The applicant construction contractor sought a declaration that an insurer owed it a duty to defend as an additional insured under a project‑specific commercial general liability policy issued to a subcontractor.
The underlying action involved a pedestrian trip‑and‑fall allegedly caused by a sunken paver installed during a streetcar island construction project.
The insurer argued the policy only applied to liability arising from the subcontractor’s operations and that the pleadings did not allege such liability.
The court held that the pleadings contained undifferentiated negligence allegations against all defendants and could potentially attribute liability to the subcontractor’s work.
Applying established duty‑to‑defend principles, the court found that any ambiguity must be resolved in favour of the insured and concluded the insurer had a duty to defend.