FAQ
Tree Care & Municipal Permit FAQs
Straight answers from ISA Certified Arborists working in Durham Region and the east GTA every day.
Municipal permit thresholds at a glance
Pickering
Private trees 30 cm DBH or greater on most residential lots
Pickering's Tree Protection By-law regulates the injury or destruction of protected private trees. Applications require a site plan and, for larger or contested trees, an arborist report. Replacement planting is typically required.
Ajax
Private trees generally 20 cm DBH or greater
The Town of Ajax private tree by-law protects mature trees on private property. Permit applications include tree location, species, DBH, and a stated reason for removal. Dead or hazardous trees may qualify for an expedited exemption with arborist documentation.
Whitby
Woodlands and larger private trees
Whitby enforces both Regional woodland conservation rules and municipal tree provisions. Lots inside protected woodland areas face stricter review, and an arborist report is normally required to justify removal.
Oshawa
Protected private trees and all city-owned trees
Oshawa regulates the destruction of protected trees and prohibits any work on boulevard or park trees without city authorization. Emergency removals must be documented with photos and an arborist assessment.
Port Perry
Regulated private trees, woodlands and all township trees
Scugog's tree by-law governs Port Perry, protecting regulated private trees, woodland areas and township-owned trees. Applications need species, DBH, a site plan and usually a replacement planting commitment.
Still have a question about your tree or permit?
An ISA Certified Arborist will answer directly — no call centre. Call 289-804-7173 immediately.




















