Property Line Encroachment Laws in Ontario
Property line disputes in Ontario: start with evidence, not the fence
Property line encroachment laws Ontario issues should be approached with evidence, not by moving a fence, cutting a tree or removing a structure. Check the title records and available plans first, and obtain an Ontario Land Surveyor’s opinion when the location of the boundary matters.
A boundary dispute is a disagreement about where one property ends and the next begins, or about the right to use land near that line. An encroachment is a physical intrusion onto another person’s land, such as a fence, shed, driveway, retaining wall, eaves or addition crossing the boundary. It may amount to trespass, but the facts, title and remedy still need to be assessed before either owner acts.
Do not assume that a fence, hedge, garden bed, satellite image or a neighbour’s recollection establishes the legal boundary. Removing or damaging something that is later found to be on the neighbour’s land, jointly owned, or permitted by an agreement can create a new dispute and possible liability under the Trespass to Property Act or at common law.
How to find your property line before you act
You can start identifying a property line by reviewing the legal description, parcel register and registered plans, but those records may not answer where the line falls on the ground. A current opinion from an Ontario Land Surveyor is often needed when a fence, structure or tree is close to the apparent line.
To look for records, search OnLand, Ontario’s land registration system, using the property’s address or legal description. The parcel register can identify the PIN, registered owners, instruments and legal description. Registered reference plans, subdivision plans and older survey plans may be available through the records, although interpreting them properly can require professional help.
If you are asking how to get a copy of a property survey in Ontario, first check the documents received when the property was purchased, ask the seller or former owner if appropriate, and ask the real estate lawyer who acted on the purchase whether a survey was provided. A surveyor may also be able to locate historic survey material, but an old plan may not show later construction or resolve a present-day disagreement.
How do you determine property lines without a survey? You can make a preliminary assessment from title documents, plans and visible survey monuments, but it is not conclusive. Online maps are approximate, and an old fence or landscaping may simply show where someone chose to build, not where the legal line lies.
When a survey is needed and who pays for it
The owner seeking certainty commonly arranges and pays for boundary work first, but the cost can be shared by agreement or addressed in a settlement or proceeding. There is no automatic rule that makes one neighbour pay merely because a boundary question has arisen.
An Ontario Land Surveyor can review the applicable evidence and perform the work necessary to express a professional boundary opinion. A Surveyor’s Real Property Report (SRPR) commonly depicts visible improvements in relation to the property boundaries and can identify apparent encroachments, but the scope of work should be discussed directly with the surveyor. A new or updated survey may be more appropriate where marks are missing, plans conflict, or a project is proposed close to the line.
For example, a buyer who owns a $1.1 million Toronto semi-detached home may discover that a proposed rear addition would sit close to the side lot line. Before paying a contractor or applying for permits, the owner could retain a surveyor to assess the boundary evidence and locate the relevant line. If the survey shows the planned wall would cross onto the neighbour’s land, redesigning before construction is ordinarily far less disruptive than negotiating access or removal after the work is complete.
Where both neighbours accept that the line needs to be located, they may agree in writing to jointly retain a surveyor and share the cost. If the facts are contested or an encroachment is significant, learn when it is useful to involve a property dispute lawyer near me before proposing terms or relying on survey material.
What to do when a neighbour may be encroaching
If a neighbour may be encroaching, preserve the evidence, verify the boundary and raise the issue calmly before demanding removal. Do not use self-help by tearing down a fence, moving a shed, blocking access or cutting a tree unless you have obtained advice appropriate to the facts.
Build a practical file before the conversation becomes contentious:
- Take dated photographs and video of the fence, structure, driveway, tree, markers and surrounding area.
- Save purchase documents, parcel registers, plans, surveys, municipal permits and correspondence.
- Write a chronology showing when you first noticed the issue, when construction occurred if known, and each discussion with the neighbour.
- Check whether title shows an easement, right-of-way, agreement or other registered interest that could explain the use.
- Obtain professional boundary evidence if the issue affects land, access, construction, a sale or a substantial expense.
Once you have reliable information, explain the concern factually and give the neighbour an opportunity to respond. A written agreement should come before either party moves a structure or starts new work. It should identify the property, the issue, the agreed work, responsibility for costs, timing, access and what happens if work is not completed.
A residential dispute lawyer can review title, plans, survey evidence and the practical risks before sending a demand letter. The appropriate request may be removal, access for survey work, a temporary standstill, compensation, a negotiated right to use land, or simply more information; it depends on the evidence and the harm involved.

