Neighbor's Tree Hanging Over Your Yard? Missouri Rules

If a neighbor's tree hangs over your yard in Missouri, you can generally cut the branches back to the property line, from your own side, at your own expense, without harming the tree. You cannot cross the line, cut the tree down, or prune it until it dies. This is general information, not legal advice.

Key Takeaways

• You may trim overhanging branches back to the property line, from your own land, at your own cost.
• Killing or badly damaging a neighbor's tree can bring treble damages under RSMo 537.340, and the statute says you do not need to have been negligent.
• A trunk on the boundary is generally shared, so removal takes every owner's consent.
• A healthy tree that falls in a storm is usually an insurance claim. A visibly dead tree the owner ignored can be a negligence claim.
• Talk first, document everything, and get a written arborist assessment if you think the tree is dangerous.

Can I cut my neighbor's tree branches that hang over my yard in Missouri?

Yes, in general. Missouri courts have long recognized a landowner's right to cut off overhanging branches at the property line. You do the work from your own side, you pay for it, and you leave the tree healthy. You do not get to enter the neighbor's yard or take branches beyond the line.

That is not just theory. In Hasapopoulos v. Murphy, a St. Louis County dispute over three Chinese elms near a boundary, the Missouri Court of Appeals pointed to the owner's right to cut branches back to the line (Hasapopoulos v. Murphy, 689 S.W.2d 118, Mo. Ct. App. 1985). The City of University City says the same thing in its forestry FAQ: it will not force a neighbor to prune an overhanging tree, and under Missouri precedent the affected owner trims at the property line (City of University City).

A note on courtesy. The general rule, per FindLaw, is to give your neighbor notice before you cut. FindLaw's page describes the rule nationally and does not cover Missouri specifically, so treat it as good practice rather than a Missouri requirement. A short heads-up costs nothing and often prevents a fight.

Before you grab a saw, look at where the branches are. Limbs that touch or sit near a power line are not a homeowner job. Our post on how close a tree can be to a house, power lines, and fences explains why, and utility crews have their own statutory trimming authority that you do not share.

Photo: Zack Masters / Unsplash. A clean cut at the right branch is the standard to hold to when trimming back to the property line.

What counts as trimming versus damaging the tree?

Trimming means making proper pruning cuts. Damaging means flush cuts, stubs, or topping. University of Missouri Extension explains that a proper cut preserves the branch collar so the tree can seal the wound, while flush cuts damage the collar and interfere with sealing (MU Extension G6866). The same publication discourages topping, saying its use "should be restricted to a few extreme cases."

ISA calls topping "perhaps the most harmful tree pruning practice known" (ISA TreesAreGood.org). It also advises pruning back to a lateral branch at least one-third the diameter of the stem being removed. Chopping a neighbor's limbs off at the fence line in one ugly slice is exactly how a legal right turns into a legal problem. For a plain-language comparison, see crown reduction versus tree topping.

Big limbs are a different matter. MU Extension says branches larger than 6 inches in diameter should be removed only by experienced professionals (MU Extension G6867). If the overhang is that heavy, professional tree trimming done right at the line is safer than a ladder and a chainsaw.

What does Missouri's timber trespass law (RSMo 537.340) mean for me?

RSMo 537.340 says that if someone cuts, injures, or destroys trees on another person's land without authorization, they owe three times the value of what was damaged, plus costs. The statute states the injured owner does not have to prove negligence or intent (Missouri Revisor of Statutes).

In practice, that means the safe zone is narrow. Trimming overhanging branches to the line is one thing. Cutting a tree down because it drops leaves in your gutters, or hacking it back so badly that it declines and dies, can look like injuring or destroying your neighbor's tree. We cannot promise you a safe harbor, and neither can anyone reading a statute online. Courts look at the facts, and a light trim that causes no lasting harm is treated very differently from a dead tree. But "three times the tree's value" is a bad thing to learn about after the fact.

The statute also carves out electric suppliers, who may trim vegetation near their lines under specified clearances. Homeowners get no such exception.

What if the tree sits right on the property line?

Under the general rule, a tree whose trunk stands on the boundary is shared by both owners, and neither can remove it without the other's consent. Cutting it down alone risks the same kind of damages claim as cutting a tree that is entirely on the neighbor's land (FindLaw, general rule).

Be careful with this one. The source for the boundary-tree rule is general legal guidance, and we did not find a Missouri-specific authority for it. If a survey shows the trunk straddles the line, talk to a Missouri attorney before anyone cuts anything. Also remember that a boundary tree can look like it sits on one side while its root flare crosses the line. Guessing where the line runs is how neighbors end up in court.

Who pays if my neighbor's tree falls on my property?

Usually your own homeowners insurance pays first, whoever owned the tree. Missouri's Department of Commerce and Insurance notes that a homeowners policy covers removal of a fallen tree only when a storm caused it to fall and it damaged something the policy covers (Missouri DCI). Your neighbor's liability depends on what they knew.

