The T-Center is an office building in the Sankt Marx section of Landstraße, the 3rd district of Vienna. It was built between the years 2002 and 2004 following the designs of Austrian architect Günther Domenig. Due to the unconventional form and the use of unfinished concrete surfaces the T-Center rapidly gathered attention beyond the city boundaries, however the public discussed the building quite controversially.

Günther Domenig and the design team received the following awards for the T-Center:

Otto Wagner Städtebaupreis (2004)
Österreichischer Staatspreis for Architecture (2006)
The Chicago Athenaeum International Architecture Award for the best new global design (2006)

The T-Center has an effective area of 119,000 m² of office space for around 3,000 employees, with a gross area of 134,000 m². With a length of 255 meters, the building’s height reaches 60 meters.