30 St Mary Axe nearly oblivious to the tower's existence until directly underneath it. The building was constructed by Skanska, completed in December 2003 and opened on 28 April 2004. The primary occupant of the building is Swiss Re, a global reinsurance company, which had the building commissioned as the head office for its UK operation. The tower is thus sometimes known as the Swiss Re Building, although this name has never been official and has more recently fallen out of favour, since the company's main headquarters is in Zurich and the Gherkin name has become more popular. The building uses energy-saving methods which
St Andrew Undershaft St Andrew Undershaft St Andrew Undershaft is a Church of England church in the City of London, the historic nucleus and modern financial centre of London. It is located on St Mary Axe, within the Aldgate ward, and is a rare example of a City church that survived both the Great Fire of London and the Blitz. The present building was constructed in 1532 but a church has existed on the site since the 12th century. Today, St Andrew Undershaft is administered from the nearby St Helen's Bishopsgate church. The first church on the site, which today is bordered by