Richard Rogers Partnership's Leadenhall Building is expected to be given the go-ahead by the Corporation of London next Tuesday.
The Corporation's planning and transportation committee has already been asked to approve the application for the 58-storey, glass-clad tower in the heart of the City.
Dubbed the 'doorstop' by some, the 224.5m-high building would offer 53,600m 2 of office space together with bars, restaurants and a theatre.
The tower has received the backing of both English Heritage and CABE, which, in a letter to the Corporation in June, described the proposals as 'intelligently designed with the potential to be an extraordinary addition'.
However, as expected, groups such as the City Heritage Society have yet to be convinced by the scheme and have hit out at both Rogers and the planners.
Writing to the Corporation in April, the society said: 'The architect has the impertinence to say that his tapered tower would 'complement' the dome of St Paul's, 'giving clarity and drama' to the skyline as seen from points in Fleet Street. What nonsense!'