Summary:
Most people assume that if a tree is on their property, they can remove it whenever they want. In Smithtown, NY, that assumption has cost homeowners thousands of dollars in fines. The Town of Smithtown has had a formal tree preservation ordinance on the books since 1984, and it applies to private property — not just street trees or public land. Whether you’re planning a renovation, dealing with storm damage, or just have a tree that’s seen better days, understanding what the law actually requires can save you from a very expensive surprise. Here’s what you need to know.
Smithtown Tree Removal Laws: What Chapter 285 Actually Says
Chapter 285 of the Town of Smithtown Code — officially called the Tree Preservation and Land Clearing Ordinance — was adopted in October 1984 and has governed tree removal on private property ever since. It’s not a guideline. It’s a local law, and violations carry real financial consequences.
Under Chapter 285, a “tree” is defined as any living perennial woody plant with a trunk greater than three inches in diameter, measured three feet from the ground, and at least six feet in height. If a tree on your Smithtown property meets that description, it’s likely covered. Many homeowners are surprised to learn that relatively young or modest-sized trees can fall under the ordinance — it’s not just the towering oaks out front.
Smithtown takes its tree canopy seriously. The town has held Tree City USA designation from the Arbor Day Foundation since 1986 and has received the Arbor Day Foundation Growth Award every year since 2020. With more than 30,000 street trees in the town’s inventory, this isn’t just a formality — the town has a genuine, long-standing commitment to protecting its urban forest, and Chapter 285 is part of how that commitment is enforced.
Permit to Remove a Tree in Smithtown: Who Needs One and Who Doesn't
Here’s where most homeowners get confused — and where the ordinance has a nuance that almost no one talks about. If you own a residentially zoned parcel in Smithtown that cannot be further subdivided under the town’s Zoning Code, you are not required to obtain a permit to remove trees on that property. That exemption covers a meaningful portion of Smithtown’s residential lots, and it’s the first thing worth checking before you assume you need to go through the full permit process.
That said, the exemption has limits. It applies only to residential parcels that are not subdividable. If your property could theoretically be split into additional lots, the exemption likely doesn’t apply. Commercial properties, mixed-use parcels, and any land subject to further development are subject to the full permit requirement under Chapter 285. If you’re unsure which category your Smithtown property falls into, a quick call to the Town Clerk’s office — or a conversation with a certified arborist who knows Smithtown’s code — can give you a clear answer before you do anything.
For properties that do require a permit, the application process is more involved than most people expect. You’ll need to submit an original plus eleven conformed copies — twelve total — to the Town Clerk. The application must include a site plan drawn at a scale of not less than one inch equals one hundred feet, and that plan must be labeled “Tree Preservation and Land Clearing Plan.” Standard processing typically takes ten to twenty days. If you’re working against a construction timeline or dealing with a tree that poses an active hazard, that window matters.
One more thing worth knowing: dead or dying trees often qualify for expedited consideration or a waiver, but this typically requires documentation from a certified arborist. Simply telling the town the tree is dead isn’t enough. A written assessment from a credentialed professional carries the weight needed to move that process forward — and in genuine emergency situations, can sometimes result in same-day authorization.
What Are the Fines for Removing a Tree Without a Permit in Smithtown?
The fines are high enough that they’re worth taking seriously before you pick up a chainsaw. Across Suffolk County, failing to obtain a required tree removal permit can result in fines of up to $10,000. That’s not a worst-case outlier — it’s the documented upper range for permit violations in this region.
The other misconception worth addressing directly: the permit obligation rests with the property owner, not the tree company you hire. If a tree service removes a protected tree without a permit, you bear the liability — not them. A licensed tree company can do the physical work, but “licensed and insured” is a business credential. It doesn’t mean the company has verified your permit status or taken on your legal exposure. That distinction matters, and it’s one reason working with a certified arborist who handles permit paperwork directly is worth considering.
There’s also the question of what happens when a general contractor removes trees as part of a larger renovation or addition project. Tree permits under Chapter 285 are entirely separate from building permits. They’re filed with the Town Clerk, not the Building Department, and they require their own application and approval. Assuming your contractor is handling both is a common mistake — and an expensive one.
Tree Removal Regulations in Smithtown: Why a Certified Arborist Makes a Difference
Navigating the Smithtown tree ordinance is one thing. Understanding whether your tree actually needs to come down — and whether there’s a smarter, less disruptive path forward — is a different question entirely, and it’s where credentials matter.
