1. Confirm the protected-tree trigger
30 cm Use the exact municipal measurement method and protected-tree definition.
Municipal tree source checked
Reviewed Sep. 13, 2026Private/public scope checked against the municipal source
Tree removal rules in Toronto, ON
A plain-English guide to what Toronto publishes about tree removal and protection. The first question is whether the rule covers your private tree at all—not every City tree bylaw is a private-yard permit bylaw.
CITY-SPECIFIC SUMMARY
What Toronto actually regulates
Toronto’s published tree and bylaw rules, in plain English:
Private-tree threshold
Private-property trees 30 cm or more in diameter are protected. Toronto measures DBH at 1.4 m above ground.
City trees
Street trees are protected at any size; ownership should be confirmed before work.
Construction
Work inside a Tree Protection Zone can require a permit even when the tree is being retained.
2026 change
As of Sep. 1, 2026, Toronto added a Distinctive Tree category for healthy trees over 61 cm. The general private-tree threshold remains 30 cm; reducing it to 20 cm is a future study, not a current rule.
Regional context
Toronto applies its own municipal tree rules within Ontario. See the Ontario tree-rule overview for province-wide context; this page focuses on the ownership, diameter and site rules published for Toronto.
LOCAL QUICK READ
Toronto at a glance
These are the main signals in the Toronto municipal source: who the rule covers, whether a permit path is identified, any published diameter signal, and extra requirements that can change the answer.
Rule scopePrivate-tree rules are identified in the municipal source
Permit signalA permit or authorization process is identified
Diameter numbers found30 cm
Extra requirements namedConstruction / root-zone rules, Development / protected-area rules, Boundary / ownership issue
LOCAL DECISION PATH
What to verify before removing a tree in Toronto
Toronto publishes private-tree controls, so the first job is to identify whether this specific tree is protected before booking removal.
2. Separate private, public and boundary trees
The Toronto source identifies private-tree rules; boulevard, City-owned and shared-boundary trees can follow a different process.
3. Check construction impacts
In Toronto, development or root-zone work can trigger protection requirements even when the trunk is intended to remain standing.
General guidance lives separately
For general tree-law concepts, use these guides:
Public vs. private trees · Construction near trees · Tree-removal permits ·CONSTRUCTION NEAR TREES
Construction and tree protection in Toronto
Toronto’s local material identifies development, construction or tree-protection-zone issues. Before excavation, grading, a driveway, utility trench, retaining wall, pool or building work near a tree, check whether the municipal rule treats root/soil disturbance as regulated injury.
Private tree
Local source detailToronto protects private-property trees with a diameter of 30 cm or more and requires a permit before a protected tree is injured or removed, unless a listed exception applies.
Open Toronto’s rule ↗City / boulevard tree
Do not self-authorizeIf the trunk is on Toronto municipal land, a boulevard or road allowance, do not self-authorize pruning or removal. Confirm ownership and use the municipality’s tree process.
Check ownership rules ↗Boundary tree
Local source detailThe City separates private trees, City trees and ravine-protected areas; the correct permit path depends on ownership/location as well as tree size.
Check local application rules ↗Development site
Local source detailConstruction inside a protected tree's Tree Protection Zone can also trigger a tree permit even when the tree itself is intended to remain.
Check development-tree rules ↗SOURCE TRACE
What we verified for Toronto
Private-tree regulation is identified in the Toronto source. Primary source checked September 13, 2026. This page keeps that local rule separate from general arborist advice and does not import another city’s threshold.
Open primary Toronto source ↗How Tree Rules Canada fact-checks pages →OFFICIAL LINKS
Go straight to Toronto
Use Toronto’s current municipal source before booking removal or construction near a tree. That source controls the current threshold, exceptions, forms, fees and any replacement conditions.
Toronto tree sources checked September 13, 2026. Re-check the linked municipality for current fees, protected-tree definitions and permit steps; Tree Rules Canada is independent.