Occupiers' Liability: Your Duty to Everyone on Your Property

Occupiers' liability is your legal duty to take reasonable care that people who come onto property you occupy or control are reasonably safe. Most provinces have written the duty into statute — Ontario, British Columbia, and Alberta each have an Occupiers' Liability Act — and where no statute applies, the common law imposes much the same obligation.

Two details surprise people. First, an "occupier" is whoever has control of the premises, not just the owner: tenants qualify, and a landlord and tenant can owe duties over the same property at the same time. Second, the duty covers essentially everyone who enters lawfully — guests, delivery drivers, contractors, trick-or-treaters — and even trespassers are owed a reduced duty: broadly, you can't set out to harm them or act with reckless disregard.

What duty do I owe a trespasser?#

A much lower one than you owe an invited guest, and this is worth understanding on its own rather than as a footnote. Most provincial Occupiers' Liability Acts set the trespasser standard well below "reasonably safe": broadly, an occupier can't create a danger with the deliberate intent of causing harm, or act with reckless disregard for a trespasser's safety. That's a materially easier bar to clear than the duty owed a lawful visitor, and it's why a homeowner generally has far less to fear from an uninvited intruder's injury claim than from a guest's.

The reduced duty isn't unconditional, though. Courts weigh things like whether children are foreseeably drawn onto the property — an unfenced pool or a visibly climbable structure can narrow the gap between the trespasser standard and the ordinary one — and some provinces set out a separate, even lower duty for people on rural, recreational, or vacant land. Treat "trespassers get less protection" as generally true and "trespassers get none" as generally false.

Does occupiers' liability work the same way in every province?#

The core idea does — reasonable care for lawful visitors, a lower bar for trespassers — but the statutory details differ. Ontario, British Columbia, and Alberta each have their own Occupiers' Liability Act, and each addresses trespassers, and rural or recreational land, with its own wording and its own provisions:

Treat this table as the shape of the pattern, not the final word — the exact wording, and which section of which Act applies, is something to confirm for your own province rather than assume from a general description like this one.

Why it matters to you#

Occupiers' liability is the legal engine behind most home-related lawsuits: slip-and-falls on icy walkways, stair and deck failures, pool and trampoline injuries, a guest hurt at a backyard party. The standard is reasonableness judged after the injury — did you clear the ice promptly, fix the loose railing, latch the pool gate? And serious cases carry serious numbers. A fall that causes a head or spinal injury is claimed like any catastrophic injury, with future care and lost income on the table, and Canadian awards in that territory can exceed the $1 million liability limit found on most home policies. Winter makes this a particularly Canadian exposure: ice forms nightly for five months, and the duty to deal with it is yours.

In practice#

• A guest falls down basement stairs with no handrail — a classic occupiers' claim against the homeowner's liability coverage.
• A tenant hosts a party and a visitor is hurt on a deteriorating balcony. The claim may name the tenant and the landlord: both can be occupiers.
• A neighbour's child climbs into an unfenced pool. Courts generally expect more care where children are foreseeable, invited or not.

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