Trees and property lines
For a tree dispute, confirm the boundary before treating the tree as a boundary tree. A tree whose trunk grows on the boundary is jointly owned by the adjoining owners under section 10 of Ontario’s Forestry Act.
That rule does not mean either owner can unilaterally remove, damage or materially alter a boundary tree. The tree’s condition, risk, municipal tree-protection rules, the exact trunk location and any proposed pruning or removal all matter. An arborist may be needed to assess the tree’s health and risk, while a surveyor may be needed to establish the line.
Overhanging branches and roots involve different questions from ownership of a boundary tree. Damage, safety concerns, fallen trees and municipal bylaw requirements are fact-sensitive, so avoid cutting beyond the boundary or taking irreversible action before obtaining advice. This is particularly important where a mature tree supports a retaining slope, affects a structure, or is subject to municipal protection.
Fences and the Line Fences Act
The Line Fences Act addresses the construction, repair and cost of line fences and provides procedures involving fence-viewers in applicable circumstances. It does not authorize fence-viewers to decide a disputed legal property boundary.
Can you put a fence on the boundary line, and how close can you build a fence to it? Verify the boundary first, then check the applicable municipal zoning and fence bylaws, permit requirements and any title restrictions. A fence built just inside one owner’s land may avoid a boundary-location dispute, but it can still create practical maintenance, drainage or access issues.
Fence-viewers may assist with particular line-fence questions under the Act, but their process is not a substitute for a survey or a court determination where neighbours disagree about the true line. For a short explanation of long occupation, fences and ownership claims, read markham real estate lawyer guidance on property issues before treating an existing fence as decisive.

Are old or “grandfathered” property lines binding?
An old fence, shed or long-standing use does not by itself change the legal boundary. “Grandfathered” may describe how a municipal rule applies to an existing structure, but it is not a general rule that turns a fence line into an ownership line.
Historic occupation can still be legally important. For example, a claim based on adverse possession may require careful review of the occupation, the title history and whether the land is governed by the Land Titles Act or a transitional regime. Do not rely on an assumption that years of use either automatically transfers land or has no legal effect.
Consider a seller whose detached garage has stood near an old fence for decades and who receives a survey showing part of it may cross the line. Before listing the property, the seller should obtain legal advice on disclosure, title, the survey evidence and realistic resolution options. Waiting until a buyer’s lawyer raises the issue can delay the transaction and reduce the parties’ flexibility.
Resolving a boundary dispute without court
Many property line disputes can be resolved without court through informed negotiation, a lawyer’s letter, mediation and a signed settlement. The most useful settlement is specific enough to prevent the same disagreement from returning when either property is sold.
Mediation is voluntary unless the parties agree otherwise, and a neutral mediator helps them explore terms without deciding the boundary. A Toronto mediation lawyer can help a party prepare for mediation, assess proposed terms and document a settlement that reflects the title and survey evidence.
If the arrangement permits ongoing access, shared use or an encroachment to remain, obtain title advice before signing. A personal promise may not adequately protect either party on a future sale, and a permanent arrangement may require a properly documented interest or other legal solution. For maintenance questions involving registered access rights, see markham real estate lawyer information about easements and rights-of-way.
When court or a formal boundary process may be necessary
Court or a formal boundary process may be necessary when the parties cannot agree on the line, an important structure crosses it, or negotiations fail. Depending on the claim and evidence, the Ontario Superior Court of Justice may be asked for a declaration, damages, injunctive relief or another appropriate remedy.
The Boundaries Act may be relevant in appropriate boundary matters, but its availability and procedure depend on the circumstances and should be assessed before it is pursued. A lawyer will consider the survey evidence, title documents, delay, the parties’ conduct, the seriousness of the interference and whether the remedy sought is proportionate.

