Terrorism premiums for some of London's landmarks have plunged by almost 50% over the summer, according to reports.
It is believed that Lloyd's underwriters have undercut the government's own terrorism insurance scheme, Pool Re.
Pool Re-backed insurers must include the cost of the entire property portfolio in the premium, whereas Lloyd's insurers are not constrained by Pool Re's rules and are offering bespoke cover for single buildings.
Aon associate director Chris James said the cost of terrorism cover had initially surged by 400% after 11 September, but were now about 200% higher than in the pre-11 September period.
