I visited this sight around Christmas of 2021 when I was visiting Holland by myself and was driving from The Hague to Breda.  As many times before (either by train or by car) I drove by this factory which is in Northern Rotterdam, not that far from Delft where I studied.  As I had some extra time and had never visited before and was driving right by the site I decided to have quick stop.  So I did, I walked around the building which is now an office for start up companies and took pictures from all angles.  There are tours but as the country was in COVID lockdown, I was not able to go inside.  I tried to find a UNESCO sign but was not successful.

This factory is known for its architecture and must have a quite heavy lobby group as I am not that convinced this is UNESCO heritage worthy.  The factory is easy to drive to and probably accessible by public transportation as well as anything in the Netherlands.