Behind the door of the room of the pentagram there is a ladder that when Henry comes near a wooden plank falls.
- The name is the meaning of the place, that titled "under construction".
- From the first teaser of Chapter 2 it's shown to of gone under many changes from removal of the "IT'S TIME TO BELIEVE" text and changes of the Bendy head.
- In the older version of Chapter 1, the location from "Bendy's" flashback in the pentagram room turns out to be the utility shaft. This is now remplaced by an unseen location.
- In Hello Bendy the Utility Shaft 9 sign is replaced with "HAPPY HALLOWEEN".