The house is a two story building, with a living room, kitchen and bathroom on the ground level. In the kitchen, there is a fridge. In the restroom, a first aid box is mounted on the wall right beside the opening. Upstairs, there is only a bedroom with a queen sized bed.
Before the quest is completed, it contains three or four fire ant corpses and Fred Wilks' dead body. The house is in a bad state of rubble and flames, left from the fire ants. Fred may have fought them to the death, killing a few before being killed himself. When Those! is completed, Fred's son Bryan Wilks will clean up the rubble, bury his father, and remove the fire ant corpses.
When fast traveling to Grayditch, the Lone Wanderer arrives across the street from the house.
Wilks' house appears only in Fallout 3.