For 150 years the business has been based in the city centre but now occupies the whole of Fort Dunlop's sixth floor.
The floor is the only new one in the development and was built on top of the original tyre factory during its refurbishment.
With its Urban Splash revamp, Fort Dunlop has been reinvented as a contemporary office, retail and leisure space.
Measuring 53,000 sq ft, the layout is open-plan and maximises views of Birmingham and the M6.
It was originally designed by Sidney Stott and W.W. Gibbings in the 1920s and is now a Grade A locally listed building
The building now has the largest living grass roof in the United Kingdom which provides natural insulation and a wildlife reserve Also, a circular light well was constructed from the roof to the atrium at the reception, allowing natural light to illuminate the centre of the building. At each floor, the light well is lined with steel to reflect the industrial heritage of the building.