Minerva Building design changes and a further increase in height, to 53 floors and . Its location marks the Eastern gateway to the City and the building might have acted as a focus for the regeneration of the eastern City fringe. The site is outside the strategic views of St. Paul's, and does not contain listed buildings, although it does infringe upon a conservation area. It also lies within one of the three proposed viewing cones for the Tower of London, as do 30 St Mary Axe, Heron Tower and Tower 42. Although the official height was , the building was claimed
Baltic Exchange (building) pm, the façade of the Exchange's offices at 24–28 St Mary Axe was partially demolished, and the rest of the building was extensively damaged in a huge Provisional Irish Republican Army (IRA) bomb attack. The one-ton bomb killed three people whilst 91 were wounded. The bombing came a day after the General Election. Architectural conservationists wanted to reconstruct what remained from the bombing, as it was the last remaining exchange floor in the City of London. English Heritage, the government's statutory conservation adviser, and the City of London Corporation insisted that any redevelopment must restore the building's old façade onto