"We're trying to extend dwell time in a positive way, " says Camille Waxer, chief administrative officer at Canary Wharf Group PLC.

WSJ: Shopping Centers Take a New Spin on Leisure

Canary Wharf Group PLC, which benefits from a working population of 100, 000 in London's second financial center, has a 100% occupancy for its shops and has found tenants for all the stores vacated by failed retailers, except for one, which is currently under offer, the company said.

WSJ: U.K. Retail Rents Drop as Stores Close