ÖBB Headquarters by Zechner & Zechner

OBB Headquarters

OBB HeadquartersThe new headquarter building for the Austrian railways (ÖBB) has been completed. Designed by Zechner & Zechner, their proposal was selected as the winner of an EU-wide competition in 2009.
OBB HeadquartersThe building, which is located in the south plaza of Vienna Central Station, will now allow several ÖBB companies to work at the same location as part of bringing together company sites with offices for 1600 employees.
OBB HeadquartersThe building consists of a five-story base section with a high-rise structure above that is divided into two different heights (88m and 67 meters), and acts as a landmark for the new district south of the new Central Train Station.
OBB HeadquartersThe base includes spaces for public use, as well as for retail, services, food and drink, police and social services. A staff restaurant and conference center will also be located there.
OBB HeadquartersThe building has a flowing s-shaped floor plan in response to the station shopping mall. The width chosen and the configuration of the core allows maximum flexibility for all the various office organisation options (groupings, cells, combination offices, business club).
OBB HeadquartersZechner & Zechner designed a sustainable “slim building” with low primary energy consumption and limited use of domestic engineering, while at the same time having a healthy and comfortable climate.
OBB HeadquartersRegulatable external sun blinds, natural ventilation, heat dissipation via automatic ventilation, the redirection of light to optimise natural illumination and reduce energy consumption for lighting and natural humidification with islands of plants are used to achieve this.
OBB HeadquartersThe building is equipped with a double skin façade and supplied by district heating and cooling. Thanks to the activation of thermal mass and consistent use of waste heat a very low total energy consumption can be guaranteed.
OBB HeadquartersA ‘gold’ certificate from ÖGNI is a guarantee of the achievement of sustainability criteria.
OBB HeadquartersLocation: Am Hauptbahnhof 2, Vienna, Austria
Architects: Zechner & Zechner
Project managers: Christoph Zechner, Stefan Wecker
Structural engineer: Thomas Lorenz ZTGmbH, Graz
HVAC and electric engineering: Moser & Partners, Absam
Gross-Floor-Area: 57.800 sqm;
Usable Area: 37.600 sqm;
Costs: 74 million euros
Year: 2014
Client: BAI – Habau – Östu-Stettin
Photographs: Helmut Pierer
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