The heart of the Althan Quartier is the FRANCIS building complex, which houses the Franz-Josefs-Bahnhof railway station on its ground floor. Two new buildings are being built just to the east of FRANCIS on Nordbergstrasse: JOSEPH and SOPHIE – modern, urban living space in one of Vienna's prime locations. The fourth Althan Quartier building is on Althanstrasse and will house a hotel and parking garage.
Three of the four separate Althan Quartier buildings will be connected via a plaza – a shared space and a place where people can relax. The plaza will lead to offices, the JOSEPH residential building, and the neighbouring hotel, while a passage will connect to the garage. The plaza will also be accessible from outside, with walkways leading to Althanstrasse and Nordbergstrasse.