Trees on the Property Line: Who Gets the Permit, Who Pays?
Updated 2025 · Applies to boundary trees between residential properties nationwide
A tree growing on the property line is legally jointly owned by both neighbors. Both must agree to remove it. The permit is applied for by the initiating owner, but both signatures may be required by some cities. Neither owner can remove a shared tree without the other's consent.
What Is a Boundary Tree?
A boundary tree is any tree whose trunk straddles the property line between two adjacent parcels at ground level. If any part of the trunk sits on both properties, most states treat the tree as jointly owned under the doctrine of co-tenancy. This is legally distinct from a tree that merely overhangs a property line — an overhanging tree whose trunk is entirely on one property belongs solely to that owner.
Where does the trunk sit at ground level? Entirely on your side: your tree, your permit. Touching both sides: shared tree, both must agree before any removal.
Who Applies for the Permit?
The owner who initiates removal typically applies. Some cities — including Austin, TX and Portland, OR — explicitly require signatures from all property owners when a tree straddles a boundary. Submitting a permit application for a boundary tree without your neighbor's agreement risks the permit being voided and violations issued for any work already started.
Best practice: Agree in writing with your neighbor first. Attach the written agreement to the joint permit application. Most city arborists appreciate this approach and it reduces review time.
Who Pays for Removal?
Costs are generally split between owners, but the actual split depends on why the tree is being removed, who initiated it, and what you've agreed to in writing. Get the cost split documented before any work begins.
What If Your Neighbor Refuses?
If the Tree Is a Documented Safety Hazard
Document the hazard with dated photographs and an ISA-certified arborist report. Notify your neighbor in writing by certified mail. If they refuse, contact your city's code enforcement. Many cities have a nuisance tree complaint process that can compel action. In extreme cases, a court can order removal.
If It's Not a Safety Hazard
You cannot force removal of a healthy boundary tree your neighbor wants to keep. The co-tenancy doctrine gives them equal ownership rights. You can negotiate, offer to cover full costs, or wait — but you cannot remove the tree over their objection. What you can do unilaterally: trim branches and roots that cross into your property up to the property line, at your own cost, without damaging the tree's overall health.
State-by-State Boundary Tree Laws
| State | Legal Basis | Both Owners Required? | Notes |
|---|---|---|---|
| California | Civ. Code §834 | Yes | Explicit statutory co-ownership |
| Texas | Common law | Yes | Case law establishes joint ownership |
| Florida | Co-tenancy doctrine | Yes | Consistently applied by courts |
| New York | Case law | Yes | Court of Appeals confirmed |
| Oregon | ORS 105 | Yes | Portland urban forestry echoes state rule |
| Georgia | Co-tenancy | Usually | Verify locally |
Liability When a Boundary Tree Falls
If a boundary tree falls and causes damage, liability analysis is complex: courts look at which owner knew (or should have known) the tree was hazardous, and whether they took reasonable steps to address it. Both owners share some exposure; the owner who knew and did nothing typically bears greater liability.
Frequently Asked Questions
Legally, yes — if any part of the trunk at ground level touches your neighbor's property, most states treat it as a boundary tree. The percentage split doesn't change the doctrine. Have a surveyor confirm the exact property line if there's any doubt — a $300–$500 survey is far cheaper than disputed liability after the fact.
If the trunk is entirely on your neighbor's property, you have the right to cut roots that cross into your property up to the property line — but do so carefully and preferably with an arborist, as aggressive root cutting can destabilize or kill the tree and create new liability. Notify your neighbor in writing first. If the damage is severe and the neighbor is unresponsive, consult a property attorney about a nuisance claim.
No — dead boundary trees still require permits in most cities, and still require co-owner agreement for removal. The boundary tree doctrine applies to the tree's physical position on the land, not its health status. If the dead tree presents a hazard, document it thoroughly, notify your neighbor and the city, and pursue emergency authorization if the hazard is imminent.
Related: Neighbor Tree Disputes · Do I Need a Permit? · Emergency Removal