Severing a Lot in Ontario: What Consent Involves

Published 12 November 2026 · By Jatin Dua, Broker of Record, RE/MAX Quantum Realty

You have a wide lot and a thought: could this be two lots? In Ontario, splitting one parcel into two requires a consent under section 53 of the Planning Act. People call it a severance. It is one of the highest-return projects available to a homeowner and one of the least predictable, so it is worth understanding the process before you spend anything.

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What consent is, and why you cannot skip it

Ontario controls the division of land. You cannot simply sell off half your lot. Without consent, a conveyance of part of a parcel generally does not achieve what you intended, and the problem surfaces later at the worst possible moment — usually when a buyer’s lawyer finds it.

So the consent is not paperwork at the end. It is the thing that makes the second lot exist.

Who decides

Council or the Minister decides, and council may delegate the authority to a committee of adjustment, a land division committee, or an officer. In most of the GTA you are applying to a committee of adjustment.

An application can be made by the owner, a chargee, a purchaser under an agreement of purchase and sale, or a duly authorised agent. That last point is useful: you do not have to own the land to apply, which makes a severance workable as a condition of a purchase.

What they are deciding

The authority may grant a provisional consent, and it can attach conditions. In deciding, it must have regard to the matters set out in subsection 51(24) of the Planning Act — the planning criteria that cover things like the suitability of the land for its proposed purpose, the dimensions and shapes of the lots, and conformity with planning instruments.

In practice, in an established neighbourhood, the question that decides most applications is whether the resulting lots are consistent with the prevailing pattern. Two lots of a width that appears repeatedly on the same street is a much easier case than two lots narrower than anything around them. Walk the street and measure frontages before you apply — you will learn more about your odds in an hour than from any amount of speculation.

The two-year clock on conditions

This is the part applicants most need to know.

Since January 1, 2022, applicants have two years to fulfil the conditions attached to a provisional consent — up from one year previously. The two years run from the later of the notices of decision. If there is an appeal, the period runs from the Tribunal’s order or notice instead.

If the conditions are not satisfied in time, the application is deemed refused. Not extended, not revived — refused. You start again, with new fees and a fresh application.

Conditions commonly involve a reference plan of survey, payment of fees or cash-in-lieu of parkland, servicing or easement arrangements, and a lawyer’s undertakings. Some of these take real time, and the long pole is usually a surveyor’s or the city’s schedule rather than anything you control. Treat two years as less generous than it sounds, and start on the conditions the week the decision comes.

The certificate

Once consent is given and the conditions are met, the clerk issues a certificate of consent. The certificate is conclusive evidence that the Act’s requirements were complied with and that the authority had jurisdiction, and once issued, no action may be brought to question the consent’s validity.

There is also a useful provision for the land you keep: under subsection 53(42.1) you can request a second certificate for the retained land by providing a registrable legal description. The application form asks whether you want it, and a lawyer’s statement is required. Say yes — a certificate on the retained parcel removes doubt about its status later, and it costs very little at the time.

Appeals

Consent decisions can be appealed to the Ontario Land Tribunal, and an appeal both delays the matter and restarts the clock on conditions from the Tribunal’s order. Neighbour opposition is the usual source. It is worth talking to the immediate neighbours before you apply rather than letting them first hear about it from a notice sign on the lawn.

Budget for the whole thing, not the application fee

The application fee is the smallest line. A realistic budget includes:

a surveyor, for the sketch with the application and the reference plan afterwards
a planner, where the case is not straightforward — and a planning opinion materially improves the odds in a contested application
a lawyer, for the conditions, the undertakings and the registration
municipal fees and any cash-in-lieu of parkland, which can be substantial
servicing — a new lot needs its own water, sanitary and storm connections, and these are frequently the largest single cost and the biggest surprise
development charges on the eventual new build

Get the servicing question answered early. A lot that is perfect in planning terms and requires a road cut and a new sanitary connection across the street can fail purely on arithmetic.

Before you spend anything

Check the zoning for minimum lot frontage and area in your zone, and compare with what two lots would be. If you need a variance as well, that is a second application and a second risk.
Measure the frontages on your street. Prevailing pattern is the heart of most decisions.
Ask the municipality for a pre-application consultation. Most will tell you candidly whether you are wasting your money, and that conversation is usually free.
Price the servicing before you apply.
Talk to the neighbours.

The honest summary

A successful severance can create substantial value, and the process is well defined: apply for consent, receive a provisional decision with conditions, satisfy the conditions within two years, obtain the certificate. The risks are not really legal ones — they are whether your lots fit the neighbourhood, and whether the servicing costs leave any profit. Answer those two before you hire anyone.

General information about the process, not legal or planning advice. Requirements, fees and timelines differ by municipality and the Planning Act has been amended repeatedly. Get a planner and a lawyer on a specific property.

Sources

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