How to Sever a Property in Ontario: The Survey Steps Explained

Maybe you’ve got a big lot and a second house in mind. Maybe a family member needs a place to live, or you’d like to sell the back half of the yard and put that money to work. Whatever the reason, the idea is the same: turn one lot into two.

It’s possible in Ontario, but it isn’t quick, and it isn’t something you can do with a handshake and a fence. Here’s how the process generally works and where a land surveyor fits into it.

What “severance” actually means

Severing a property means legally dividing one parcel of land into two or more separate parcels, each with its own legal description. In Ontario this is usually called a consent, because you’re asking your municipality for permission to split the land.

That permission matters. Without it, you can’t sell or register a piece of your lot as its own property, no matter how obvious the dividing line looks on the ground.

The process, step by step

Every municipality has its own habits and paperwork, so treat this as the general shape of things rather than a checklist you can follow blind.

1. Talk to the planning department first. Before spending money, find out whether your idea has a realistic chance. Municipal planners can tell you what the zoning allows, what lot sizes they expect, and what problems they’re likely to raise. Many municipalities offer a pre-consultation for exactly this.

2. Get a survey of the property. This is where we come in. The application needs accurate information about your lot: its dimensions, where the existing buildings sit, and how the new lines would fall. A boundary survey gives your planner and the committee something solid to work from, and it can reveal problems early, like a garage that would end up too close to the new lot line.

3. Prepare and submit the application. This is typically handled with a planner or lawyer, and it includes a sketch showing the proposed split. Fees vary by municipality, and the application goes to whichever body handles consents locally. In Toronto and many other places that’s the Committee of Adjustment; elsewhere it may be a land division committee.

4. Notice, comments, and a decision. Neighbours and agencies get notified and can comment. The committee then approves your application (usually with conditions), refuses it, or asks for changes.

5. Meet the conditions. This is the long part. Conditions often include things like servicing arrangements, fees, or other requirements the municipality attaches. One condition that comes up a lot is a registered reference plan describing the new parcels. There’s normally a limited window to satisfy everything, commonly around a year, so don’t let the paperwork sit.

6. Final consent and registration. Once conditions are cleared, the municipality issues its final consent, and your lawyer registers the documents that make the split official.

Some projects also need a minor variance along the way, for example when the new lot is slightly smaller than zoning normally allows. That’s a separate application, and it makes accurate survey drawings even more important.

Where the survey work fits

Two pieces of survey work show up in most severances.

First, the survey that supports your application. It shows the existing property and how it would be divided, so the committee isn’t deciding based on guesswork. If you’re not sure what that looks like, our overview of a boundary survey explains what’s measured and shown.

Second, the reference plan. Once the committee approves your severance, the new parcels usually need to be legally described and registered. That’s what a reference plan does, and we’ve explained it in detail in our guide to the reference plan in Ontario.

What tends to trip people up

A few patterns show up again and again:

• Not checking zoning first. The lot looks big enough, but the rules say otherwise.
• Existing buildings too close to the new line. A shed or garage that works fine today can become a problem the moment a lot line moves next to it.
• Underestimating the timeline. Notice periods, committee schedules, and conditions all take time. Plan in months, not weeks.
• Letting conditions lapse. If the deadline passes, the approval can lapse with it, and you may have to start over.
• Relying on an old survey. If anything’s been built or changed since it was done, it won’t reflect the property as it stands.

Is severance worth it?

Sometimes yes, sometimes no. A well-located lot in a growing area can be worth a lot more split than whole. But the costs add up: surveys, planning help, legal fees, application fees, and servicing work. It helps to talk through the numbers with a planner and your lawyer before committing.

If you’re in a fast-growing city like Brampton, where older, larger lots are increasingly being divided, our piece on land surveying in Brampton covers some of the local factors that come into play.

Getting the survey side right

Severances live or die on accurate information. AKM Surveying works with homeowners, planners, and lawyers across Toronto and the GTA to prepare the survey drawings and reference plans a severance depends on, all signed by a licensed Ontario Land Surveyor.

Thinking About Splitting Your Lot?

Start with an accurate survey so your application is built on solid numbers.

Frequently Asked Questions

What does it mean to sever a property in Ontario? It means legally dividing one parcel into two or more separate lots, which requires consent from your municipality.

Do I need a survey to sever my property? In practice, yes. The application relies on accurate lot dimensions and building locations, and a reference plan is commonly required to describe the new parcels.

Who approves a severance? Your local committee, usually a Committee of Adjustment or a land division committee, depending on the municipality.

How long does a severance take? It varies a lot by municipality and by how complicated your case is. Expect months rather than weeks, and ask your local planning department for current timelines.

Can I sever a lot without a lawyer or planner? Technically you can apply on your own, but most people work with a planner and a lawyer because the process and conditions are easy to get wrong.