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
30 St Mary Axe and neighbouring structures. The United Kingdom government's statutory adviser on the historic environment, English Heritage, and the City of London's governing body, the City of London Corporation, were keen that any redevelopment must restore the Baltic Exchange's old façade onto St Mary Axe. The Exchange Hall was a celebrated fixture of the shipping market. English Heritage then discovered that the damage was far more severe than initially thought, and they stopped insisting on full restoration, albeit over the objections of architectural conservationists. The Baltic Exchange and the Chamber of Shipping sold the land to Trafalgar House in 1995. Most of