The tower will form the centrepiece to the architect's 3ha Point Village in Dublin's Docklands.
Plans for Point Village also include a shopping centre, 12-screen multiplex cinema, 220-bed hotel, 2,500-capacity theatre venue and 200 luxury apartments.
The tower will contain 150 luxury apartments above five storeys of commercial space and would match the height of Craig Henry Architects' proposed U2 tower on Britain Quay, directly across the River Liffey. The two towers would create a 'maritime gateway to Dublin where the city meets the sea', according to the architect.
Changes to planning legislation, to allow taller towers to be built in the area, will be finalised by the end of September, with a planning application to be submitted before the end of the year.