What Is the Committee of Adjustment?

Every municipality in Ontario administers a zoning bylaw that controls what can be built on every property — how close to the lot lines, how tall, how much of the lot can be covered, how the land can be used. These rules are not suggestions. If your proposed project does not comply with the applicable zoning provisions, the building department cannot issue a permit.

The committee of adjustment is the municipal body empowered under the Ontario Planning Act to grant relief from specific zoning provisions — what is called a minor variance. It is not a legislative body and it does not change the bylaw. It grants permission for a specific project on a specific property to deviate from specific provisions of the bylaw, based on evidence that the deviation meets the four statutory tests.

It is important to understand what a committee of adjustment is not. It is not a zoning bylaw amendment — that is a much more complex, time-consuming, and expensive process handled by municipal council. Minor variances through the committee of adjustment are the appropriate remedy for most residential projects that fall slightly outside zoning compliance.

What Are the Four Statutory Tests?

Under Section 45(1) of the Ontario Planning Act, the committee of adjustment can only grant a minor variance if all four of the following tests are satisfied. All four — not some of them:

1. The variance is minor in nature. “Minor” is not defined by a specific measurement — it is a planning judgment. A 10% reduction in a required setback is more likely to be considered minor than a 50% reduction. The committee considers whether the deviation is proportionate to the overall zoning framework.

2. The variance is desirable for the appropriate development of the land. The project must make good planning sense for the property in its context. A rear addition on a narrow infill lot in an established neighbourhood generally satisfies this test. An oversized structure that overwhelms adjacent properties generally does not.

3. The variance maintains the general intent and purpose of the zoning bylaw. The bylaw exists for a reason — typically to ensure compatible land use, adequate light and air, and appropriate density. The variance must not undermine those objectives even while departing from a specific numeric standard.

4. The variance maintains the general intent and purpose of the official plan. The official plan sets the long-term land use vision for the municipality. The variance must be consistent with that vision at the policy level.

Common Variance Scenarios

Side yard setback on a narrow lot. Many older GTA properties have lot widths of 25 to 30 feet — widths that predate current zoning minimums. A proposed addition that meets the lot line by a metre less than the bylaw requires is one of the most common variance applications. These are generally considered minor when the adjacent neighbour is not significantly impacted.

Lot coverage exceeding the maximum. Most residential zones cap lot coverage — the percentage of the lot that can be covered by structures — at 35% to 45%. An addition that pushes coverage to 50% requires a variance. The planning justification must demonstrate that the excess coverage is consistent with the character of the surrounding neighbourhood.

Height variances for second-storey additions. Maximum building height provisions vary by zone and municipality. A second-storey addition that brings the building to 9.5 metres in a zone with a 9-metre maximum needs a variance. These are typically considered minor when the addition is set back from the street and does not create shadow impacts on adjacent properties.

Rear yard depth for additions. A rear addition that encroaches into the required rear yard setback is common on smaller urban lots. The planning justification must address privacy and amenity space for both the subject property and adjacent neighbours.

For projects requiring a committee of adjustment application, see our committee of adjustment service page for a full breakdown of our process. For the zoning research that determines whether a variance is needed, see our zoning bylaw research service.

The Committee of Adjustment Application Process

Step 1 — Identify the variance. Before you can apply, you need to know exactly which provisions of the zoning bylaw your project does not comply with and by how much. This requires a zoning analysis based on the current survey and the proposed drawings. Guessing at the required variances and finding out at the hearing that you missed one is a significant problem.

Step 2 — Prepare the application package. A committee of adjustment application requires: a completed application form, the applicable fee, a survey, the proposed drawings showing the variance clearly, and a planning justification letter addressing all four statutory tests. Most municipalities also require a site plan showing the variance in context.

Step 3 — Submit and wait for a hearing date. Once the application is accepted, the municipality schedules a public hearing. In Toronto, wait times from application submission to hearing currently run 6 to 10 weeks. Other GTA municipalities are generally faster — 4 to 8 weeks is typical.

Step 4 — Public notice and neighbour notification. The municipality sends notice to all property owners within a specified radius of the subject property — typically 60 metres. Neighbours have the right to appear at the hearing and either support or oppose the application. Anticipating and addressing likely objections in advance is one of the most important steps in the process.

Step 5 — The hearing. The applicant (or their representative) presents the case to the committee. Neighbours or other interested parties may speak. The committee asks questions and deliberates. A decision is issued — approval, approval with conditions, or refusal.

Step 6 — The decision and appeal period. If approved, the decision is subject to a 20-day appeal period during which any person who appeared at the hearing may appeal to the Ontario Land Tribunal (OLT). Once the appeal period passes without an appeal, the decision becomes final and the building permit application can proceed.

How to Improve Your Chances of Approval

Minimize the variance request. The smaller the deviation, the easier it is to satisfy the “minor in nature” test. If your design can be modified to reduce the variance from 30% to 15% without materially affecting the project, make that modification. Every increment of reduction strengthens the application.

Prepare a thorough planning justification. A generic letter that lists the four tests without meaningfully addressing each one is not persuasive. The justification should include an analysis of comparable properties in the neighbourhood, aerial imagery showing the character of development, and a specific argument for each test based on the facts of this property and this project.

Address neighbour concerns proactively. If a neighbour is likely to oppose the application — particularly if the variance affects their property’s light, privacy, or views — contact them before the hearing. Understanding their concerns and modifying the design where possible can convert opposition into neutrality or even support. A letter of support from an adjacent neighbour carries significant weight with committee members.

Know the committee’s tendencies. Different committees have different track records on different types of variances. Understanding which arguments tend to be persuasive to a particular committee — and which objections they consistently raise — allows you to address them in the application rather than at the hearing.

Be prepared at the hearing. Committee hearings are not formal court proceedings, but they are not casual conversations either. The applicant should be able to clearly explain what variance is being requested, why the project cannot be redesigned to eliminate the need for the variance, and why each of the four tests is satisfied. Hesitation or confusion at the hearing undermines an otherwise strong application.