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Tree Cutting on Private Property

You have trees on your property? Before cutting them down or pruning them, make sure you obey the rules. The Borough of Lachine encourages good arboricultural practices in order to maintain a safe and healthy urban forest!

Tree cutting permit

A permit is required to cut down any tree, located on private property, that has a diameter of 10 cm or more, measured at a height of 1.3 metres from the ground. Cutting down trees without a permit is subject to fines ranging from $600 to $15,000, depending on the number of trees and the size of the area where the trees were removed.

How to obtain a permit

  • Submit a request by calling 311.
  • An inspector will come and examine the tree and then will then contact the resident to inform him/her of the decision reached.

Conditions for cutting down a tree

  1. Hazardous tree
  2. Tree that is causing significant damage
  3. Tree that is dead, dying or affected by an irreversible diseas
  4. Tree located in or near the site of planned construction

Replacement of a tree that has been cut down

Any tree that has been cut down must be replaced within 6 months of the permit being issued. The location on the private property and the species of the replacement tree are left to the owner's discretion, as long as these considerations are in keeping with the following requirements:

  1. The choice must be in accordance with the criteria for the height of the tree at maturity, as indicated in the certificate of authorization.
  2. The tree must not be on the list of species prohibited for planting on private property:
  • Poplar (all Populus trees)
  • Willow (all high-stem willows)
  • Silver Maple (Acer saccharinum)
  • American Elm (Ulmus americana)

    3. The replacement tree must have the following dimensions at the time of planting:

For a leafy tree

- Height of at least 2 metres measured from the ground

- Diameter of at least 5 cm measured at a height of 15 cm from the ground

For an evergreen tree

- Height of at least 1.75 metres measured from the ground


  • Processing of a request to cut down a tree: $25/property (non-taxable)
  • Certificate of authorization for tree-cutting: $50 (non-taxable)
  • Certificate to cut down an ash tree attacked by an emerald ash borer: free of charge

Method of payment

  • Cash
  • Debit or credit card (Mastercard, Visa)
  • Cheque or money order made payable to Ville de Montréal (certified cheque where required)

 For further information

Borough of Lachine
Division de l'urbanisme, des permis et inspections
Permits counter
1800 boulevard Saint-Joseph
Lachine (Québec) H8S 2N4
Telephone no: 514 634-3471, ext. 296

Monday & Wednesday: 8:30 a.m. - noon & 1 p.m. – 5 p.m.
Tuesday & Thursday: 10:30 a.m. - noon & 1 p.m. -5 p.m.
Friday: 8:30 a.m. - noon

Information: 311
BAM Lachine


Replacement of an ash tree that has been cut down

Ville de Montréal offers assistance for treating, cutting and replacing ash trees affected by emerald ash borers.


See also