Illinois Tree Laws (2026): What Actually Matters to You
Most people don’t think much about trees until something goes wrong. Then they find out that Illinois has some pretty specific rules about what you can and can’t do with them. The good news? It’s not as complicated as you might think.
Here’s the thing: whether you’re trimming branches in your yard or dealing with a tree from a neighbor’s property, knowing these laws can save you money and headaches. Let’s break down what you actually need to know.
What Are Illinois Tree Laws?
Think of tree laws like property boundaries, but for the green stuff in your yard. They’re rules that protect trees, define who’s responsible for them, and say what you can do with them.
These laws exist for a few reasons. They protect trees that are important to the environment. They also prevent disputes between neighbors. And honestly, they keep people from destroying trees just because they feel like it.
In Illinois, there’s no single “tree law.” Instead, the rules come from state statutes, local ordinances, and sometimes even county rules. Sound complicated? It’s actually pretty straightforward once you know what to look for.
Who Owns the Tree? That’s the Key Question
Not sure what counts as your responsibility? Here’s the basic rule: if a tree is rooted on your property, it’s yours. You own it. You maintain it. You’re liable if it causes damage.
But here’s where it gets interesting. If a neighbor’s tree has branches hanging over into your yard, you have some rights. You can trim those branches back to your property line. You can’t go onto their property to do it, though. And you can’t damage the tree itself in a way that kills it.
What about roots? They work the same way. If tree roots from a neighbor’s property damage your foundation or pipes, you might have a legal claim. But most people don’t realize this is even an option.
Basic Tree Cutting Laws in Illinois
You can cut down a tree on your own property. That’s the simple answer. But wait, there are some exceptions that matter.
Many Illinois towns and cities have local tree ordinances. These rules vary by location. Some cities require a permit to remove a tree. Others only require permits for trees over a certain size. A few places protect specific tree types like oaks or elms.
This is important: just because you own the property doesn’t mean you can cut anything. Check with your city or village first. A quick call to your local building department takes five minutes. Trust me, it’s worth it.
Some areas require you to replace a tree you’ve cut down. Others require you to pay a fee if you remove a tree without permission. The penalties depend on where you live.
Private Property Tree Removal
Here’s the good news: you have the right to maintain your trees. That includes removing dead, diseased, or dangerous trees. Most places don’t require a permit for this.
The key word is “dangerous.” A tree that’s clearly dying, rotting, or leaning hard toward your house usually doesn’t need a permit to remove. But you’ll want to document why it’s dangerous. Take photos. Get an arborist’s report if possible.
Sound like overkill? Not really. If someone challenges the removal later, you’ll have proof that it was necessary. Plus, some insurance companies want documentation before you remove a tree.
Normal tree trimming is totally fine. You can prune branches. You can thin out the crown. You can clear branches away from your roof and gutters. These basic maintenance activities don’t usually require permits.
But if you’re removing more than 25 percent of the tree in one year, that might be considered damage in some areas. Check your local rules to be safe.
Trees on Public Land and Parkways
Here’s where you need to be extra careful. Trees in public parks? They’re off-limits. Don’t cut them, don’t trim them, don’t damage them. Seriously.
Trees in the parkway between the street and sidewalk can be tricky. Sometimes the city owns them. Sometimes you do. It depends on your local ordinance. If you’re not 100 percent sure, ask your city before doing anything.
In Illinois, the city usually maintains trees on public property. But the homeowner sometimes has to pay for it. It’s weird, right? That’s why it’s important to know your specific local rules.
Removing a city tree without permission can cost you. We’re talking hundreds or even thousands of dollars in fines. Plus you’d have to pay for replacement planting. Don’t do this.
The Neighbor Tree Situation
Okay, pause. This part comes up a lot, and it causes real problems. What happens when a neighbor’s tree is causing issues on your property?
Let’s say branches are hanging over your roof. You can trim them back to the property line. Cut them off at the boundary. But here’s the important part: you can’t go onto their property to do it. And you can’t do anything that would damage or kill the tree.
Roots pushing up your driveway? That’s trickier. You can cut roots on your property. But cutting roots deep into the trunk area might kill the tree, which could make you liable for damages. This is where you might want to talk to a lawyer or arborist first.
Dead or diseased trees that lean into your yard? Even if they’re not your responsibility, you might need to talk to your neighbor. Most people are reasonable about this. They don’t want a dead tree either.
If your neighbor refuses to deal with a dangerous tree, you have options. You can report it to the city if it’s a hazard. You can file a civil claim. You might even be able to cut it down if it’s an immediate danger, but you’d better have good documentation first.
Tree Damage and Liability
Here’s something most people get wrong. If a tree from your property damages a neighbor’s house, you might be liable. Maybe. It depends on the situation.
Think of it like this: if you knew the tree was dangerous and didn’t do anything about it, you’re probably liable. But if it was a healthy tree that fell in a storm, you’re probably not. Nature happens.
The key is whether you knew or should have known there was a problem. A dead tree leaning toward their fence? You probably should have done something. A healthy tree that snapped in a windstorm? That’s usually considered an act of nature.This is why homeowners insurance matters. It usually covers damage from trees on your property, with some exceptions. Check your policy.
Municipal Tree Ordinances
Different cities have different rules. In some places, you can cut down almost any tree on your property. In others, you need a permit for almost everything.
Chicago has pretty strict tree rules. You need a permit to remove most trees. Trees under 6 inches in diameter are sometimes exempt, but don’t assume. The penalties for unpermitted removal are serious.
Suburban communities vary wildly. Some require permits only for trees over 20 inches in diameter. Others protect specific native species. A few places have heritage tree lists where certain old or rare trees are protected.
