Some insurers are beginning to treat each defect within a construction-defect suit as a separate occurrence. (Photo: iStock)

Much has been written about and litigated regarding the topic of an “occurrence” as it is applied within the four walls of a commercial insurance policy.

There was the famous World Trade Center case (SR International Business Insurance Co. Ltd v. World Trade Center Properties LLC, et al) in which the events of 9/11 were mostly defined as a single occurrence.

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