Double insurance: the effect of “other insurance” clauses

In Allianz Insurance Australia Ltd v Certain Underwriters at Lloyd’s of London [2019] NSWCA 271 the New South Wales Court of Appeal has reversed the first instance decision of Rees J, discussing a question unresolved in England, namely, whether a policy which is stated to be in excess of any other insurance in place responds to a claim where the other policy excludes cover in the event of other insurance.

Allianz : the facts