BRITAIN IRELAND SCOTLAND YOUNG PEOPLE WOMEN Ian and Richard Livingstone RESULTS 2006 Ranking Worth Industry 117 £537m Property Brothers Ian, 43, and Richard, 41, made at least £50m from the sale of 180 petrol stations in February. They own the London Hilton and the Empire cinema in Leicester Square. Their main holding company, London & Regional Group Holdings, had net assets of £475.4m last year when it made £80.8m profit. They are worth £537m. RESULTS 2005 Ranking 192= Worth 2005: £250m