Permits and certificates

Applying for a permit


If you are planning to do renovations of any kind this spring or summer, be sure to check beforehand whether you need a construction permit or a certificate of authorization.

Permit requests can be submitted in person at the Town Hall during regular business hours or online, using the Request Online System. All required documents to be attached must be scanned as photos of the documents will not be accepted.

For questions concerning permits, please contact the Urban Planning Department by email at or by phone at 514 694-4100 during regular business hours.

Form and Documents to Produce:

A permit or certificate is required to cut down a tree and for most types of renovations, in particular to:

  • Install a fence
  • Install a swimming pool (inground or above-ground)
  • Install a spa
  • Install a heat pump
  • Install a garden shed
  • Install a temporary building
  • Install a sign
  • Replace a fireplace or a wood-burning appliance
  • Excavate the ground
  • Extend or redo a driveway
  • Build a balcony / deck
  • Build a patio
  • Extend, modify or build a structure
  • Move, repair or demolish a structure
  • Hold a garage sale
  • Hold a block party