On Jan. 1, 2025, the 2024 Ontario Building Code came into effect. Building permit design drawings prepared under the 2012 Ontario Building Code will soon be ineligible for submission for building permit applications.

Please take note of the following transition dates for submitting complete building permit applications: 

Jan. 1, 2025 to March 31, 2025
- Building Permit applications may be submitted using the new 2024 Ontario Building Code
- Building Permit applications may be submitted using the 2012 Building Code if the applicant demonstrates that their working drawings were substantially complete by Dec. 31, 2024

April 1, 2025
- Building Permit applications must be submitted using the 2024 Ontario Building Code

Please consult with your architect or qualified designer to understand how the 2024 Ontario Building Code will impact your proposed development. Keep in mind that any changes to building footprint, design or layout may have impacts on your site plan application or approval including grading, drainage, landscaping and, crucially, zoning conformity. Please feel free to email with any questions.

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Residential building permits

Note: Our online permit tool cannot be used to apply for revision permits to approved permits or permit applications. To make changes or revisions, please contact your permit administrator or email us, as they cannot be processed online.

You can use our online services tool to apply for:

  • Residential building permits
    • Decks
    • Additions
    • Alterations
    • Secondary suites
    • New builds
  • Demolition permits
  • Signage permits
  • Septic permits
  • Pool/spa enclosure permits

For more information about the building permit process including rates and fees, application guidelines, and additional forms, visit our Building Permits page.