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Press release

PORR secures major project in Viennese residential construction

Vienna, 09.07.2020 – The urban development area “Neu Marx” in Vienna’s third district continues to grow. Following the successful excavation of the pit for the Q-Tower on the project THE MARKS, the building construction contract for erecting this modern residential tower block has also been awarded to PORR. The planned 114m-tall building will offer diverse forms of urban living across a total of 35 storeys. A construction period of 30 months has been agreed. The contract is worth around EUR 75m.

Rendering of Q-Tower, part of THE MARKS

Rendering of Q-Tower, part of THE MARKS

© A3ZO für RLP Rüdiger Lainer + Partner

“On the basis of our value engineering and detailed optimization, we have won the tender for the largest individual residential project to be awarded in Vienna in the past 15 years. We are honoured to be entrusted with this valuable contribution to sustainably shaping this new urban quarter”, said Karl-Heinz Strauss, CEO of PORR.

The project THE MARKS involves the construction of three residential towers with around 1,200 apartments in Vienna’s Landstraße district until the beginning of 2023. Alongside classic apartments, the towers will house student halls, flat-shares and serviced apartments for short-term stays. The heights of the three towers range between 105 and 126 metres.

The Q-Tower, designed by architects Rüdiger Lainer + Partner, comprises around 490 residential units. Specifically, 169 rental apartments under the 2015 Vienna home-building initiative, 228 privately financed freehold flats and 92 serviced apartments.

A desirable address

As part of the project development, the existing infrastructure in the “Neu Marx” quarter will be expanded with ample commercial and office space along with a kindergarten and a supermarket. The quarter benefits from an ideal location: close to the city and the new Vienna Central Station, with direct links to the A 23 motorway and proximity to Vienna International Airport, which is around 15km away.

The location also impresses with its attractive mix of heritage-protected buildings standing side by side with modern architecture. Marx Halle (a former cattle market) is at the centre of the quarter, serving as a venue for culture, leisure, media production and the creative industries.

Facts and figures at a glance

Type of project:

Residential construction

Scope of services:

General contractor, building construction


Österreichisches Siedlungswerk Gemeinnützige Wohnungsaktiengesellschaft (ÖSW)



Project duration:

30 months

Contract volume:

approx. EUR 75m


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Milena IovevaCompany Spokesperson