The scheme, for Bristol City Council, which has been running since 2003 and was hoped to start on site in 2005, recently secured £5 million of Arts Lottery funding to get the project back on track after the budget was slashed.
The new scheme has a completely altered roof, which is far less flamboyant than previous designs (below).
The planning consent will allow for the first phase of the project to take place, which includes the replacement of an adjoining building with a new foyer, providing 'much-needed internal and external public spaces'.
The foyer will be clad in copper alloy, and the design will 'incorporate a combination of musical and contextual references, [with the building] intended to become a new cultural landmark'.
The following phases will restore and refurbish the existing Colston Hall building, which is Bristol's principal music venue.
The dilapidated High Victorian Lesser Hall will be restored to become an additional performance space, with music workshops created below, and the 1951 main auditorium will be comprehensively refurbished and updated.