Pruning for the health of the tree is exempt from a permit. For tree removals, according to Dundas' By-law, you are not required to obtain a permit, except for: 

• Proposed development sites without protection through an agreement with the Town
• Open Space Zones as defined in the Zoning By-law 
• Environmentally Significant Areas as defined by the Region of Hamilton-Wentworth 
• The front, side and flankage rear yards in the Cross-Melville Heritage District 

Still confused? Give us a call and we'll have one of our ISA-certified arborists swing by and give you an assessment.