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Secondary Suite Permit
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Secondary Suite Permit

Permit drawings and application support for creating or legalizing a secondary suite in a house, including layout, safety, code, and municipal review requirements in Ontario.

Code Compliant & Safe

City Submission & Review Support

Fast, Clear Communication

Do You Need a Permit for a Secondary Suite?

Yes. Creating or legalizing a secondary suite usually requires a building permit because it affects life safety, fire separation, exits, ventilation, smoke/CO alarms, and other Ontario Building Code requirements.

What Secondary Suite Permit Usually Involves

01
Existing layout review
02
Suite layout planning
03
Fire and life-safety coordination
04
Permit drawings
05
City comment support

Key Requirements for a Secondary Suite Permit

Secondary Suite Permit permit drawing example and review
  • Separate and safe entrance/egress review
  • Fire separation and protected openings review
  • Smoke/CO alarm and ventilation considerations
  • Property information, address, and existing site conditions
  • Permit-ready drawings prepared to match the scope of work
  • Applicable Ontario Building Code and municipal zoning review
  • Coordination with structural, mechanical, or other consultants where the project requires it
  • Support responding to municipal plan examiner comments after submission

Need help preparing a secondary suite permit submission?

Permit Works can review the project scope, prepare permit-ready drawings, coordinate consultant input where needed, and support the application through city comments.

Request a Permit Quote
or call (416) 989-8900

Our Permit Process

1
Quotation
We review your scope of work and provide a clear quotation.
2
Site Documentation
On-site measurement and information gathering
3
Design
We provide a preliminary design approximately 5–10 business days after the site visit, depending on project scope.
4
Permit Package
Once the design is confirmed, we prepare the permit package for city submission.
5
City Submission
We submit your application for city review.
6
Approval & Support
We respond to city comments and support the permit review process.

Drawings & Documents Typically Required

Existing and proposed floor plans
Life-safety and fire separation notes
Sections/details for affected assemblies
Window/egress and door information
Municipal application forms and supporting documents
Not all drawings listed above are required for every project. We confirm the required drawings based on your project scope, property, municipality, and permit requirements.

Common City Review Issues

Insufficient fire separation details
Egress windows or exits not clearly shown
Smoke/CO alarm locations missing
Ceiling heights or room sizes not coordinated
Zoning or parking questions during review

What Our Clients Say About Us

4.6/5

Based on 75+ verified reviews

4.9/5

Based on 80+ verified reviews

Frequently Asked Questions

Start Your Secondary Suite Permit Review

Share your project details with Permit Works and we can help identify the drawings, documents, and permit pathway needed before you submit.

Request a Permit Quote
or call (416) 989-8900