Austro Tower

In terms of sustainability, the Austro Tower plays all the pieces in the direction of renewable energies: heating and cooling is provided by water from the Danube Canal, and component activation ensures an all-round feel-good climate on all 38 floors.

Building owner

Austro Control
Soravia Group



Specialist planning

General contractor: Swietelsky
Structural engineering: Gmeiner Haferl, KS Ingenieure
Building physics: Vasko + Partner, ATP Wien
Building services planning: Vasko + Partner
Energy concept: SEM Energie- und Gebäudemanagement GmbH
Building component activation: Upunor


Bruttogrundfläche: ca. 60.000 m²
Stockwerke: 38 oberirdisch, 4 unterirdisch
Kfz-Stellplätze: 225
Höhe: 140m

Das Hochhaus besteht aus einer einzigen Glashülle, die in Geschosshohe Fenster untreteilt ist. Das Glas schimmert dunkelblau durch die Sonne. Der Turm hat einen dreieckigen Grundriss und sie Ecken des Gebäudes sind mit unterschiedlichen radien abgerundet.

Visible from afar, Vienna's new tower - the Austro Tower is the tallest building on the Danube Canal in Vienna's third district and the fifth tallest high-rise in Austria. It offers a total of around 28,000 square meters of office space on 38 floors, plus a conference center, a company restaurant and café. The Austro Tower is the new headquarters of Soravia, Austro Control and Asfinag. The new building offers an impressive view: from the top, the new district on the Danube Canal between the TownTown business district and the Triiiple can be overlooked. In addition to the striking architecture, the building technology concept is also remarkable and has long been certified according to Leed and by the ÖGNI with platinum.

The Austro Tower is heated and cooled with water from the Danube Canal. In this way, the potential of the site is fully exploited. The water is fed into an energy center in one of the TrIIIple towers, where it is heated or cooled by high-temperature heat pumps depending on the season. The energy reaches the individual high-rise buildings via a district heating or district cooling network. Five deep wells serve as backup for the "river energy"; in an emergency, an electric boiler can also step in. The 30-centimeter-thick concrete ceilings of the individual floors are thermally activated. This form of heating and cooling is particularly energy-efficient and optimally suited to regenerative energy sources.

KGT Gebäudetechnik was commissioned by the general contractor Swietelsky to install the heating, cooling, ventilation, sanitary and sprinkler systems. Around 22,000 square meters of pipes were laid in the process. The individual modules were prefabricated on site: They each consist of a support mat and flexible pipes that convey the heating or cooling water. The system not only uses the surfaces of the ceilings for heat transfer, but also the storage capacity of the concrete.

(Text: Gisela Gary; Z+B magazine; in shortened form)

Der Austrotower aus der Ferne. Daneben andere Hochhäuser.
Aufenthaltsraum mit Tischen und Stühlen vor raumhohen Fenstern mit Blick über die Stadt.
Kurt Kuball
Pausenraum abgetrennt durch Glaswand. Alles in weiß und hellen grau Tönen. Im Hintergrund Ausblick durch die großen Fenster.
Kurt Kuball
Besprechungsraum im spitz zulaufenden Gebäudeteil. Große, kreisförmige Lampen an der Decke. Ausblick auf die umliegenden Gebäude in allen Richtungen.
Kurt Kuball
Der Tum in voller Größe zu sehen, die Sonne scheint knapp an der Gebäudeecke vorbei und blendet in die Kamera.