This is why you absolutely need to check your specific location. Seriously, spend five minutes on your city’s website or call your local building department. One phone call beats dealing with a fine later.
Arborist Reports and Expert Opinions
When should you get a professional involved? If you’re unsure about whether a tree is safe, get an arborist’s report. These professionals can determine if a tree is actually dangerous or just looks scary.
An arborist can document the tree’s health. They can take photos. They can write a report that covers you legally if someone questions the removal later. This costs money, sure. But it might save you thousands in disputes or fines.
For most trees in your yard, you don’t need this. But for big trees near structures, near the property line, or in areas with strict tree ordinances, it’s worth the investment. A professional report is basically insurance that you did the right thing.
Environmental Protections for Specific Trees
Illinois protects certain tree species in specific areas. The Woodland Law, for example, protects native woodlands. If you have 2 acres or more of woodland on your property, there are rules about what you can cut.
But here’s the real talk: most residential yards aren’t big enough to qualify as protected woodland. Unless you have a substantial wooded area, this probably doesn’t affect you.
Some native trees are protected in certain counties or municipalities. Oaks, hickories, and walnuts sometimes get extra protection. Always check with your local forestry or natural resources department if you have a big native tree you want to remove.
What About Tree Trimming Near Utilities?
If you’re trimming branches near power lines, stop and call the utility company first. This is dangerous and illegal without permission.
The utility company (like ComEd in most of Illinois) has the right and responsibility to trim trees near their lines. Let them handle it. You don’t want to mess with electricity lines. Trust me on this one.
Same goes for tree removal near utilities. Call your utility company before you cut anything that might affect their lines or equipment. They’ll usually do the work for free if it’s necessary for safety or maintenance.
Step by Step: What to Do Before Cutting a Tree
Okay, here’s where things get practical. You want to remove a tree or trim it significantly. What do you actually do?
First, check if you need a permit. Call your city or village building department. Tell them what you want to do. Ask if a permit is required. This takes one phone call.
Second, if it’s a big tree or you’re unsure about its safety, get an arborist to look at it. They’ll give you a report. Problem solved, basically.
Third, if you hire a company, make sure they’re licensed and insured. A legitimate tree service carries liability insurance. They also carry a business license. This protects you if something goes wrong.
Fourth, do the work. Or have professionals do it. Either way, keep records and photos. File those away just in case.
Fifth, if a permit was required, make sure to close it out with your city when the work is done.
Sound complicated? It’s really just five simple steps. Most of it is just talking to people and asking questions.
Common Mistakes People Make
Many people cut down trees without checking local rules first. Then they get surprise fines. Don’t be that person.
Some people assume that owning property means you can do whatever you want to trees on it. Not always true. Check your local ordinances first.
Other people damage neighbors’ trees trying to solve a problem themselves. Then they end up in disputes or small claims court. Talk to your neighbor. Work it out. It’s faster and cheaper than fighting about it.
A lot of people wait too long to deal with a dangerous tree. Then it falls and causes real damage. If you think a tree is dying or dangerous, deal with it soon.
Fines and Penalties for Violations
In Illinois, tree law violations can be expensive. Really expensive. The fines vary by location, but here’s what you should know.
Cutting down a protected tree without a permit can cost anywhere from $500 to several thousand dollars. Some cities fine you per day that the violation continues. Add in the cost of replacing the tree, and you’re looking at serious money.
If a tree violation causes damage to public property or injures someone, the penalties get worse. You could face criminal charges in extreme cases. This isn’t something to mess around with.
The best part? These penalties are actually pretty easy to avoid. Just check the rules first. Ask questions. Get a permit if you need one. Done.
Frequently Asked Questions
Can I trim branches hanging over my property line? Yes, you can trim them back to the property line. You can’t go onto the neighbor’s property, and you can’t damage the tree itself in a way that kills it.
What if a tree on my property damages my neighbor’s house? It depends on whether you knew the tree was dangerous. If it was healthy and fell in a storm, you’re probably not liable. If it was dead and you knew about it, you might be liable.
Do I need a permit to trim my own tree? Maybe. Check with your city first. Many places don’t require permits for routine trimming, but some do.
What’s the penalty for cutting down a tree without a permit? Fines range from a few hundred to several thousand dollars, depending on your location and the tree’s size. You might also have to pay for replacement planting.
Who’s responsible for tree roots damaging my foundation? This is complicated. If the roots belonged to a healthy tree, the neighbor might not be liable. If they knew the tree was causing damage and did nothing, they might be liable. Consider talking to a lawyer.
Can the city force me to remove a tree on my property? Only if the tree is dangerous or diseased and poses a public hazard. The city would usually give you a chance to handle it first.
What should I do if I’m unsure about removing a tree? Call your local building department. Get an arborist’s assessment if it’s a big tree. Better safe than sorry.
Final Thoughts
Illinois tree laws aren’t meant to make your life difficult. They’re there to protect trees and prevent disputes. The good news? They’re pretty reasonable once you understand them.
The simple rule: check your local ordinances before doing anything major with a tree. One phone call to your city answers most questions. If there’s still doubt, get a professional opinion. It costs less than dealing with fines or neighbor conflicts later.
Trees are part of what makes neighborhoods nice. Protecting them also protects your property value and your quality of life. So take a few minutes, ask the right questions, and you’ll be fine.
Now you know the basics. Stay informed, respect your neighbors’ property, and when in doubt, ask a lawyer or your local government. You’ve got this.
References
Illinois Department of Natural Resources – Forestry
City of Chicago Tree Ordinance
Illinois Woodland Law Overview