Mississauga Tree Removal Permit: When You Need One, What It Costs, and When Pruning Skips It

When you actually need a permit in Mississauga

Mississauga protects private trees under its Private Tree Protection By-law, By-law 0021-2022. The trigger is size. Any privately owned tree measuring 15 cm (about 6 inches) or more across the trunk is protected, and you need a permit before you remove it.

That number matters more than people expect. Mississauga's 15 cm line is half of Toronto's 30 cm threshold, so a tree that would be fair game one city over is protected here. If you are coming from our Toronto permit guide, do not carry the 30 cm number across the border. Neighbouring Oakville sets the same 15 cm bar, and stacks a stricter replacement-tree rule on top, so the line is consistent across the western GTA even though Toronto's runs higher. Nearby Burlington lands at 20 cm, just above the 15 cm towns. Measure your own tree first.

If a tree clears 15 cm, the process looks like this:

• You need a permit to remove or injure it. The bylaw does not only cover cutting a tree down. Heavy work that damages a protected tree counts too.
• The city reviews your application. Routine residential removals do not always need a full arborist report, but the city decides what it needs to see.
• A replacement condition usually applies. Take one down and you plant one or more back.
• It takes time. Budget several weeks, not several days.

Quick check before you book anyone: wrap a tape measure around the trunk. If the diameter is anywhere near 15 cm, assume it is protected until the city tells you otherwise. Guessing low is how people end up on the wrong side of a fine.

What the permit costs you, in money and in time

There are two costs here, and both sit on top of the tree work itself. There is the city application fee, and there is your time waiting on the review.

The fees are public. The City of Mississauga charges $399.77 (including HST) for the first tree on an application, and $139.72 (including HST) for each additional healthy tree. Those are the 2026 figures off the city's own permit page, and they tend to nudge up each year, so confirm the current number when you apply.

One thing in your favour: if the tree is genuinely dead or dying, there is no application fee. You still have to apply and let the city confirm it, but you are not paying the fee for a tree that is already gone.

Then there is the replacement rule. The city generally wants one replacement tree for every 15 cm of trunk diameter you remove, planted as a native, shade-bearing species (at least 1.8 m tall for an evergreen, or at least 6 cm in diameter for a deciduous tree). On a big mature tree that can mean several new trees on your lot, so factor that in before you commit to a removal.

On time: the city gives itself 30 business days to review a complete application. That is the floor, not a promise. In busy season, or if the file comes back needing more detail, it stretches. If you are hoping to have a tree down by next weekend, the permit math usually does not work.

What happens if you skip it

Removing a protected tree without a permit is an offence under By-law 0021-2022. The city can lay charges, and the penalties run into the thousands of dollars per tree, on top of an order to replant what you took down. The fine dwarfs the permit fee every time.

And it is not a quiet rule. A fresh stump on a mature front-yard tree is obvious from the street, neighbours do report it, and the city does follow up. The contractor who tells you not to bother with the permit is the contractor leaving you holding the charge, because the property owner is the one the bylaw holds responsible, not the crew that did the cutting.

The honest math is simple. The permit and the wait are an annoyance. The fine plus forced replanting is a real financial hit. If a tree genuinely has to come down, do it through the process.

The part most homeowners miss: you might not need a removal at all

Here is the thing the search query hides. People look up the Mississauga tree removal permit because they have a problem they want gone. A limb hanging over the roof. A tree that has outgrown its corner. Shade swallowing the back garden. Removal is one way to solve that. It is often the wrong one.

A lot of those problems are pruning problems, not removal problems. A crown reduction brings a too-big tree back into proportion. Clearing a few limbs opens up light and gets weight off the house. Take down the one bad limb over the driveway and the hazard is gone. The tree stays, the bylaw stays happy, and in many cases there is no removal permit to chase at all. If you do prune instead, doing it in the right season helps the tree heal cleanly, which our guide on when to prune trees in southern Ontario walks through.

One honest caveat, because the bylaw is specific: By-law 0021-2022 covers injuring a protected tree, not just removing it. Light, routine maintenance pruning on a healthy tree is normally fine, but significant cuts on a 15 cm tree can still need sign-off. That is exactly the kind of thing we check for your specific tree before any work starts, so you are never guessing.

So before you budget for a removal and a permit, it is worth asking whether the actual goal is a smaller, safer, tidier tree. Most of the time, it is.

How we handle protected trees on a Mississauga job

We do two things: tree pruning and limb removal. Full tree removal is not something we offer yet, so we are not the crew that talks you into taking a tree down. If anything, we are the opposite.

When we look at a job, the first step is the tape measure. We tell you whether your tree is over the 15 cm line, whether the work you want counts as injuring a protected tree, and whether a permit is in play. If pruning or a single limb removal solves the problem and keeps you clear of the permit process, that is what we recommend.

If the tree genuinely needs to come out, we will say so plainly and point you to the City of Mississauga permit process and a removal company. We would rather lose that job than put you in a bad spot with the bylaw.

If you want a straight read on whether your work needs a Mississauga tree removal permit, or whether pruning quietly solves the whole thing, get in touch. We are owner-led and by appointment, working across Mississauga and the wider south Ontario service area. We will tell you what we see, no pressure either way.