Holborn is an area of central London, renamed by Property Developers and locals as Midtown due to its central location between the City and the West End. The area has a mixture of modern office buildings and Period properties, the later are slowly being converted in to luxury residential apartments. Lincoln's Inn Fields is the largest public square in London. The square was laid out in the 1630’s and is home to a large number of legal firms. The UK’s diamond trade is based in Hatton Garden.