From Kerpen motorway intersection:

• Motorway A61 towards Euskirchen/¬Koblenz, leaving it at the Türnich junction
• B264 towards Frechen
• Right at the 2nd traffic lights into industrial estate I (Industriegebiet I)
  First right (Alfred-Nobel-Str.)
  First left (Otto-Hahn-Str. 10-20)

From Köln West motorway intersection:

• Motorway A1 towards Koblenz as far as the Gleuel junction
• Right towards Frechen/Türnich
• Left at the traffic lights onto the B264 towards Kerpen
  Left at the 1st traffic lights into industrial estate I (Industriegebiet I)
  First right (Alfred-Nobel-Str.)
  First left (Otto-Hahn-Str. 10-20)