When a proposed home addition, garden suite, or renovation does not strictly comply with your municipality's zoning by-law, you need approval from the local Committee of Adjustment before you can obtain a building permit. Ontario Design Studio prepares the drawings, zoning analysis, and supporting rationale for minor variance applications across Ontario - built specifically to satisfy the four statutory tests the Committee applies. This is one of the most overlooked stages of the permit journey, and getting it right is often the difference between an approved project and a stalled one.
What Is a Minor Variance?
Every property in Ontario is governed by a municipal zoning by-law that sets rules for setbacks, building height, lot coverage, floor area, and parking. A minor variance is a small, permitted exception to one of those rules. If your design exceeds a height limit, encroaches into a required setback, or covers more of the lot than the by-law allows, you apply to the Committee of Adjustment for relief under Section 45 of the Planning Act - rather than pursuing a full, expensive zoning by-law amendment.
The Four Tests Every Application Must Pass
The Committee of Adjustment does not approve variances automatically. Under the Planning Act, your application must satisfy all four of the following statutory tests:
- The variance is minor - modest in scale and impact on neighbours
- It is desirable for the appropriate development or use of the property
- It maintains the general intent and purpose of the zoning by-law
- It maintains the general intent and purpose of the official plan
We design your drawings and prepare the written rationale to demonstrate each test clearly, so the Committee has everything it needs to approve your application with confidence.
Facing a zoning hurdle on your project?
Ontario Design Studio prepares minor variance drawings and Committee of Adjustment applications across Ontario and the GTA. Call 416-558-9607 or request your free quote.
The Committee of Adjustment Process, Step by Step
Understanding the timeline helps you plan. A typical application runs about two to four months:
- 1. Application & drawings - we prepare the site plan, zoning analysis, and variance schedule and file with your municipality
- 2. Circulation - the city circulates your proposal to internal departments and agencies for comment
- 3. Notice sign - a mandatory notice sign is posted on your property
- 4. Mailed notices - the municipality mails notice to every property owner within 60 metres
- 5. Public hearing - the Committee hears your application and any comments from neighbours
- 6. Decision - the Committee approves, approves with conditions, or refuses
- 7. Appeal period - a 20-day window follows the decision, during which the outcome can be appealed to the Ontario Land Tribunal (OLT)
Drawings We Prepare for Your Application
- Site plan clearly identifying each requested variance against the required zoning standard
- Zoning analysis table comparing existing, required, and proposed figures
- Floor plans and elevations illustrating the proposed design
- Coverage, setback, and height calculations that withstand examiner scrutiny
- Written rationale addressing each of the four statutory tests
Common Reasons Homeowners Need a Minor Variance
- Home additions that reduce a required side or rear setback
- Garden suites that exceed lot-coverage or setback limits
- Second-storey additions that exceed the maximum building height
- Multiplex conversions with parking or density relief
- Detached garages, decks, or porches encroaching into a setback
Minor Variance Costs
Drafting and rationale for a minor variance application typically range from $1,500 to $3,500 depending on complexity, plus the municipality's application fee. This is separate from your building permit fees. See our complete 2026 cost guide for a full breakdown.
Cities We Serve for Committee of Adjustment
We prepare minor variance applications across Ontario, with day-to-day experience before Committees of Adjustment in:
- Toronto - including Scarborough, Etobicoke, and North York
- Mississauga
- Brampton
- Markham
- Vaughan
- Hamilton
- Oakville
- Burlington
Related Resources
- Garden Suite & Laneway House Permits
- Residential Building Permits
- Our Permit Process, Step by Step
- Permit Rejected? We Can Fix It
- Building Permit Drawing Cost Guide
Frequently Asked Questions
What is a minor variance in Ontario?
A minor variance is a small, permitted exception to your municipality's zoning by-law. When a proposed design does not strictly comply with a rule - such as a setback, building height, or lot coverage limit - you apply to the local Committee of Adjustment for relief. Approval requires meeting four statutory tests under Section 45 of the Planning Act.
What are the four tests for a minor variance?
Under the Planning Act, the Committee of Adjustment will only approve a minor variance if it meets all four tests: (1) the variance is minor; (2) it is desirable for the appropriate development or use of the property; (3) it maintains the general intent and purpose of the zoning by-law; and (4) it maintains the general intent and purpose of the official plan. We design drawings and prepare the rationale to satisfy all four.
How long does the Committee of Adjustment process take in Ontario?
Most Committee of Adjustment applications take about two to four months. The process includes submitting the application, municipal circulation, posting a notice sign on the property, mailing notices to owners within 60 metres, a public hearing, and a decision. After the decision there is a 20-day appeal period to the Ontario Land Tribunal (OLT).