The decision by environment minister Dick Roche clears the way for Burdon Dunne Architects and Craig Henry Architects' 35-storey twisting U2 tower which will house the Irish rock band's recording studio on its top two floors.
It will contain two lifts, one for the band and one for residents of the luxury apartments.
In 2003 the project was overshadowed by allegations relating to developer Dublin Docklands Authority. Architects - including British offices - accused DDA of releasing names of practices interested in the anonymous competition before the deadline for submissions had passed. (AJ 28.8.03)
Roche's announcement also gives a green light to Scott Tallon Walker's plan for a 100m docklands tower, known as Point Village, which includes a shopping centre, 12-screen multiplex cinema, 220-bed hotel, 2,500-capacity theatre venue and 200 luxury apartments. (AJ 05.09.05)
Commenting on the tall-buildings amendment, DDA chief executive Paul Maloney said Dublin's docklands could emerge as a 'magnet' for inward investment.
'This is excellent news for the area as these amendments guarantee the development of significant cultural and leisure facilities which will drive the revitalization of the Docklands,' he said.
The approval of both the U2 Tower and the Point Village Tower - dubbed the Twin Towers - at opposite sides of the Docklands will form a citywide landmark and a dramatic architectural gateway into Dublin city, he added.
A spokesman for U2 said 'Bono and the boys' were 'pleased' the towers would create a new feature in Dublin's skyline.