Coming from the A5/A67 (interchange Darmstadt):

• Exit at Darmstadt Mitte and follow the signs "Stadtzentrum/City-Ring/TU".
• Continue on this street (Rheinstraße) to the tunnel (about 1.3 miles/2km after the highway exit).
• Stay left and use the left lane coming out of the tunnel.
• At the next traffic light, turn left (into Kirchstraße).
• At the next traffic light, turn right (into Landgraf-Georg-Straße).
• Stay left and after approx. 109 yards/100m turn left into the first street (into Fraunhoferstraße).
• After approx. 55yards/50m turn right into the first street (into Rundeturmstraße).
• a-tune is about 33yards/30m down on the left at Rundeturmstrasse 12, on the fourth storey.
• You may park either in front of the door (parking space "a-tune") or in the car park whose entrance is adjacent to Building No. 14 Rundeturmstrasse.