The building appears to have been in a recent fire, because its cement face is charred by smoke, and its windows are blackened from fire. The apartment is never referred to in the game's storyline, and consequently the cause behind the fire that occurred here remains a mystery.
The Hell House may be based on a real-life apartment fire in Montgomery, Alabama in 1992, hence the name of the town. Also, the game is set in 1992, the same year the fire took place.
Players have reported being set on fire near the apartment, but that was shown to be false. Players have also said to have seen the face of Satan on the wall, claiming the fire was the work of the devil. There is a small lot behind the building that is bathed in a strange blue light at night time. This could be a reference to the Epsilon Cult's use of the color blue.