Create or legalize a secondary suite

Steps to creating or legalizing a secondary suite

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  Step 1: Confirm if secondary suites are allowed in your area

  If your secondary suite is or will be located in a duplex or two-family dwelling:

  • Review the Zoning and Development By-law to confirm if secondary suites are allowed in your area

  Contact the Development and Building Services Centre if your zone's district schedule indicates two-family dwellings are not an approved use. You may still have options.

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  Step 2: Determine if you need a secondary suite inspection

   You only need a special inspection if you are legalizing an existing suite. The special inspection fee is $218 + GST.

  A. Check to see if you need a secondary suite inspection

  You only need a secondary suite inspection completed before you submit your permit application if:

  • You have already received a notice from us initiating enforcement action, AND
  • Your house was built before January 2, 2001

  If this does not apply to you, go to step 3.

  B. Request a secondary suite inspection

  You don't need to visit us to book an inspection. 

  We are limiting the number of secondary suite inspections that we are undertaking in response to COVID-19. If you are required to have an inspection, please request an inspection online.  We will be in touch with you to explain the next steps.

  Register for an online account and submit your request

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  Step 3: Prepare plans, submit your permit application, and pay fees

  A. Prepare your floor and site plans

  A development and building permit will be required to carry out upgrading work and formally change the use of your house to include a secondary suite.

  If your space is eligible to be used as a secondary suite, we recommend that you speak to a qualified design professional and/or contractor to prepare plans for your suite.

  You will need to provide:

  • TWO sets of floor plans
  • TWO sets of site plans

   Your plans must be drawn to scale and clearly labelled.

  During the permit application review, additional requirements may be requested on a case by case basis. 

  Review a sample of an acceptable drawing package PDF file (557 KB)

  Floor plan requirements

  Your floor plans must include the:

  • Location and dimensions of all rooms (bedrooms/ kitchen/ bathroom/living room, etc.), stairs, windows, doors, and all plumbing and gas fixtures in the suite
  • Suite’s ceiling height

   Plans of the main house are not required to be submitted.

  Site plan requirements

  • Your site plans must include the:
    • Location and dimension of all on-site parking
    • Access path from the street to the suite entry and any protrusions encroaching onto the access path
    • Location of the lane and the street
    • Finished floor elevation (height of floor in relation to grade)
    • Grade level at the four corners of the site

  B. Submit application and pay fees

  Submit application:

  • Fill out a development and building permit application form PDF file (196 KB)
  • Fill out an owner's undertaking letter PDF file   (533 KB)
  • Deliver the application form, letter, and drawing package in person to the Development and Building Services Centre

   We can only accept your application once you have provided all of the required documents and plans and paid your fees.

  C. Review application

  Following a detailed review of the submitted plans and documents, we will:

  • Provide you with a list of items that you will need to address before we can issue your permit
  • Book a meeting with you to discuss how to address these items

  Once these items are addressed, we will issue your permit.

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  Step 4: Begin construction, get trade permits, and book inspections

  Once your building permit has been issued, you can begin work on your secondary suite, get the required trade permits, and book inspections.

   If you need to make any change to the work approved in the permit, please contact the Development and Building Services Centre. Changes must be reflected on the approved plans and are subject to additional fees.

  A. Apply for trade permits

  Most house renovations will require separate trades permits. These are generally applied for by the contractor. 

  Get details about and apply for a:

  • Plumbing permit
  • Electrical permit
  • Fire sprinkler permit
  • Gas permit

  B. Request inspections

  All work completed will need to be inspected at various stages of construction. Your contractor can advise you when an inspection should be requested. 

   A secondary suite is not considered legal until the final inspection has been passed.

  Get more information and book an inspection

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  Step 5: Complete construction and determine if you need a business licence

  If the work meets all requirements, your suite will be approved. 

  • You DO NOT need a business licence, if your family (parents, children, etc.) will be living in the suite
  • You DO need a business licence, if you intend to rent out your suite long-term

   Unless you are the principal resident living in the suite (not the main house), you cannot use your secondary suite as a short-term rental. 

  ​How to get a business licence

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