The house acquired another ladder, which is in place of the accumulation of objects from Act 1. The house, unlike Act 1, is made not only of blue boards and white wood but also of yellow, red and burgundy boards.

A very high fence appeared with barbed wire at the top so that Nicky Roth (the protagonist) cannot climb over it to get to his home. Pipes are located throughout the house, which is not very natural. Peterson's House in Act 2 became two floors larger and received more rooms. This didn't work, however, and players still made it over. Peterson's House so that players could not glitch themselves over to the children room. In a later patch of the game, a satellite dish was added to the left side of Mr. Near the bedroom is a small accumulation of objects, consisting of a chest of drawers, a bedside table, and huge shelving. The house has a backyard ladder leading to the roof.

The house also has a false wall that can be opened by using a yellow switch.

The roof has a large hole leading into the children room. The house has a lift on the left side and a unique red window, which differs from other windows only in color. Peterson's House in Act 1 is made of blue wooden boards, white wooden trimming, and brown roof tiles. Peterson's House in Act 1 is the smallest in the full game.

Hello neighbor 3rd floor