"Do I need a permit to take this tree down?" is one of the most common questions we get — and one of the most commonly answered wrong online. The honest answer is: it depends on exactly where you live, how big the tree is, and where it sits on your property. Here's how to figure it out without guessing.
By-laws change. Nothing on this page replaces confirmation from your municipality. We flag likely permit situations during every free assessment, but the final word always comes from the City.
Who actually regulates your tree?
Three different bodies can have a say, and more than one can apply to the same tree:
- Your municipality — through a private tree or tree protection by-law covering trees on private property.
- The conservation authority — Hamilton Conservation Authority or Niagara Peninsula Conservation Authority, where the property is near a watercourse, wetland, or the escarpment.
- The Niagara Escarpment Commission — for properties inside the Niagara Escarpment Plan area, which covers a large part of the Hamilton mountain brow, Dundas, and Ancaster.
The rules by area
Hamilton (former City of Hamilton, Stoney Creek, Glanbrook)
Private-property trees are covered by the City of Hamilton's tree by-laws. Whether a permit is required depends on the tree's size, location, and whether the property sits in a protected or woodland area. Confirm with the City before any removal.
Ancaster, Dundas, Flamborough
These are amalgamated Hamilton communities, so City of Hamilton by-laws apply. Larger rural and escarpment lots are more likely to fall under woodland protection rules, which can also involve the Hamilton Conservation Authority.
Burlington
Burlington is a separate municipality with its own private tree by-law. Its rules differ from Hamilton's, and permit requirements are generally tied to trunk diameter. Check with the City of Burlington directly.
Grimsby, Caledonia, Waterdown and surrounding areas
Requirements vary by municipality and by county. Some have private tree by-laws, others only regulate woodlands. Always confirm with the local municipal office before booking a removal.
What usually triggers a permit
Across almost every local by-law, the same handful of situations raise the odds you'll need approval before the saw comes out:
- The trunk is large — diameter thresholds are the most common trigger.
- The tree is part of a woodland or treed area rather than a single yard tree.
- The property is on or near the escarpment, a ravine, or a watercourse.
- The tree is a designated heritage, memorial, or boundary tree.
- The tree stands on the City road allowance — even if it looks like it's on your lawn.
- Removal is tied to development, a new build, or a site plan application.
Street trees are not your tree
The strip of grass between the sidewalk and the curb — and often a few feet past the sidewalk — is City property. Trees there belong to the City of Hamilton's Forestry department, and no private contractor can legally remove or heavily prune them. If a boulevard tree is damaged, dead, or dropping limbs, report it to the City rather than hiring anyone.
What about dead, dying, or storm-damaged trees?
Most by-laws include exemptions or expedited handling for trees that are dead, hazardous, or an imminent danger to people and property. That does not mean "no paperwork" — it usually means the City wants documentation, photos, or an arborist's assessment. In a genuine emergency, make the site safe first, then sort out the paperwork. We document every emergency job with photos and written notes so you have a record.
What to do before you book a removal
- Measure the trunk diameter at roughly chest height (about 1.4 m off the ground).
- Confirm the tree is on your property, not the road allowance — check your survey.
- Call or email your municipality with the address, species, size, and reason.
- If a permit is required, apply before scheduling the work.
- Book a licensed, insured crew and keep the permit on file.
Removing a protected tree without approval can lead to significant fines and replanting orders, so the phone call is always worth making.
How we help
During a free on-site assessment, Jamie measures the tree, identifies the species, checks its position relative to the property line, and tells you honestly whether a permit is likely. If the City needs an arborist's opinion in writing, we can provide it.