The plaintiff and the defendant concluded a building insurance contract effective from 5 August 2021. The plaintiff’s insured property suffered damage when a wall above the ceiling collapsed and fell through the ceiling. The collapse was caused by defective and/or poor workmanship during alterations carried out before the plaintiff purchased the property, of which he was unaware. The defendant repudiated the claim, relying on policy exclusions for damage caused or contributed to by defective workmanship or construction. The parties submitted a stated case under Rule 33, agreeing on the cause of the damage and the plaintiff’s lack of knowledge of the defect.