Your neighbor cut your trees. New York triples the bill.

RPAPL § 861

The statute: treble damages for cutting another's trees.

Real Property Actions and Proceedings Law § 861 provides that a person who cuts, removes, injures, or destroys trees or timber on another person's land without permission is liable for treble damages. The statute sets the measure: three times the value of the trees under the statute's valuation rule, which looks to the stumpage value, meaning what the standing timber was worth, with a minimum amount per tree so that a small or young tree still produces a meaningful recovery. The statute also allows the owner to recover the costs of restoring the land, in appropriate cases in addition to the multiplied amount, and certain other costs the statute lists.

Two features of the statute decide most cases. First, the treble multiplier applies to the statutory value, not automatically to your arborist's replacement estimate. Stumpage value for a residential shade tree can be low, which is why the per-tree floor and the restoration cost provision matter so much for homeowners; the restoration figure, including replacement planting and site work, is often the largest component. Second, the statute has a good-faith defense: a defendant who shows they had reasonable cause to believe the land was their own, or that they had permission, may be liable for the single value rather than treble. That is why survey evidence and any prior communication about the boundary are central to the case.

The statute applies to more than clear-cutting. Girdling, topping, cutting major roots during excavation, or poisoning a tree all "injure" it within the statute's meaning, and a tree that dies over the following two years from that injury is a tree the neighbor destroyed.

Whose tree is it? The trunk decides.

In New York, a tree belongs to the owner of the land where its trunk stands. If the trunk is entirely on your side of the boundary, it is your tree, no matter how far its branches or roots extend onto the neighbor's land, and the neighbor may not cut it down.

If the trunk straddles the line, it is a boundary tree, and New York treats it as owned by both neighbors in common. Neither may remove or seriously injure a boundary tree without the other's consent. A neighbor who takes down a boundary tree unilaterally has injured your interest in it, and the claim runs under the same statute.

All of which makes the boundary the first factual question. If you have a survey, pull it. If you do not, and the trees were valuable, get one. The neighbor's good-faith defense depends on what they reasonably believed about the line, and a survey showing the trunks clearly on your side, especially if the neighbor had seen a fence or markers, closes that door.

Overhanging branches: the self-help rule.

The statute is about cutting trees on your land. It is not violated by a neighbor trimming your tree's branches back to the property line on their side. New York follows the general rule that a landowner may cut, at their own expense, branches and roots that encroach over the boundary onto their land, up to the line and no further. They may not cross the line to do it, they may not cut the trunk, and they may not trim so aggressively that the tree dies; a neighbor who "trims" your tree into a stump, or cuts so many roots that it falls, has injured a tree on your land and is back inside the statute.

The reverse also applies. If your neighbor's branches hang over your yard, you may trim them to the line yourself, at your own cost, and you generally cannot force the neighbor to do it for you or pay you for it unless the tree is dangerous and they know it. A dead or obviously hazardous tree the neighbor has been warned about and ignored is a negligence claim when it falls; see the neighbor property damage hub.

Document it the day you discover it.

• Photograph the stumps, the debris, and the line. Include wide shots showing the stumps' position relative to fences, markers, and structures.
• Count and measure. Stump diameter, species if you know it, approximate height from any earlier photographs. Old real estate listings, Google Street View history, and family photos are excellent for proving what was there.
• Hire an arborist. A certified arborist's report establishing species, size, condition, value, and the cost of restoration is the backbone of the damages claim. Ask for both a trunk-formula appraisal and a replacement-cost figure.
• Locate the survey or commission one.
• Preserve the communications. A text from the neighbor saying "we had the line cleared, hope that's okay" is an admission that it was not their land.
• Identify the crew. The tree service is a second defendant with its own liability insurance, and a licensed service that cut on the wrong side of the line without a survey has its own problem.

What a demand letter does here.

The tree letter is unusual among neighbor letters because it cites a statute with a multiplier, and that changes the conversation immediately. The letter identifies the trees by number, species, and location, attaches the survey and the arborist's report, states the statutory basis under RPAPL § 861, computes the treble figure and the restoration cost, addresses the good-faith defense head-on with whatever evidence shows the neighbor knew or should have known the trees were yours, and demands payment by a deadline. It goes to the neighbor and to the tree service, and it asks each to tender the claim to their insurer.

The neighbor's homeowner's policy generally covers this as a liability claim, and the tree service's commercial policy does too. The adjusters know the statute. A well-documented treble damages claim with a survey attached is one the carrier would rather settle than try. Our flat-fee demand letters page explains the process.

A worked example.

A Dutchess County homeowner returns from vacation to find four mature oaks along her back line cut to stumps. The neighbor, who is building a pool, says his contractor told him the trees were on his side. Her survey, recorded when she bought the house, shows the trunks two to six feet inside her line, and the old fence posts are still visible in the photos.

Her arborist values the oaks at $11,000 each on a trunk-formula appraisal and estimates $26,000 to remove the stumps, regrade, and plant the largest nursery replacements available. Stumpage value for four residential oaks is far lower than that appraisal, which is exactly why the letter leads with the restoration cost and the per-tree statutory floor and argues for treble damages on the statutory value with restoration on top. The letter attaches the survey, the photos of the fence posts, and the arborist's report, and it goes to the neighbor, the pool contractor, and the tree service. Two insurers open files. The matter settles for a figure that covers full restoration plus a substantial additional sum, without a lawsuit. Had it gone to court, the claim is well above small claims limits and would be a Supreme Court action with the survey as exhibit one.

When a letter is not the tool.

If the neighbor trimmed to the line and the tree is fine, you have no claim, however ugly the result. If a single small ornamental was cut and the neighbor has offered to replace it, take the replacement. If the dispute is really about where the boundary is and both sides have surveys that disagree, the boundary has to be resolved first, and that is litigation, not a letter. And if the trees were cut by a utility within its easement, the easement and the utility's tariff govern, and the statute may not apply.

For smaller claims, the New York small claims court guide covers filing, and town and village court small claims covers the courts most rural tree cases land in. For the other common neighbor disputes, see construction next door and upstairs neighbor leaks.