Supreme Court Provides Guidance On Conflicts Between Insurance Policy Provisions

In Emond v Trillium Mutual Insurance Co, 2026 SCC 3, the Supreme Court of Canada addressed an apparent conflict within a homeowner's insurance policy between a guaranteed rebuilding cost endorsement and an exclusion limiting coverage for regulatory compliance costs to $10,000. A majority of the Court held that the policy was not misleading when read as a whole and that the "nullification of coverage" doctrine did not apply. In doing so, the Court clarified and regularized the nullification doctrine across Canada, resolving prior provincial divergence.

Background

The Emonds lived in an environmentally sensitive area subject to stringent construction regulations. Their home insurance policy with Trillium Mutual Insurance Company included an optional "Guaranteed Rebuilding Cost Coverage" endorsement (the "GRC Endorsement").