It is located on Lime Street in the City of London financial district.

The building was designed by Norman Foster and developed by British Land.

It stands opposite the Lloyd's building and is 125 metres (410 ft) tall, with 26 storeys.

In total, there are 475,000 square feet (44,128.9 m2) of office floor-space, most of which was pre-let to the insurance broker Willis.

The Willis Building was constructed between 2004 and 2008 under the management of Mace[3] and represented a significant addition to the City of London skyline at the time, becoming its fourth-tallest building after Tower 42, 30 St Mary Axe and CityPoint.