running until the encroaching party removes the intrusion.3Colorado Judicial Branch. Chapter 18 Trespass to Land and Private Nuisance
That is helpful if you have just discovered an old encroachment, but it should not lull you. The 18-year adverse possession clock runs at the same time. If the structure has been there long enough and meets the statutory elements, the neighbor may already own the strip and your trespass claim becomes moot. The three-year period is unlikely to bar you while the structure is still up; the 18-year window is the real deadline.
Disclosure When Buying or Selling
If you know about an encroachment and you sell a Colorado home, you have to disclose it. The Colorado Division of Real Estate’s seller property disclosure form asks specifically about encroachments, boundary disputes, and unrecorded easements, and the duty to disclose extends to any material fact the seller knows, whether or not the form calls it out by name.4Colorado Division of Real Estate. Sellers Property Disclosures (Land) Failing to disclose a known adverse material fact can create legal liability for the seller.
Buyers should read that line carefully. If a seller checks yes on the encroachment question, order a full boundary survey before closing. If a seller checks no and you later discover something they knew about, you may have a misrepresentation claim. Title insurance policies commonly contain a survey exception that excludes coverage for anything a survey would have revealed, so leaning on title insurance without ordering a survey leaves a real gap.