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Garages & Sheds

Basic zoning, permit and inspections requirements for building an accessory building in Ontario are outlined below.One-story detached accessory structures used as storage sheds, playhouses, or similar uses do not require permits unless the floor area exceeds 110 square feet . Code requirements, including zoning code, must still be followed.

ZONING REQUIREMENTS

Structure shall be:

  • limited to one story in height (maximum 10 feet from floor to top plate)
  • located completely to the rear of the dwelling
  • located a minimum of 10 feet from dwelling
  • located a minimum of 35 feet from any street right-of-way (front yard property line)
  • located a minimum of five feet from rear or side property line

No one detached accessory structure may be larger than 800 square feet in area.

The cumulative total of all accessory buildings and attached garages shall not exceed 1,000 square feet.

The footprint of the accessory structure must be less than that of the principal structure, including attached garage.

BUILDING PERMIT REQUIREMENT

Include with your building permit application and fee:

  1. Two copies of a certificate of survey or a scaled site plan with the proposed location of the accessory structure.
  2. Two copies of drawings showing proposed design and materials. Drawings shall be drawn to scale and include the following information:
    • elevation showing what structure will look like
    • floor plan showing:
      • proposed building size
      • design of floor slab
      • size and location of any posts, headers, and footings
      • size and spacing of roof supports
    • wall section showing:
      • slab information (thickness, rebars, etc)
      • wall construction (size and spacing of studs, treated sill plate, sill plate anchor, sheathing and siding material, etc)
      • roof structure information (rafter or truss sizes and spacing, roof sheathing, roof slope, roof cover materials, and ice protection membrane (if structure is heated or attached to dwelling)

REQUIRED INSPECTIONS

Building inspections are required at different stages of construction.

It is your responsibility to call for inspections once your construction project starts. Neglecting these inspections may cause costly delays and time consuming work stoppages.

The name and telephone number of the Inspector or District Inspections office is included with your permit documents.

A Building Inspector can assist you in determining which inspections are required for your particular project.

Several inspections are required during construction to ensure that all work is done according to the approved plans.
Click here for mandatory Inspections.

You need to call 2 working days before your required inspection, the appropriate numbers below according to ward location.

The best time to speak with an inspector is to call between the hours
of 8:30 am – 9:30 am Monday – Friday .

Call the appropriate number below indicated by region to book your inspection.

Please remember that your stamped permit plans must be on site for each inspection.

Toronto & East York - (416) 338-0700

North York - (416) 395-7541

Scarborough - (416) 396-7322

Etobicoke - (416) 394-8055

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3 Elements Architecture & Construction Inc.