Plumbing
A building permit is required for any addition or alteration of plumbing fixtures, water and sewer services.
If the proposed plumbing alterations are located on a property that has a septic system, see the septic application process.
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
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 must be provided on standard-sized sheets 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:
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
- Commonly Used Applicable Laws & Building Permits (PDF)
- Building Permit Applicant Authorization Form (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