Of the six other tree service websites we’ve reviewed serving Islip, not one of them explains the actual permit and consent rules that apply before you cut down a tree here. That’s a real gap, because the question comes up constantly — and getting it wrong isn’t just a paperwork problem, it can mean a code violation, a stalled project, or a dispute with a neighbor over a tree that wasn’t yours to remove. Here’s what we know, explained plainly, with the caveat that you should always confirm specifics with the Town directly for your exact situation since municipal code details can change.
Written Owner Consent Is Required Before Any Tree Is Cut
Under Town of Islip Town Code Chapter 57, no one is permitted to cut, damage, or remove any tree — living or dead, standing or already downed, on public or private property — without the prior written consent of the property owner. That consent has to be available to show code enforcement on demand. This rule exists specifically because unauthorized tree removal is a real, recurring problem: contractors removing trees without proper authorization, neighbors disputing who actually had the right to take a tree down, and disputes over trees near a property line where ownership wasn’t actually clear. If you’re hiring a tree service, make sure the paperwork reflects that you, the owner, have authorized the specific work being done — not just a verbal go-ahead.
When a Permit Is Likely Required
Generally, smaller trees — typically those under about 6 inches in trunk diameter — can be removed without a separate permit beyond standard owner consent. Larger trees, trees in protected or wetland-adjacent areas, and any project involving clearing of multiple trees at once typically require approval through the Town of Islip Planning Division before work begins. Land-clearing applications generally need to include a survey map or scaled drawing showing exactly which areas and which trees are involved, along with copies of any permits required by other agencies, including the NYS DEC where wetlands or protected species are involved.
Separate Permits for Work in the Town Right-of-Way
If tree work extends into the Town’s right-of-way — the strip of land along a road that the Town controls even though it may look like part of your yard — that typically requires its own right-of-way work permit, separate from a standard property removal. This comes up more often than people expect, especially for trees near the curb or close to a street corner.
Who to Contact
For permit questions and land-clearing applications, the Town of Islip Planning Division handles the process. For general issues — storm damage, downed trees, or right-of-way concerns — the Department of Public Works can be reached at (631) 224-5600. We’d rather tell you to make that call when your situation is genuinely ambiguous than guess on your behalf.
How We Handle This for You
During your on-site assessment, we’ll tell you plainly if your project looks like it needs Town approval before we schedule anything — we’re not going to start a job that could put you in violation of Town Code just to get the work booked faster. For larger removals or land-clearing projects, we can walk you through what the Planning Division application typically requires, though the final permit determination always comes from the Town, not from us.
Do I need a permit to remove a tree in Islip?
It depends on the tree’s size and location. Smaller trees, generally under about 6 inches in diameter, typically don’t require a separate permit beyond written owner consent. Larger trees, those in protected or wetland-adjacent areas, or multi-tree land-clearing projects generally require approval through the Town of Islip Planning Division.
What happens if a tree is removed without proper consent or a required permit?
It can result in a Town Code violation, and in disputes between neighbors, it can become a liability question over who authorized the work. Written owner consent should be available to show code enforcement on request, which is one more reason to keep your paperwork in order before any cutting starts.
Does removing a dead tree on my own property still require consent or a permit?
Yes — Town Code’s written-consent requirement applies to living and dead trees alike. A tree being dead doesn’t exempt it from the same consent and, depending on size and location, permit requirements that apply to any other tree on the property.
If you’re not sure whether your project needs Town approval, call us at (631) 663-7940 and we’ll help you figure out the right next step before any work begins.