Square One, Vienna:The office with that extra something

Shaping urban work.

Photo: Square One building façade with windows on the roof.

Highlights:Bold. Creative. Atypical.

Courage, creativity, modern design and individuality all come together in one project: Square Plus. The new real estate complex offers flexibility with regards to layout and use on all levels and is divided into two buildings: Square One and Square Two. The first and larger property is home to an international office district, the second contains modern micro-apartments for students, trainees and long-term travellers.

01Flexible office space
02Meeting rooms with an unobstructed view of the countryside
03Canteen with balanced lunch menus and terrace in the garden

Location:Perfectly connected

At one of the most exclusive locations in Vienna, a new attitude towards life has emerged in the 19th district. The business district of Döbling at the foot of the Kahlenberg is located directly at the transport hub of Heiligenstadt. It therefore has great links to the train and underground network, which means you can get to the centre of Vienna, the nearby areas of Klosterneuburg and Krems, as well as Vienna Airport in next to no time.

01Excellent links to the public transport network



Leopold-Ungar-Platz 2, 1190 Vienna

Google Maps
30 Min. mit PKW
30 min by car
in front of the building
City train
200 metres
Local supply
in the building
Railway station
200 metres
200 metres
200 metres

Facts and figures

  • 313apartments
  • smartfurniture
  • 1launderette


  • Logo: DGNB PlatinDGNB Platin certified


  • Planning
  • Project development
  • Project management
  • Marketing

About Square One

The modern and multi-functional office complex is a pioneer among sustainable office properties. This creates added value for people and nature, which has been recognised with a platinum certification from the Austrian Society for Sustainable Real Estate Management. The building was designed by the renowned HNP architects. The result: More space, flexible and adjustable office spaces and practical considerations taking into account the needs of future users. This kind of considered approach has resulted in the area becoming a modern hub for media, communications and life sciences.

Construction time
2015 - 2017
Areal concept
27,200 m² over 6 floors with a room height of 2.80 metres; rental spaces of 216–5060 m²
Used by
Zurich Versicherung, Raiffeisen Holding, klima+energie fonds, amvs, CWI, Klima SEC Consulting, Spaces, Medani, Agilent, OrphaCare, 7reasons Medien GmbH, conet, MERKUR Gaming, CP GABA, AOP Orphan, venuss, Billa, etc.
354 underground parking spaces and bicycle parking areas with showers
Special features
  • In-house fitness area

  • Canteen with terrace in the garden

  • Supermarket, bank, travel agency and catering in the building

  • Energy-efficient construction

  • Photovoltaics on the roof

  • ÖGNI/DGNB platinum certification

  • Exterior sun protection

  • Opening windows

  • Metal ceiling cooling system

  • Mechanical ventilation

Take the first step into your new office!

We look forward to hearing from you

Enquire now

More projects

Photo: Full view of the building. White residential tower with greenery.


Vienna · Under construction


  • Living