Leave the A5 motorway at the Freiburg Nord exit, then follow the signs for Waldkirch. Continue along the B294 main road. At the Waldkirch West junction turn off into Freiburger Straße, keeping in the right-hand lane. At the first traffic lights, turn right into Stahlhofstraße. After about 300 yards, turn left into Rudolf-Blessing-Straße. HUGRO is about 200 yards down the road on the right-hand side.