Meanwhile Heron, of which Ronson is both chief executive and 5% shareholder, is embroiled in one of London's biggest-ever planning inquiries over the proposed Heron Tower. An application to redevelop the site at 110 Bishopsgate was submitted in September last year and permission was granted by the Corporation of London in January. But an outcry by English Heritage sparked a fresh inquiry by planning inspector Neil Holt and this has been running for the past five weeks in a dusty backroom at Guildhall. After the inquiry this week, Holt will make his recommendations to Stephen Byers, Secretary of State for the Environment, Transport and the Regions. Heron is strongly tipped to win, which will pave the way for more Square Mile skyscrapers. Adam Coffer, news editor of Estates Gazette, said: 'It is not overplaying it to say that this will decide the future of the City.'