6 December 2011
Zurich's Prime Tower, standing 126 metres high, is officially opened, with full occupancy. The opening of Switzerland's tallest building marks an important highlight for the successful development of both Swiss Prime Site and Zurich-West. The official grand opening concludes 15 years of development on the Maag site and symbolises the successful transformation of an industrial quarter into a vibrant urban quarter. Swiss Prime Site invested CHF 380 million in the Prime Tower, the Platform commercial building and the annex buildings Cubus and Diagonal.