St. Clair Township Crest
1155 Emily Street
Mooretown ON
N0N 1M0

Phone: (519) 867-2021

Office Hours
Monday to Friday 8:30 am - 4:30 pm

Building & Plumbing Permits

Building permits are available to be printed up by clicking the link below. If you are building a new home, you will also be required to fill out a Declaration of Applicant for Building Permit Regarding the Ontario New Home Warranties Plan Act at our office, or you can pick one up at the office or have one mailed. For further information, contact the clerks department at (519) 867-2021 or by e-mail at

Building & plumbing permits are required for many home projects. The County of Lambton Building Services Department issue permits for St. Clair Township. To view building permit information for the homeowner on the County of Lambton web site or to download a building and plumbing permit application, please click here.

To determine the cost of a permit for your project, please refer to the Township Fees Bylaw.

B-L 16 of 2022 – Fees By-Law

To determine if your project is subject to Development Charges, please refer to the Township’s Development Charges By-law

B-L 6 of 2021 – Development Charges By-Law