A building permit is required for any addition or alteration of plumbing fixtures, water and sewer services.

Designer requirements

• 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

Drawing requirements

• Residential plumbing fixture addition or alterations
• For information relating to residential properties, please contact the Building Standards department at 905-832-8510 and ask to speak directly to a permit expediter.
• Non-residential plumbing addition or alterations
• Two copies of the proposed plumbing plans with a plan view of the proposed area of construction including the location of the new and relocated plumbing fixtures.

Additional requirements

• Application for a Permit to Construct or Demolish (PDF)
• Commonly Used Applicable Laws & Building Permits (PDF)
• Schedule 1 Designer Information Form (PDF)
• Residential Plumbing Data Form (PDF)
• Non-housing Plumbing Data Sheet (PDF)
• Any other documents that are important for the project