When do I need a Toronto tree permit?

Toronto regulates trees through three layered chapters of the Municipal Code: Chapter 813 (private trees), Chapter 658 (ravine trees), and Chapter 608 (parks and street trees, City-owned). Under Article III of Chapter 813, any privately owned tree measuring 30 cm in diameter at breast height (DBH, measured 1.4 m above grade) or larger requires a permit before removal, injury, or substantial pruning. Construction inside the drip line — calculated as the radial extent of the canopy — also triggers a tree-protection zone, fencing, and an arborist-supervised root-protection plan whether the tree is being kept or removed.

For renovations, the practical impact is that any addition, foundation excavation, drain replacement, driveway change, or pool install within roughly 6 to 10 metres of a mature tree will pull Urban Forestry into your permit review. Required submissions include an ISA-certified arborist report with a tree inventory, condition rating, and protection details; a site plan with the tree-protection fence at 1.2 m height anchored outside the drip line; and a tree-replacement plan when removal is approved (replacement at 1:1 to 3:1 by canopy area). Fees are CAD 411 per private tree permit application plus per-tree review charges; review takes 4 to 10 weeks, longer if neighbours object during the 14-day notice period.

City-owned street and park trees fall under Chapter 608 — even pruning a single branch that overhangs a street tree requires a separate permit and a refundable security deposit ranging CAD 350 to 9,500 by tree size. The penalty regime is serious: section 813-30 authorizes fines up to CAD 100,000 per tree for unpermitted destruction, with a separate offence for each tree, and the City has prosecuted homeowners and contractors aggressively. Schedule an arborist site visit before site plans are stamped — a missed protection zone reshapes basement excavations, foundation underpinning, and grading every time.