Date: January 30, 2026

On Appeal from the Court of Appeal for Ontario

Insurance — Property insurance — Standard form insurance contract —Interpretation — Guaranteed rebuilding cost endorsement — Legal compliance cost exclusion clause — House insured through standard form residential home insurance contract deemed total loss after flood — Insurance contract containing guaranteed rebuilding cost endorsement but also containing clause excluding increased costs of compliance with zoning and construction-related laws — Local conservation authority’s requirements imposing additional costs to rebuild house — Whether guaranteed rebuilding cost endorsement entitles homeowners to full rebuilding costs of house including costs of compliance with conservation authority’s requirements despite compliance cost exclusion clause — If not, whether nullification of coverage doctrine prevents application of compliance cost exclusion clause.