14 Arbor Age / September 2014 www.arborage.com
PLANT HEALTH CAREPLANT HEALTH CARE
On any given day, arborists throughout the country are
unwittingly dragged into neighborly confl icts. Trees are almost
universally praised for the benefi ts and beauty they bring to
the neighborhood. On the other hand, that same tree is al-
most universally damned when it bothers one neighbor but
is owned by another. It’s not uncommon for a pruning crew
to be requested to “show up on Thursday when I know my
neighbor will be gone” or give advice as to whether or not
this guy’s branches can be pruned back to improve their views.
So, what can you tell your client, and what should you be
practicing to keep yourself out of a lawsuit as well? Let’s take a
look at some common “frequently asked questions” arborists
get about trees, their neighbors, and the law.
Full legal disclaimer: These are the “general rules of thumb”
around the country, but, of course, there are local laws and ordinances
that will supersede these. Always get to know your local laws by con-
tacting the municipal forester or through your local ISA Chapter. I
also found the real estate industry to be very helpful when researching
this article, as it turns out trees and their ownership come up frequently
when purchasing property.
Is this my tree or the city’s tree?
Local ordinances will determine which trees are considered
public and which are private. Trees in parks and on other public
grounds are certainly considered the city’s responsibility, but it
Trees and
Neighbors
Or,
some good advice so you
and your client don’t get sued
By Brandon
Gallagher Watson
Damage caused by a hazard tree may be the owners responsibility.
Determing public or private trees may vary by city.
AND THE LAW
www.arborage.com Arbor Age / September 2014 15
varies greatly as to what boulevard trees are considered public.
Some include only trees on the street-side of the sidewalk; others
include all trees within fi fteen feet of the boulevard, even if that
tree is in the middle of someone’s yard. If the tree is determined
to be the city’s, pruning and removal is the onus of the munici-
pality, and requests for this maintenance can be submitted to the
city forester. You may also need the city’s permission if you wish
to have it serviced or removed by an arborist. The city, however,
does not need the homeowner’s permission to perform pruning
or removal on a public-owned tree.
My neighbor’s branches hang over into my yard; can
I prune them back?
Yes. Legally, you have the right to prune branches and limbs
that extend past the property line. However, the law only al-
lows tree trimming and tree cutting up to the property line.
In most areas, permission is not needed by the neighbor to do
this, but a good practice would be to have the neighbors in
communication with each other. As the arborist, you may not
go onto the neighbor’s property without permission or do any
practices that may destroy the tree. If you do harm the tree,
you and the homeowner could be found liable for up to three
times the value of the tree.
A large tree hangs over my yard, but the trunk is in
the neighbor’s yard. Is this my tree or theirs?
This is a common issue in urban areas, and is a frequent
cause of disputes among neighbors. In this case, even if nearly
100 percent of the canopy is over your yard but the trunk is
clearly in the neighbor’s yard, the tree belongs to the neighbor.
If you wish to prune back the branches to the property line,
that falls under the same rules as above.
There is a tree directly on the property line between
my house and my neighbors, who is responsible for
this tree?
When the trunk is directly on the property line owned by
two or more people, it is referred to as a “boundary tree. In
the case of a “boundary tree, all of the property owners own
the tree and share responsibility for it. Any pruning or tree
removal requires consent of all the tree’s owners.
The leaves from my neighbor’s tree keep blowing
into my yard, is it their responsibility to rake them up?
Nope. We all wish this were the case, but leaves are con-
sidered a natural product. Even if the leaves cause damage,
like clogging your gutters or pipes, you have no legal claims
against the owner of the tree. Additionally, you are responsible
for cleaning up any natural products that fall into your yard.
If, however, the tree branches that are shedding the leaves
are hanging over your yard, or the tree trunk is encroaching
on your property, then you have a right to trim those branches
up to the property line, but it is still not their responsibility to
clean up fallen branches.
All photos provided by Rainbow Treecare Scientifi c Advancements
Trees can be pruned to property line. Always get permission to
go on neighbors property.
This tree was a boundry tree and paid for by both homeowners.
16 Arbor Age / September 2014 www.arborage.com
PLANT HEALTH CAREPLANT HEALTH CARE
If my neighbor owns a fruit tree, and the
branches hang over into my property, can I eat
the fruit?
No. The fruit of the tree belongs to the owner of the
tree even if the fruit hangs into your yard, so don’t pick
any of the fruit without permission. Rules about fallen
fruit, however, vary across the country, so check your
local laws to see if you can eat any fruit that falls off the
tree. Oddly, if the fallen fruit is considered a nuisance to
you, it is considered a natural product, no different than
leaves, and thus it is not their responsibility to clean it up.
My neighbor did construction in their yard,
and in the process killed a tree that’s just on my
side of the property line. Can I get compensated
for my loss?
