Supreme Court Ruling On GRC Coverage In Emond v. Trillium Mutual Insurance

In its Jan. 2026 decision in Emond v. Trillium Mutual Insurance, the Supreme Court of Canada held that a homeowner’s policy did not cover added costs to comply with conservation authority requirements in rebuilding a home following a loss, notwithstanding that the policy included a guaranteed rebuilding cost (GRC) endorsement.

The 7-1-1 decision offers clarification on the scope and limitations of GRC coverage specifically, while also providing further direction on how the Court approaches policy interpretation generally. It also reinforces the structured approach to insurance contract interpretation outlined in Ledcor, with the Court clarifying that endorsements are interpreted within the policy as a whole, identifying when language in an insurance contract is ambiguous, and explaining when the nullification of coverage doctrine would justify a departure from language that is unambiguous.