Here is the split:

• Healthy tree, storm damage. Generally an insurance claim on your own policy. The owner is not usually at fault absent negligence.
• Visibly dead or diseased tree, owner on notice. The owner may be liable if they knew the tree was at risk and did nothing, and documentation such as complaint letters sent by registered mail helps show that they knew (Insurance.com).

Insurance.com is a general consumer source, not a Missouri court ruling, and we did not find a Missouri appeals case squarely on this point to cite. So the practical lesson matters more than the legal label: notice is what changes the outcome. A tree that looks fine and fails in a windstorm is bad luck. A tree with dead limbs and a fungus-ringed trunk that fails after you asked your neighbor to deal with it is a very different story.

For a St. Louis or St. Charles County homeowner, ash is the tree to watch. MU Extension reported emerald ash borer in 89 Missouri counties plus St. Louis city as of 2021, and dead upper branches and D-shaped exit holes are among the warning signs (MU Extension). Our guide to tree safety assessments for St. Louis homeowners covers the insurance side in more detail.

Photo: Zack Masters / Unsplash. Work near a roofline or a wire is where a trained crew earns its fee.

What should I do first: talk, document, or call an arborist?

Do all three, in that order. Start with a friendly conversation, follow it with a dated note, and photograph the tree. If you think it is dangerous, get a written assessment from a certified arborist. The goal is a paper trail created before a storm, not after.

Here is the order we would follow:

1. Talk to your neighbor. Most tree disputes end here. Explain what you see and ask whether they are willing to deal with it.
2. Take dated photos. Show the overhang, dead limbs, cracks, or fungus, and the distance to your house or roof.
3. Put it in writing. A short dated letter describing the concern. Registered mail creates proof of delivery.
4. Get an arborist's written hazard assessment. The Missouri Department of Conservation recommends ISA Certified Arborists and says to ask for liability and workers' compensation insurance certificates (MDC). MU Extension says the same about current certificates of insurance (MU Extension G6867).
5. Share the assessment. Give your neighbor a copy. Now they have notice too.

Not sure what you are looking at? Our hazardous tree checklist and the guide to dead limbs versus a dying tree show what to look for from the ground.

Do HOA rules or city ordinances change any of this?

They can. Missouri law sets the baseline, but an HOA's covenants or your city's ordinances may add approval requirements, and they apply on top of it. Check your HOA documents and call your city before removing anything. Our permit guide for St. Charles County explains how HOA rules are independent of city and county rules.

Street trees and trees in a public right-of-way are their own category. They belong to the municipality, and you should not cut them.

What can and can't you do about a neighbor's tree?

Missouri homeowners dealing with a neighbor's tree generally face five situations: overhanging branches, a trunk on the neighbor's land, a boundary tree, a healthy tree that falls, and a dead tree that falls after notice. The table below summarizes what the law generally allows in each, the main risk, and the source. It is general information, not legal advice.

Chart: Five common neighbor-tree situations in Missouri, what the law generally allows, the main risk, and the source.

Situation	What Missouri law generally allows	Main risk	Source
Branches overhang your yard	Trim to the property line, from your side, at your cost, without harming the tree	Harming the tree or entering their land	Hasapopoulos v. Murphy, FindLaw (general)
Trunk is entirely on neighbor's land	No right to cut down or remove it	Treble damages under RSMo 537.340	Missouri Revisor
Boundary tree	General rule: all owners must consent to removal	Co-ownership dispute, damages claim	FindLaw (general)
Healthy tree falls in a storm	Usually your own insurer pays, and the owner is generally not at fault	Little risk for the owner absent negligence	Missouri DCI, Insurance.com (general)
Visibly dead or diseased tree falls after notice	Owner may be liable	Negligence claim	Insurance.com (general)

Takeaway: in Missouri you may cut only to the property line, must never harm the neighbor's tree, and should put any safety concern in writing before a storm, not after.

When is it time to bring in a pro?

Call a pro when the branches are large, near your roof or a power line, or when you are unsure whether a tree is dangerous. A qualified crew can trim cleanly at the property line and can document what they see, so you are not guessing about the tree or the law.

At B. Woody's Tree Service, Bryan Wood and the crew are bonded and insured, and Bryan has been in this industry for more than 20 years. We can trim overhanging limbs the right way, with proper cuts and no topping, and we can look at a tree that worries you and tell you honestly what we see. If a tree is truly a hazard, tree removal is a conversation to have with the owner, not a job to start on their behalf. We only remove trees that are the customer's to remove.

Estimates are free, we offer military and senior discounts, and we run 24-hour emergency service for storm damage. Not sure who to call? Our guide to choosing a tree service in the St. Louis area lists the questions worth asking. When you are ready, reach us through the contact page.