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Services Residents Projects Requiring Authorization

Projects Requiring Authorization

What work requires authorization?

For all the following types of project, you should contact the experts in our Urban Planning and Development Division to get your project approved and obtain the necessary permit or certificate.

Consult the detailed list

Projects in a Residential Zone (Single-Family Dwellings, Duplexes)

  • Addition
  • Antenna
  • Balcony, patio or terrace
  • Changes to doors, windows and garage doors, even if the existing opening remains: colour, type, modulation, style, bay window, enlarging of existing openings
  • Changes to grade levels (raising or lowering land levels)
  • Creating an habitable attic space, dormers or skylights
  • Demolition of a building
  • Demolition of an accessory building or a pool
  • Drilling, underpinnings and underground earth-retaining wall (mur berlinois)
  • Driveway: enlarging or repaving driveway (form in French only)
  • Exterior finishes: alteration or changing materials (including roofing): color, type of materials, style, renovating existing finishes
  • Fence
  • Garden shed or cabana (form in French only)
  • Gazebo, arbour or pergola
  • Geothermal system
  • Irrigation system
  • Landscaping: adding or modifying paved surfaces, planting hedges in front yards (respecting new green bands & vegetation and plant coverages)
  • Location of a garbage/recycling container
  • Mechanical equipment: heat pump, air conditioning or generator units
  • Modify or renovate the exterior of a building
  • New building
  • Playgrounds
  • Porch or vestibule
  • Repairing private sewage system
  • Retaining wall
  • Solarium, veranda
  • Solar panels
  • Structural changes: interior and exterior
  • Swimming pool, spa or pond (Form in French only)
  • Tree cutting

Permit Request

Application for Permit to Occupy or Temporarily Obstruct Public Property


Projects in Community, Institutional, Multi-family, Commercial or Industrial Zones

  • Accessory building
  • Addition
  • Antenna
  • Café-terrace
  • Changing of exterior finishes
  • Demolition
  • Drilling, underpinnings and underground earth-retaining wall (mur berlinois)
  • Driveway and Parking area: enlarging or repaving driveway
  • Fence
  • Geothermal system
  • Interior and exterior renovations
  • Irrigation system
  • Landscaping: adding or modifying paved surfaces, planting hedges in front yards (respecting new green bands & vegetation and plant coverages)
  • Location of the garbage/recycling container
  • Mechanical equipment: heat pump, air conditioning or generator units
  • Modification to openings
  • New building
  • New loading areas
  • Occupancy: opening of a new business or modification of an existing business (step 1. needs to be completed before completing the Occupancy application form)
    1. Pre-application validation (in French only)
    2. Occupancy application form (in French only)
  • Pad-mounted transformer (TSS)
  • Repairing private sewage system
  • Retaining wall
  • Signage
  • Smoking shelter
  • Tree cutting

Permit Request

Application for Permit to Occupy or Temporarily Obstruct Public Property

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