A NYS Board Certified Arborist has passed a state-administered examination covering tree biology, disease identification, soil science, and pruning standards. That’s not the same as being licensed and insured, which is a business requirement, not a knowledge credential. The difference shows up in the quality of the assessment you receive — and in the credibility of any documentation that assessment produces when you’re navigating a permit process.
We’ve handled permit paperwork for homeowners across Smithtown, Huntington, Brookhaven, and other Suffolk County towns. We know what the applications require, what the town reviewers look for, and how to document a tree’s condition in a way that supports a clear, defensible outcome.
Can a Certified Arborist Help You Avoid Removing a Tree Altogether?
Sometimes the answer to a tree problem isn’t removal — and the only way to know that is to have someone actually qualified to make that call look at the tree. We’ve seen plenty of situations where a homeowner assumed a tree was dying and needed to come down, when what it actually needed was deep root fertilization, targeted disease treatment, or an organic intervention to address a pest infestation.
Long Island’s sandy glacial soil creates specific challenges for tree health that aren’t always obvious. Shallow root systems, poor nutrient retention, and the stress of coastal salt spray — especially for properties near the Sound or on the North Fork — can make trees look worse than they are. A tree that looks like it’s declining may be responding to soil conditions that are entirely treatable. That’s a meaningful distinction when the alternative is a permit process, a removal cost, and losing a mature tree that was adding real value to your property.
We’re also trained to identify the active threats that are spreading across Suffolk County right now — oak wilt, spotted lanternfly, and emerald ash borer among them. These aren’t abstract concerns. Spotted lanternfly has established itself on Long Island, and emerald ash borer has been working through the region’s ash tree population for years. Early identification changes the treatment options available to you. Catching these problems before they become irreversible is the difference between saving a tree and eventually having to remove it.
Where removal is genuinely the right call, we’ll tell you that honestly. There’s no sales quota driving our recommendations. Thomas Jones has been personally on every job since founding this business in 2014, and the assessment you get is his — not a crew member’s, not an estimator’s. What he tells you in the consultation is what you can count on when the work gets done.
Smithtown Homeowners Ask: What Does the Tree Ordinance Actually Cover on My Property?
This is the question we hear most often, and it’s worth answering directly. Chapter 285 covers trees on private property in Smithtown — not just the trees in the town right-of-way or along the street. If a tree on your lot meets the size threshold (trunk greater than three inches in diameter, measured three feet from the ground, at least six feet in height), it falls under the ordinance unless your property qualifies for the residential non-subdividable exemption described earlier.
The ordinance also intersects with Smithtown’s property maintenance requirements in a way that creates an interesting tension. Town code imposes an affirmative obligation on property owners to trim broken or decayed limbs, remove dead or dying trees, and address stumps or rootballs that pose a hazard near roadways or sidewalks. In other words, you may have a legal duty to act on a tree — and a simultaneous obligation to get a permit before you do. Understanding how those two requirements interact is exactly the kind of thing a certified arborist familiar with Smithtown’s code can help you work through.
One other area that comes up frequently: the New York State Department of Environmental Conservation is explicitly exempt from Smithtown’s permit requirement. The DEC can trim, prune, or remove trees under the Environmental Conservation Law without a local permit. That exemption does not extend to private property owners or private tree companies working on their behalf. If a DEC crew removed trees near your property line, that doesn’t mean the same work on your side of the line is permit-free.
Finally, if you’re on the North Fork, in the Hamptons, or on Shelter Island — all areas we serve — the same tree ordinance principles apply to your respective municipalities, each with their own chapter and application process. The underlying logic is consistent across Suffolk County, but the specific thresholds, fees, and exemptions vary by town. Getting that detail wrong is the kind of thing that turns a straightforward tree removal into a drawn-out, expensive dispute with your municipality.
Working Through the Smithtown Tree Ordinance Without the Headache
The Smithtown tree ordinance isn’t designed to make your life difficult — it’s designed to protect a tree canopy the town has been building and maintaining for decades. But the rules are real, the fines are significant, and the process has enough moving parts that getting it wrong is easier than most people expect.
The short version: know whether your property is exempt, understand what qualifies as a protected tree, don’t assume your contractor is handling the permit, and get a certified arborist involved before you make any decisions about removal. A proper assessment might confirm that removal is the right move — or it might show you a less disruptive path that saves the tree and skips the permit process entirely.
If you’re dealing with a tree situation in Smithtown and want a straight answer from someone who knows the local regulations, we offer free on-site consultations. Reach out by phone or text — (631) 334-2616 — and Thomas Jones will come take a look.