In the location in itself, there is nothing interesting, just a small building with a Halloween-themed room open for visitors. There is a chance that Dogmeat finds there the captain's hat, when you tell him o search for items in this location.
Your attention can be more attracted by the nearby building to the West - 35 Court. Inside, there are several quite strong robots, but at the highest accessible level, there is some notable loot.
It is a full set of power armor, whose type depends on the character level, at which you were when you got to the building. To open the door that with the armor behind it, you need to press two buttons on the opposite walls, left and right of the armor.