HSBC aims to sublet 50% of its London-based headquarters at Canary Wharf, ceo Michael Geoghegan told a financial conference in Lisbon last week. 'I've challenged us within seven years to have 50% of that building empty, to sublet to someone else. I don't think we’re a really progressive, perceptive company if 8,000 people have to get up every day at an unearthly hour and go back again,' the Times newspaper reported.