Fences, Hedges, Retaining Walls (residential properties)
A certificate of authorization is required to erect a fence or a retaining wall and to plant a hedge. A number of other standards must also be respected:
Cases where a fence must be erected
You and your neighbour can agree to build a common fence on the property line and to share the construction and maintenance costs. You must then decide jointly of the type of fence to be erected, its height, color, materials, and accessories.
A fence which has been erected on the common property line is deemed to be a common fence which belongs to both neighbours unless the original owner can prove that he alone erected said fence without thereafter agreeing to sharing the fence.
The maintenance, repairs, and reconstruction of any common work is shared by its owners.
Information: (514) 633-4125
To consult the integral version of the zoning by-law (section on fences, walls, or hedges at 188.8.131.52), please click here (PDF – 1.4 MB). We invite you to verify with the Urban Planning Department all questions concerning the interpretation of this by-law.