Building Permit

A building permit is required for any new building greater than 10 square meters (108 square feet), any addition to an existing building, any material alterations to an existing building that affect the structural design of the building, mechanical, electrical, or plumbing services (no limit on the size of building), fire separations, exiting, fire protection systems and the use of buildings or parts thereof.

Requirements for a Building Permit

Please refer to the Building Permit Checklist for more details on what you will need to complete the application.

Submit your signed and completed application, along with your drawings, to
Please note, the largest we can print is 11" x 17" paper size. Larger drawings will need to be dropped off at Chatham Civic Centre or mailed.

For questions or more information regarding Building Permits, please call 519-352-8401 x 3215, Monday to Friday, 8:30 am - 4:30 am.

No work can start until the issuance of the building permit and the development must be completed in phases. During each major phase of construction, the Building Official (Inspector) must inspect the project to ensure that the work conforms to the approved plans.  A list of all the mandatory inspections and the Building inspector's phone number will be provided at this time on the permit. The person responsible for the construction project must request each inspection with 48 hours' notice. If the Building Official finds that some of the work does not conform to the approved plans, he or she will advise that the situation be remedied. Once all the mandatory inspections have been completed and the Building Inspector has completed their final inspection the project is complete!

Permits Related to Building

Additional Information