Local tree-rule guide
Blainville tree rules
Authorization certificate required for trees ≥ 10 cm measured at 1.4 m, subject to the City’s permitted-removal reasons and documentation.
The local rule
Blainville requires an authorization certificate to fell a tree that meets the City’s protected diameter definition.
The City’s current material uses a 10 cm diameter measured at 1.4 m for the authorization rule and also treats severe crown or root removal as tree felling in specified circumstances.
Before work starts
- Ownership: check the property line. Public and boundary trees may follow a different process.
- Site context: review any development approval, covenant or protected-area conditions.
- Work requirements: confirm any permit, exemption or protection requirements that apply to the planned work.
Official sources
Primary municipal source reviewed September 23, 2026. Rules can change; confirm with the local authority before work. How we research