In most cases, yes, the tree owner has the right to
sue for damages. Anyone who engages in tree removal,
tree cutting, or injury to the tree without the owner’s
permission is liable for compensating the tree owner.
In many cases, the tree owner has been compensated
by up to three times the value of the tree. We know, of
course, that construction damage can take several years
to really start to show up. This often lands arborists in
court as an expert witness to help show work done in
the past is what caused a tree to die recently.
A storm knocked down my neighbor’s tree
onto my property, causing damage. Are they re-
sponsible for the damages?
In this case, it depends. If the dispute got all the way
to court, the judge will probably apply a reasonable
care standard. If your neighbor took reasonable care
to maintain the tree, and the tree did not seem to a
reasonable person to be threatening to fall, then they
will probably not be held responsible. If a reasonable
person could not have avoided this from happening in
any way, then it will be deemed an “Act of God, and
the neighbor will not be liable.
If, after applying this reasonable care standard, how-
ever, the judge fi nds that a reasonable person should have
known that the tree branch posed a danger of falling,
or that the neighbor never did reasonable inspections
to maintain the tree branch, then the neighbor could
be found liable of negligence, and therefore responsible
for damages to your property. This can also get arborists
in trouble if they recently performed a reasonable in-
spection and did not determine the tree to be a hazard.
Always document your inspections, as you may be called
in later to justify your fi ndings.
The tree that caused damage was a public
tree; is the city responsible for damages?
If you were walking though a public domain, such
The property owner may have to compensate the neighbor if construction
damages their trees.
www.arborage.com Arbor Age / September 2014 17
a case where you are not completely comfortable with the local
laws and ordinances, do not perform any service until you know
exactly what you can or cannot do. Waiting a week to perform
work while you wait for the neighbors to come to an agreement
is much better than spending a week in court.
Brandon Gallagher Watson is creative director at Rainbow Treecare
Scientifi c Advancements, and is an ISA Certifi ed Arborist (#MN-
4086A).
Additional Resources
Tree Owner’s Rights and Responsibilities (University of
Tennessee)
https://utextension.tennessee.edu/publications/Documents/
SP687.pdf
Trees and Neighbor Law
http://stores.treeandneighborlaw.com/
How to Recognize Hazard Trees (USDA Forest Service)
http://www.na.fs.fed.us/spfo/pubs/uf/sotuf/chapter_3/
appendix_b/appendixb.htm
as a park or a street, and you were injured by a failing tree, you
may have grounds for a tort claim. Tort is a term derived from
the Latin term torquere, meaning twisted or wronged. Tort law
dates back to Medieval England and, while tort covers many
different types of laws, they are commonly used in the United
States as legal means of holding a public entity, such as a mu-
nicipality, responsible for damages that occurred due to the
municipality’s negligence with regard to maintaining the safety
of their public trees.
Tort claims can mean big dollars paid out by the munici-
palities. In New York’s Central Park, several recent tree-related
events have resulted in signifi cant settlements. In 2009, a father
of two was injured when a large rotted tree branch fell and
struck him in the head in Central Park. The case was settled
later that year for $11.5 million. Just three months after that,
another man was killed by a failing American elm, resulting
the city paying $3 million to his family. In both cases, the suits
claimed that the City of New York and the Central Park Con-
servancy were negligent, and should have properly inspected
and maintained the park trees. The Parks Department has
less than 100 climbers and pruners for more than 2.6 million
trees, so the expectation that each and every tree is structurally
sound is absurd, but the city is still held to this standard.
My neighbor’s tree looks like it’s going to fall on
my house. What should I do?
Homeowners are responsible for maintaining the trees
on their property. Legally, they have two duties: make
reasonable inspections and take care to ensure the tree is
safe. Therefore, if a reasonable inspection by an arborist
shows that the tree could be dangerous, your neighbor is
responsible for the tree removal. If your neighbor does
not remove the dangerous tree, and the tree does in fact
cause damage, your neighbor can be held liable.
If you have spoken to your neighbor about the tree, and
they have not done anything about it, the tree may consti-
tute a nuisance. You could fi le a nuisance claim, and if the
court sides with you, they can order the tree removed by
its owner.
My neighbors complain that the tree in my yard is
blocking their vista view; do I have to trim it?
Usually, no. So long as the tree is not posing a safety hazard,
there are not normally laws that protect a person’s view. Certain
communities or homeowner associations, however, may have
height limits or view ordinances that may make you responsible
for keeping the trees short. If there are no legal guidelines for
tree height, talking with the neighbor about how much they
would like the tree reduced by and getting them to pay, or at
least split, the pruning costs may help resolve it.
Your clients will often look to you, as the arborist, to be the
legal expert as to what they can or can’t do with a disputed tree.
We are, however, tree experts and not lawyers. If there is ever