Structural Alterations

A building permit is required for all structural alterations within residential buildings and residential accessory structures.

 

Building permit applications are accepted through the Online Permitting Portal

Designer requirements

Drawings that are prepared by a qualified designer (as defined in the Ontario Building Code) must include:

  • The qualified designer’s name
  • The qualified designer’s registration number
  • The qualification identification number of the qualified designer (Building Code Identification Number: BCIN)
  • The qualified designer's signature
  • The stamp or statement that the qualified designer has reviewed and taken responsibility for the design activities

Note: Property owners may prepare and submit drawings that follow the requirements outlined in the “drawing requirements” section below.

 

Drawing requirements

A PDF copy of the construction drawing must be provided.

 

All drawings are to be designed to a minimum scale of 1:75 or 3/16ths equals one foot. Drawings are to be fully dimensioned, signed and dated, and include information such as:

  • A property survey or site plan (if applicable)
  • Construction drawings. Depending on the scope of work, each drawing set may require the following list of information. All drawings must include existing structural information and the proposed changes to the existing structure. Drawings must include:
    • Foundation plan
    • Floor plan or framing plan
    • Building elevations indicating building height, length, roof overhang dimension, window and door locations and sizes, and exterior finishes
    • Wall sections and details
    • Roof plan including engineered truss drawings and layout (if applicable)
    • Engineered beam and floor joist layout and specifications (if applicable)

 

Additional requirements