When You Need a Permit - Toronto
A street tree of any size. These trees are protected under Street Tree Protection By-law .
A private tree with a diameter of 30 cm or more. These trees are protected under Private Tree By-law .
Any vegetation and any tree located in an area regulated under Ravine and Natural Feature Protection By-law
When You Need a Permit - Mississauga
You only need a permit to remove trees on your private property if you are removing three or more trees 15 cm (6 inches) or greater in diameter, including dead and/or dying trees, per calendar year.