Finishing a basement

Scope of Work

A building permit is required when finishing a basement, if the work proposed includes any of the following:

  • Structural or material alterations.
  • Installing or modifying plumbing systems.
  • Constructing separate rooms in a basement.
  • Adding a second suite

Required Documentation

Required Inspections

Plumbing Underground

Required before covering underground plumbing. An air or water test is required.

Framing

Required at completion of structural framing.

Fire Separation

Required after completion of wall, floor, and shaft separations and fire stopping, before interior finishes are installed.

Mechanical (HVAC) Rough-In

Required after rough-in of fireplaces, ductwork, heating, ventilation, and air conditioning systems.
ESA rough-in required.

Fireplaces and Chimneys

Inspection required at commencement of installation.

Plumbing Rough-In

Required at completion of drains, waste, vent, and water piping systems. An air or water test is required.

Insulation / Vapour Barrier

Required after installation of insulation, air barrier, and vapour barrier.

Occupancy

A person may occupy a dwelling provided that an occupancy permit has been issued by the building inspector. To be eligible there must be no outstanding Building Code Orders and certain building components and systems must be complete and inspected under Division C 1.3.3.

Final Inspection

Required upon completion of the building.

Additional Information

  • All drawings submitted for building permit applications are required to be prepared and reviewed by a qualified designer, architect, or professional engineer.
  • South Nation Conservation approval is required prior to the issuance of a building permit for adding a bedroom or installing or modifying plumbing systems. 
  • Electrical Safety Authority final report is required to close the permit, if applicable.

Important

The information provided on this page is intended for general informational purposes only and serves as an overview of common permit requirements based on project type.

Permit requirements, required documents, inspections, and approvals may vary depending on the scope of work, site conditions, applicable laws, and the requirements of the Ontario Building Code and the Chief Building Official (CBO).

Additional information or documentation may be required during the review of your application.