Thanks to FUU for the edit.

This is in fact the proposed LEADENHALL TOWER

The tower�s distinctive tapering form � designed to protect views of St Paul�s Cathedral from Fleet Street - will make a dynamic addition to the City of London�s skyline. The rectangular floor plates are unencumbered by internal columns and the building�s services are contained within a separate structural element to maximise net floor space. The base of the tower will form a six-storey enclosed public space with shops, cafes and restaurants. via New London Architecture.

The Leadenhall Tower will be 224.5 metres high, the tallest building in the City by a long way, and has (perhaps a tad unfairly) been likened to a cheesegrater in appearance. Architectural merits aside, the key concern over the building is the effect it might have on the setting of St. Paul's cathedral, the dominance of which is increasingly threatened by the emerging cluster of tall buildings in the City, and on the setting of Sir William Tite's magnificent Royal Exchange. via SAVE BRITAINS HERITAGE

and yes we will see what we can do on the 'HERON' tower.

This ain't the Heron Tower .. it's the Leadenhall tower.

try this link

although wicked model ... I'd love to see the Heron Tower also.