Donau City over the covered motorway. On October 2, 2012 S+B Gruppe and Sorovia Group announced in a joint press release the construction of another high-rise called "Danube Flats". It will contain 500 flats distributed over 45 floors and 145 meters located next to the "Hochhaus Neue Donau". Overall the two developing companies will invest a total of € 140 millions on this project. Construction is scheduled to start in 2014 and end in 2016. The construction of Donau City occurred in the following steps: Donau City Donau City, or Vienna DC, is a new part of Vienna's 22nd District Donaustadt, next
Donau City a few years, an urban centre with residential and office buildings, research facilities, recreational facilities and event locations, the Donau City. The Donau City development concept is a broad mix of uses: office and commercial uses, up to 70 percent, residential use of about 20 percent, and cultural and recreational use of approximately 10 percent. Approximately 7,500 people currently live and work in this new "city within a city". With the overall expansion, which is expected to be completed in 2012, the population could increase to 15,000. International companies such as IBM, sanofi-aventis and Bauholding Strabag SE are also located