Municipal Liability Expert Series: DE-constructing Building Department Claims

Municipalities across Ontario face mounting pressure from liability claims tied to building department oversights. A February 2025 Ontario Court of Appeal ruling in Huether v. Sharpe has capped exposure on decades-old permits, preventing endless lawsuits. This decision arrives amid skyrocketing insurance premiums driven by these very claims.

Building departments enforce codes through permits and inspections to safeguard public health and safety. Claims surge when latent defects—missed during construction—surface years later, often blaming municipal negligence. Property values have soared, inflating claim sizes; a cottage defect might now cost millions to fix.

The Huether case stemmed from a 1986 permit left open without final closure. Buyers in 2021 uncovered code violations and sued the Township of McMurrich Monteith. The appeal court ruled no ongoing duty to monitor dormant files exists. It applied the 15-year ultimate limitation period under Ontario's Limitations Act, barring claims after January 1, 2019 for pre-2004 acts.

This reverses a 2024 lower court view that municipalities must continually track open permits until inspections finish. Earlier, the 2021 Breen v. Lake of Bays decision held a township liable for skipping a final inspection on a 1988 cottage, despite no builder request. Such precedents fueled fears of perpetual liability.

Impacts hit hard. Smaller rural municipalities, like those in cottage country, struggle with high-value properties and limited staff to chase old permits. Urban areas see risks in dense infill projects. Property owners bear repair costs if claims time out, while builders or architects often evade blame—uninsured or defunct.

Broader trends amplify urgency. Extreme weather events, like the May 2022 derecho storm, compound property losses. A hard insurance market, with global factors like inflation, has doubled some municipal premiums since 2017. Building code claims now rank among top cost drivers, per industry reports.

Affected parties include taxpayers funding higher municipal budgets, insurers passing on risks, and homeowners facing unsafe structures. In Ontario alone, associations note these claims strain operations, diverting resources from services like roads or parks.

The ruling brings certainty. Municipalities can now archive old files without fear, focusing on current enforcement. Yet, it underscores the need for better record-keeping and proactive inspections to curb future liabilities.