This tower in the City of London, opposite Liverpool Street Station, was built in 1976 and had been designed to office standards that have now been superseded. Set some distance from Old Broad Street and the Grade I listed St. Botolph's Church, Aldgate, the tower was sited on a bleak paved plaza, and the prevailing view was that it should be demolished. A review of available options indicated that the existing structure should be retained and adapted. It was shown that the foundations could support a further five floors, and that additional floors could be added within the restriction of the St Paul's viewing corridor.
An additional 40 per cent more net lettable space could be achieved within this new envelope, in a nineteen storey tower. Major cost savings resulted from the retention of the structural frame, with a shorter contract period on site and a major contribution to the sustainability of the redevelopment. The existing top two floors that housed mechanical plant were demolished, and five new office floors constructed in their place.