Vienna TwentyTwo

A new multi-functional zone is being developed on what used to be a car park on Dr Adolf Schärf Platz in Vienna’s 22nd district. The multi-use complex, which is being developed by a consortium comprising property developer SIGNA and Austrian Real Estate, will consist of six high rise buildings with 600 residential flats, 420 hotel rooms and apartments, and 18,000m² of office space. The first construction phase involves building a three-level underground car park. PORR was contracted to develop the

construction pit ready for use and complete all the deep foundation work. PORR’s tasks included extensive diaphragm wall construction, jet grouting and installing bored piles at depths of up to 40m, along with excavating and disposing of approximately 100,000m³ of soil. All the work was carried out under the lead of the Specialist civil engineering department by various PORR departments and subsidiaries.