Is there a statute of limitations on a property line dispute?
There is no single limitation-period answer for every property line dispute because the deadline depends on the claim and remedy. Get advice promptly rather than relying on an old fence, a delay in objecting or a general assumption about the Limitations Act, 2002 or the Real Property Limitations Act.
A claim for damages, a request for injunctive relief, a title-related remedy and an adverse-possession issue can raise different timing questions. Delay may also affect evidence, negotiation leverage and a court’s assessment of the case even where a claim is not clearly barred. Preserve records and seek advice before starting a project, signing an agreement, listing the property or responding to a threatened lawsuit.
When to call a real estate lawyer
Call a real estate lawyer when the boundary evidence conflicts, the encroachment is more than minor, or a proposed solution will affect title, a sale or future use of the property. Early advice is particularly useful before either neighbour takes irreversible action.
- Competing surveys, missing survey monuments or unclear plans;
- A shed, driveway, retaining wall, addition, eaves or fence alleged to cross the line;
- A conflict about a boundary tree, removal, damage or access for repairs;
- A neighbour who refuses to discuss the issue or demands immediate action;
- Proposed settlement, licence, access arrangement or shared-use terms;
- A pending sale, purchase, refinancing or disclosure concern; or
- A demand letter, threatened claim or formal proceeding.
Our real estate lawyers can review the title and survey material, identify the legal questions, communicate with the neighbour or their lawyer, and coordinate with the Ontario Land Surveyor where necessary. The aim is to help you make an informed decision about the next practical step.
Ontario property line dispute FAQs
What is an encroachment?
An encroachment is a structure, improvement or use that extends onto land belonging to someone else without a legal right. A fence, shed, garage, driveway, eaves, landscaping or retaining wall can be an encroachment, but the boundary and any registered rights must be checked first.
Can I get my neighbour’s survey?
You can ask your neighbour to share a survey, but they are not generally required to provide a private survey simply because you request it. You may locate registered plans through OnLand or retain your own surveyor if certainty is needed.
Can I build near the property line?
You can only plan safely near a property line after confirming the line and reviewing municipal bylaws, permits, setbacks, title restrictions and construction requirements. A contractor’s measurement from an existing fence is not a substitute for reliable boundary evidence.
What happens if a survey conflicts with a fence?
A survey that conflicts with a fence means the fence should not be treated as conclusive proof of ownership. Preserve the evidence, avoid moving the fence immediately, review the title history and obtain legal advice about the appropriate response.
Does title insurance cover an encroachment?
Title insurance coverage for an encroachment depends on the policy wording, the timing of the issue, exclusions, what was known and the particular facts. Review the policy and obtain advice before assuming that a claim will be covered; see markham real estate lawyer information on title insurance questions.
Speak with a Toronto real estate lawyer
Getting advice early can help you assess the boundary evidence, avoid self-help mistakes and document a workable response to a suspected encroachment.
Call 416-321-8766 or request a quote to discuss your matter with Zinati Kay.
John Zinati is a veteran experienced real estate lawyer and partner at Zinati Kay Barristers & Solicitors. He holds a Bachelor of Arts from the University of Toronto and a Bachelor of Laws from Osgoode Hall Law School.
































Buyers should also be cautious about advertisements for “free grants to help with closing costs.” Confirm who offers the program, whether the funds are a grant or repayable loan, and whether the lender permits the source of funds.

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