Exit towards Wien Zentrum. After about 2 km, when Schloss Schönbrunn is exactly to your right, turn left onto Schlossallee. At the end of Schlossallee, change into the rightmost lane passing under the railway bridge, then turn right onto Felberstrasse. Follow Felberstrasse for about 3 minutes; you will easily spot the sign for Boutique Hotel Stadthalle. Turn left onto Beingasse before you reach the hotel sign and follow the road until you reach Märzstrasse (second street). Turn right and drive one block to Hackengasse, where Boutique Hotel Stadthalle will be to your left.
In addition, we have put up plenty of signs between the highway and Boutique Hotel Stadthalle, so finding your way should be easy.
Exit Wien Zentrum – Triester Strasse and keep following Triester Strasse down Wienerberg hill until you get to the sign Gürtel West.
Important: make sure you choose the leftmost lane heading towards Linz, then drive under the bridge (at Matzleinsdorfer Platz) and stay on the Gürtel beltway past Westbahnhof station until you reach Urban-Loritz-Platz (the entire square in front of the city library is covered with tarpaulin). Turn left, watching out for cyclists and trams. Go straight ahead across the Gürtel beltway and onto Hütteldorfer Strasse.
Hackengasse is the third street on the left, where you will be welcomed at Boutique Hotel Stadthalle.