Trespass to Land by a Neighbour in Ontario: Rights and Remedies

Your property is yours. When a neighbour enters it — or allows their animals, vehicles, or structures to enter it — without your permission, they have committed trespass to land: a civil wrong under Ontario common law that entitles you to legal remedies regardless of whether the trespass caused you measurable financial harm.

Trespass is one of the oldest and most fundamental property rights in the common law. You do not need to prove that the trespasser intended to do something harmful. You do not even need to prove that you were harmed at all. The unauthorized entry itself is enough to found a claim — though the remedy you can obtain depends heavily on the nature, frequency, and consequences of the trespass.

What Is Trespass to Land?

Trespass to land is the direct, intentional entry onto another person's land without consent or legal authority. In the context of neighbour disputes, common examples include:

• A neighbour physically walking across your property without permission.
• A neighbour's contractor entering your yard to work without asking.
• Vehicles being parked on your driveway or lawn.
• A neighbour throwing objects — debris, cut branches, waste — onto your property.
• Animals (pets, livestock) repeatedly crossing onto your land.
• Allowing a drainage pipe to discharge water onto your property.
• A structure physically extending over your lot line (encroachment — see our separate article).

The trespass must be direct. Indirect interference with your property — such as smoke or smell drifting over — is governed by nuisance law rather than trespass. The distinction matters because nuisance requires proof of substantial unreasonable interference, while trespass does not.

Consent: The Central Question

Trespass requires that the entry be without permission. Express permission (you told them they could enter) and implied permission (the circumstances make entry reasonable) are both defences to a trespass claim.

In the neighbour context:

• If you gave verbal permission for a neighbour to access your property to retrieve their ball from your yard, that is consent for that specific purpose.
• Permission can be revoked — once revoked, any continued entry is trespass.
• A long history of tolerated use does not automatically mean consent has been given. You should give express permission for any use you genuinely sanction (especially to defeat adverse possession or prescriptive easement claims — see our articles on those topics).

Ontario's Trespass to Property Act

Ontario also has a provincial statute — the Trespass to Property Act — that creates a provincial offence (a quasi-criminal matter) for trespassing on private property. Importantly:

• The Act allows property owners to prohibit access to their property through signs or direct notice.
• A person who enters after receiving notice of prohibition is guilty of an offence and can be charged by police.
• Conviction can result in fines (as of writing — verify current fine amounts with ServiceOntario or a lawyer).

This provincial offence route is separate from your civil trespass claim. You can pursue both simultaneously — the police or a bylaw officer handles the provincial offence, while your civil claim is heard by a court.

Remedies for Civil Trespass

Nominal Damages

Where a trespass has caused no measurable financial harm, courts can award nominal damages — a small sum that recognizes the violation of your property rights without trying to compensate a loss. Nominal damages are principally symbolic, but they confirm your rights and can deter future trespass.

Compensatory Damages

Where the trespass caused actual harm — trampled garden, broken fence, property damage, costs of clean-up — you can claim the actual financial loss.

Aggravated and Punitive Damages

In cases of deliberate, repeated, or high-handed trespass, courts may award aggravated damages (for the additional distress caused) or punitive damages (to punish and deter). These are reserved for serious cases.

Injunction

The most powerful remedy in ongoing trespass cases. A court injunction orders the neighbour to stop entering your property. Breach of an injunction is contempt of court — a serious matter that can result in fines or imprisonment. Where trespass is repetitive and the neighbour ignores warnings, an injunction is often the only effective remedy.

When Trespass Overlaps With Other Claims

Many neighbour disputes involve multiple overlapping legal theories:

A lawyer can assess which claims are strongest on your specific facts and frame the case accordingly.

Practical Steps When a Neighbour Trespasses

1. Document the trespass: Photograph or video the entry, the damage, and the trespasser if possible.
2. Give written notice: A written notice that access is not permitted is important for establishing knowledge and removing any claim of implied permission. Keep a copy.
3. Contact bylaw or police: For ongoing trespass, a call to bylaw enforcement or police establishes an official record and may deter further behaviour.
4. Get a lawyer: If the trespass is ongoing, involves damage, or the neighbour refuses to comply with notices, a lawyer can send a formal demand and advise on whether injunctive relief or a damages claim is warranted.

Frequently asked questions