A 7 from Frankfurt/Hannover:
At the south cross Kassel, exit "Kassel city centre", you take the route A 49. From there you take the exit "Kassel Auestadion/Stadtmitte" (city centre) and drive about 3 km straightforward. At the third large traffic light crossing (there it goes somewhat uphill), turn left about 200 meters into the street "Wilhelmshöher Allee" and bend back up to the hotel at the next traffic light.
A 44 from Dortmund:
You take the exit "Kassel Wilhelmshöhe" and bend off left towards city centre. On the "Konrad-Adenauer-Strasse" you drive about 3 km always straightforward. The "Konrad-Adenauer-Strasse" automatically changes into the "Druseltalstrasse" and "Kohlenstrasse". You drive past at two high-speed lunch chains, up to a traffic light crossing (here you can find an ARAL filling station on the left). At this crossing you turn left into the "Wittrockstrasse". At the next large traffic light crossing you bend right into the "Wilhelmshöher Allee" and after 200 meters you'll find us on the right side.
From the Inter City Express station Kassel Wilhelmshöhe
With the cable car lines 1, 2 or 3 you follow the direction city inwards. You go three stops until station "Kirchweg", then still approximately 200 meters city inwards on foot up to the hotel. You will find the online timetable of the Kasseler public transport company (KVG) here. Taxis are directly in front of the station. The costs up to the hotel amount to approximately € 6,00. If you go by foot, it will take you 2 kilometres respectively 20 minutes on foot city inwards.
You will find the travel information of the German Railways, Inc. here: http://reiseauskunft.bahn.de. Of course we are gladly helpful to pick out your connection.