Do you need a permit?
Most building projects in Wrenford require a development permit and a building permit. These permits make sure your project follows the Zoning By-law, the Ontario Building Code, and other city rules. If you are not sure whether your project needs a permit, visit our Do I need a building permit? page.
How to apply
All residential permit applications are submitted through the Wrenford ePlan Portal. You can create an account, upload your documents, track your application, and pay fees online. Applications must be complete before staff begin their review. Incomplete applications will be returned and will not start the processing clock.
Common residential permits
Use this list to find the permit type for your project. Some projects require both a development permit and a building permit. Others only require a building permit.
- New homes: Single detached, duplex, triplex, and townhouse construction requires a development permit and a building permit.
- Additions and extensions: Adding rooms, expanding living space, or finishing a garage requires both permits.
- Detached structures: Garages, sheds, and gazebos require both permits if they are over 10 square metres.
- Decks and porches: Covered or uncovered decks require both permits.
- Pools and hot tubs: In-ground pools, above-ground pools, and permanent hot tubs require both permits.
- Secondary suites and backyard suites: Creating a legal rental unit requires a development permit, a building permit, and registration with the city.
- Interior work: Basement development, interior alterations, and moving load-bearing walls require a building permit.
- Demolition: Tearing down a structure requires a building permit.
- Heating and appliances: Installing a wood stove, fireplace, or changing your fuel source requires a building permit.
- Home occupations: Operating a business from your home requires a development permit.
What to upload
When you submit your application, you will need to attach the correct documents. Missing files will delay your review. Required documents usually include:
- Site plan: A drawing of your property showing the property lines, the existing house, and the new structure. Show all setback measurements (the distance from the structure to each property line).
- Building plans: Detailed floor plans, elevations, and cross-sections showing framing, insulation, and mechanical systems. Plans must be drawn to scale.
- Landowner authorization form: A signed form giving the city permission to share application details with the property owner or their representative.
- Fire safety plan: Required for larger additions, secondary suites, and home occupations.
- New home warranty registration: Proof of enrollment with the Ontario New Home Warranty Program for new builds.
Fees and processing times
Application fees are set out in the Fees and Charges By-law 2025-151. You can view the current fee schedule on our building permit fees page. Fees are non-refundable once the application enters review.
Processing times depend on the complexity of the project. Simple permits, such as small sheds or interior alterations, are usually reviewed within 5 to 10 business days. Larger projects, like new homes or secondary suites, may take 15 to 25 business days. You can check the status of your application at any time in the ePlan portal.
Need help before you apply?
If your project is large or complex, we strongly recommend booking a pre-development consultation. A planner will walk you through zoning rules, site requirements, and the exact documents you will need. You can also reach the Planning and Development team directly through Contact planning and development.