Claims based on false or careless statements that another party reasonably relied on to its detriment, common in real estate and commercial disputes.
A Puslinch century farmhouse looked beautifully renovated. The structural work had no building permit, and no one disclosed it. In Slatkovsky v Machado, the Ontario Superior Court held both the vendors and their double-ending agent liable, awarding the buyers $150,318 and confirming that the owner’s permit duty cannot be passed off to a contractor.
A purchaser must inspect, but a vendor cannot hide behind “buyer beware” after actively concealing what is wrong with a home. In Austin v MacFarlane, 2026 ONSC 463, a North Bay buyer discovered foundation cracks, hidden mould, and an improperly built deck days after closing, with repairs exceeding $119,000. The Ontario Superior Court explains where vendor silence ends and active concealment begins.
Since the Court of Appeal decided Bowman v Martineau, the case is often cited for the idea that damages in professional negligence are always measured by diminution in value. In this in-depth commentary, Paul Cahill argues that is a misreading and sets out how damages in these cases should actually be quantified, including when cost of repair, rather than diminution in value, is the right measure.