Willis Building (London) 2004 and 2008 under the management of Mace and represented a significant addition to the City of London skyline, becoming its fourth-tallest building after Tower 42, 30 St Mary Axe and CityPoint. The core was topped out in July 2006 and the steelwork completed in September that year. Cladding began in July 2006 and the structure was externally completed by June 2007. It was internally fitted out and officially opened in April 2008. The building was the first in a wave of new tall towers for London's primary financial district. Others included The Pinnacle, the Leadenhall Building and the Heron
30 St Mary Axe on the design of the building, said in 2011 that he believed the style was now out-moded: "I was looking at the glass all around and [thought], 'Why on earth did we do that?' Now we would do things differently". The building featured in recent films such as "Harry Potter and the Half Blood Prince", Russell Crowe's "A Good Year", Sharon Stone's "Basic Instinct 2", and Woody Allen's "Match Point" and, rechristened the "Spirit of London", became the spaceship centrepiece of Keith Mansfield's 2008 novel "Johnny Mackintosh and the Spirit of London". In September 2006, the building was put up