My Neighbor’s Fence Isn’t Where I Thought It Was: What Louisiana Law Says About Boundary Lines

If you’ve ever looked at the fence between your property and your neighbor’s and thought, “Is that really where the line is?”, you’re not alone. Boundary questions are one of the most common property issues people bring to a lawyer in Catahoula and Concordia Parish. The good news is that Louisiana law has clear rules for figuring this out. This post walks through what those rules actually say, in plain language.

What Is a “Boundary,” Legally Speaking?

Louisiana law defines a boundary as the line that separates two neighboring pieces of land. A “boundary marker” is anything, natural or man-made, that shows where that line is on the ground: a fence, a row of trees, a stake, a ditch, or anything similar.

That sounds simple. The problem is that markers get moved, fences fall down and get rebuilt in a slightly different spot, and sometimes nobody ever marked the line correctly in the first place. When that happens, Louisiana law gives you a way to fix it.

Two Ways to Fix a Boundary: Working It Out, or Going to Court

You have two options if you and your neighbor disagree about where the line is, or if there’s never been a clear line at all.

Option one: agree on it in writing. If you and your neighbor can sit down and agree on where the line should be, you can put that agreement in writing and it becomes legally binding. This is called fixing the boundary “extrajudicially,” meaning outside of court. It’s faster, cheaper, and a lot less stressful than a lawsuit. Once you sign it, that agreement works like a settlement. It’s binding on both of you.

Option two: ask a court to decide. If you can’t agree, either neighbor can file a lawsuit asking a judge to fix the boundary. This is called an “action to fix boundary.”

One important thing to know: the right to ask a court to fix a boundary never expires. Louisiana law says this right is imprescriptible, meaning there’s no deadline that can cut it off. You can bring this kind of case even decades after a dispute starts.

Who Can Ask the Court to Fix a Boundary?

You don’t have to be the full owner of the property to have this right. Louisiana law allows any of the following people to ask a court to fix a boundary:

  • The owner of the land
  • Someone who possesses the land as if they were the owner, even without a deed
  • A usufructuary (someone with a legal right to use and enjoy property that belongs to someone else, common in succession situations)
  • A lessee (renter), if fixing the boundary is necessary to protect what they’re renting

How Does a Court Actually Decide Where the Line Is?

Louisiana courts follow a specific order of priority. First, the court looks at ownership. If both sides can prove who legally owns what through their deeds and titles, the court sets the boundary based on that. If titles trace back to the same original owner, and there’s a conflict between them, the older title wins. If nobody can clearly prove ownership through paperwork, the court looks at possession instead: who has actually been using and treating the land as their own, and for how long?

The Rule That Surprises Most People: Thirty Years Can Beat Your Deed

Here’s the part of the law that catches a lot of people off guard. Louisiana law says that if you and the previous owners of your property have possessed land for thirty years without interruption, within a visible boundary like a fence or tree line, and that boundary includes more land than your deed technically says you own, the court will set the legal boundary at that thirty-year fence line instead of your paper description.

In plain terms: if a fence has stood in the same spot for thirty years or more, and your family has treated the land up to that fence as yours that whole time, the law can recognize that fence line as the real boundary, even if your deed says something different.

This is a big deal in rural parishes like ours, where fences get built based on where things have always been rather than a fresh survey, and where land gets passed down for generations without anyone rechecking the paperwork against the ground.

What If a Marker Was Just Put in the Wrong Spot by Mistake?

Sometimes there’s no real dispute about ownership, someone just put a fence or a marker in the wrong place by accident. Louisiana law allows a court to correct that kind of honest mistake. The exception: if a neighbor has already gained ownership up to that mistaken marker through thirty years of possession, the court generally won’t move it.

Who Pays for All This?

If you and your neighbor fix the boundary by written agreement, the cost is split equally unless you agree otherwise. If you end up in court, court costs are handled the way they normally are in Louisiana civil cases, and other expenses like a surveyor or attorney are generally paid by whoever incurred them.

Don’t Move or Remove a Boundary Marker on Your Own

Once a boundary has been marked, either by a court or by written agreement, don’t remove or move that marker without going back to court for authorization. Louisiana law makes you liable for damages if you do, and a judge can order you to put it back.

What This Means for You

  • A written agreement is almost always faster and cheaper than a lawsuit, if you can reach one.
  • If your family has used land up to a visible line for thirty years or more, that history matters, sometimes more than the deed itself.
  • There’s no deadline to ask a court to resolve a boundary dispute.
  • Never move a fence or marker on your own once a boundary has been legally set.

If you’re dealing with a property line question in Catahoula or Concordia Parish, the Law Office of Paul Lemke can help you sort out what your rights actually are before a disagreement with a neighbor turns into something more serious.

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Paul Lemke is an Attorney Licensed to practice in the State of Louisiana and has his office located in Jonesville, Louisiana, he is a former archeologist and currently is the Public Defender of Catahoula Parish. He makes his home in Harrisonburg, Louisiana and has a small micro brewery there producing beer and mead.

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