The 43-storey tower will sit right on top of Old Street roundabout and will act as a new 'gateway to the City' (Alsop on verge of revealing major City skyscraper).
The 42m-tall tower is the second in a week to be revealed by Alsop, who has won planning for a tower in Salford (Alsop wins green light for new Salford tower).
If built, Alsop's London skyscraper at 151 City Road will join a host of new high-rises popping up on the fringe of the City.
Farrell and Partners is currently working on a design a stone's throw from Alsop's proposed development called Eagle House, and another scheme, Monmouth House is being designed by Squire and Partners.
Alsop's London tower is currently on public display, allowing local residents to comment on the designs before it is put forward for planning.