Before the Great War, the location was one of several skyscrapers in downtown Pittsburgh. Following the Scourge by the Brotherhood of Steel, Haven was chosen by Ashur as his headquarters after founding the Pitt. It is located in the uptown section of the city.
The exterior of Haven is walled off and consists of guarded catwalks. A large sculpture is situated in front of the main entrance, surrounded by periodic bursts of flames from each side. The remains of an individual is located within.
The entrance is the ground floor of the building, guarded by three Pitt raiders. The section has three levels with the higher ones being reachable via staircases to the east and the west of the building. A lift opposite the main entrance connects to Haven itself. The higher levels mostly contain beds for the guards and partial galleries overlooking the main hall on the ground floor.
Utilizing the elevator brings the player character to the part of the building where Ashur lives with his family. A corridor with a small room to the left leads to the central room which Ashur uses for meetings and audiences, secured by two ceiling-mounted automated turrets.
From there, corridors lead to Ashur's living quarters on one side and Sandra's laboratory on the other. Ashur's room contains a safe with several holotapes addressed to his daughter Marie that can be stolen, resulting in negative Karma. Turrets are controlled via terminal in this room. Sandra's laboratory contains various scientific equipment, Marie's cradle, and a terminal that holds information about her research.
- Ashur's diary - A set of four holotapes that can be stolen from the safe in Ashur's room on the top level.
- Ashur's power armor - Worn by Ashur, and can be acquired by killing him or reverse-pickpocketing.
If siding with Wernher during the Free Labor quest and stealing the cure, the building will become inaccessible for the remainder of the game once leaving the uptown area. If choosing to take Ashur's notes to his daughter, this must be done before leaving the building.