Construction work has commenced on the £16 million renovation of the former Cadbury HQ in Bournville.
Franklin House, which is believed to be the place where the Curly Wurly was created, is to be transformed into an apartment complex containing 79 one- and two-bedroom units.
Birmingham-based property developer Court Collaboration has appointed Aldridge construction firm Shaylor Group to carry out the redevelopment in Bournville Lane of the 1960s commercial building to create 'The Franklin'.
New CGIs have also been released showing how the building will look once finished.
The project, which is expected to be completed by next spring, has been designed by Jewellery Quarter-based BPN Architects which has strived to incorporate many of the building's original features including the 1950s 'Festival of Britain' balustrade which spans the central staircase.
Anthony McCourt, director at Court Collaboration, said: "The Franklin provides the first true opportunity to experience city living in the suburbs. The apartments will be modern and sophisticated, while incorporating the building's incredible high ceilings and large windows."
The building, which has been vacant for several years, was purchased in 2014 by Court Collaboration in a joint-venture with Headland Developments, a Hong Kong-based firm backed by Chinese investors.
Shaylor Group has also been appointed as lead contractor on Royal Sutton Place, Court Collaboration's £10 million project at Sutton Coldfield's former town hall to convert it into an 18-unit apartment complex.
