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Adverse Possession in Ontario: Can a Neighbour Claim My Land?

Worried a neighbour could claim part of your land in Ontario? Learn the 10-year limit, how Land Titles changes things, and steps to protect your property.

Real Estate5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • In Ontario, for land outside Land Titles, the general limit to recover land is ten years after the right first accrued.
  • When that time runs out, the title of the person who could have recovered the land is extinguished.
  • For land registered under the Land Titles Act, no adverse title can be acquired by any length of possession.

A neighbour's garden bed, driveway, shed or fence creeps over the line. It has been that way for years, and you wonder whether they could one day claim that strip as their own. This idea is usually called adverse possession.

Whether a claim is even possible in Ontario depends heavily on how your land is registered. This article explains the time limits, the main exceptions, and what you can do to protect yourself.

What adverse possession means

Adverse possession is a claim that a person who has occupied land that belongs to someone else, for long enough, has gained the right to it. In Ontario this works through time limits. If the true owner waits too long to act, the law stops them from recovering the land.

The Real Property Limitations Act says that no one may enter land or bring an action to recover land except within ten years after the right to do so first accrued. When an owner is dispossessed, that right accrues at the time of the dispossession or discontinuance of possession.

When the time limit expires, the right and title of the person who could have recovered the land is extinguished. This is the basis for adverse possession claims to land outside the Land Titles system. The courts have also developed tests about the kind of possession that counts. Those come from case law, and a lawyer can explain how they apply to a specific set of facts.

Land Titles changes the answer

For land registered under the Land Titles Act, no title, right or interest that is adverse to the registered owner can be acquired by any length of possession or by prescription. This applies despite the Real Property Limitations Act. In plain words, adverse possession cannot start running once land is in Land Titles.

Type of landGeneral position
Land in Land TitlesNo adverse title can be acquired by length of possession
Land still in the older Registry systemTen-year limit to recover land can apply

There is a narrow exception. The Land Titles bar does not prejudice an adverse claim based on possession by a person who was in possession when the first owner was registered with a possessory title only. Claims that were already complete before land moved into Land Titles are also a question for a lawyer to review.

Exceptions that can change the time limit

These exceptions are fact-heavy. Whether one applies to your strip of land is something a lawyer should confirm.

Fences, surveys and a related issue: easements

The Line Fences Act covers only fences on a boundary line, and in most of Ontario it lets neighbours settle fence disputes through fence-viewers appointed by the municipality. That process deals with sharing the work and cost of a fence, and it does not decide where the line is. The government says owners must settle boundary disputes themselves, often with legal advice and a survey.

Only a licensed person may prepare plans that determine or establish a boundary, subject to supervised staff working under a licensed member. If the boundary itself is in doubt, an application can be made to the Director of Titles to confirm it under the Boundaries Act.

A similar time-based idea exists for rights of way. A claim to an easement cannot be defeated if the right was actually used without interruption for twenty years, and after forty years of such use it is absolute. The 40-year right does not arise if the use was by consent or agreement expressly given in writing. Land Titles also bars new claims of this kind on registered land.

What to do next

Frequently asked questions

How long does someone need to occupy land to claim it in Ontario?

The general limit to recover land is ten years after the right first accrued. That period matters mainly for land outside Land Titles. Whether a claim would succeed also depends on case law tests that a lawyer can explain.

Can a neighbour claim part of my land if it is in Land Titles?

Generally no. For land registered under the Land Titles Act, no adverse title can be acquired by any length of possession. There is a narrow exception tied to possession when the first owner was registered with a possessory title only.

Does a fence on the wrong spot change who owns the land?

How a fence's location affects ownership depends on your situation, so it is worth confirming with a lawyer. The Line Fences Act process does not decide where the property line is. Even a Line Fences Act award that places a fence partly on either owner's land does not affect who owns the land.

Does giving my neighbour permission to use the strip help?

It can matter. Use by written permission does not give rise to the 40-year absolute easement right. Written acknowledgments of title can also affect the limitation period. Get legal advice before signing anything.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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