Use your navigation app to reach Noordvestsingel 77, Schiedam. For quick directions, see it on Google Maps.
If you drive, ask the host on arrival about the private parking spot directly in front of the door. It has a barrier that needs to be opened for you.
If that spot is taken during group sessions, you can look for free street parking nearby. Arrive a little early to secure a space.
Safe travels and enjoy your visit.