An addition to a commercial building changes the exterior structure, the footprint, or the height of the structure.

Depending on the size and location a lot grading permit may be required. 

A development, building and all subtrade (electrical, plumbing and gas) permits are required to construct an addition onto an existing commercial building.


Step 1: Apply

Depending on the scope of your project, you will require a variety of permits.

To establish if a lot grading permit is required, please submit an inquiry, including a plan (if possible) for preliminary review to Engineering Services at

Please submit a complete Development Application, Lot Grading and Building Permit application.

Please submit a complete Sub Trade Application for all sub trade permits required as per the scope of work for the project. 

Step 2: Approval

Once a complete application is received, all permits will be issued within 2- 7 business days.

In the event a variance is required for an addition, timelines may extend up to 25 days.

Step 3: Construction

You may begin construction once you have received all required permits. Below is contact information you may need for ground work and utilities.

Step 4: Inspections

All required inspections are listed on the conditions issued with the permit.

it is the Permit holder's responsibility to ensure all inspections are requested and received.