Addition to a Commercial Building

Addition to a Commercial Building


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 the contact information you may need for groundwork and utilities.

Each site is required to have an approved Fire Safety Plan posted on-site during construction.

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.