Septic Systems

To apply for a permit to add a secondary suite, please submit the following forms and plans through the Permit Portal or by email.

• Building Permit Application Form 
• Applicable Law Checklist 
• Schedule 1: Designers Information, for BCIN (Building Code Identification Number) designers
• Plumbing Data Sheet

You need to include the following plans in your application package:

• A site plan identifying the location of the existing building and parking spaces
• Floor plans of every floor level (specify rooms) and proposed uses of all spaces, including the location of smoke and carbon monoxide alarms and all plumbing fixtures
• Cross sections to show the existing and proposed building construction and specifications of all floors, wall, and roof assemblies
• Structural details for any proposed structural work
• Mechanical (HVAC) plans showing existing layout and proposed changes
• Building elevations with limiting distance calculations if new openings are proposed

After getting approval to build a secondary suite, you need to register it with the Town. Complete a Secondary Suite Registration Application.

View the following resources to learn more about the building permit process for a secondary suite.

• Our Second Suites Building Process Step Guide explains the steps for getting legal permission to have a basement apartment
• View our Second Suites Q&A Guide to find more details on the entire process involving all departments and outside agencies

View the Second Suites Building Code Guide to learn about the technical requirements of the Ontario Building Code to create a legal basement