In Boyne's The Boy in the Striped Pajamas, what did Bruno's old house in Berlin look like?
Bruno loves his home in Berlin for many reasons. First, he is accustomed to it and to Berlin. All of his friends and, most importantly, his grandparents live nearby. In addition, he loves the house itself. It stands on “a quiet street and alongside it were a handful of other big houses.” It is multi-leveled; there are more than three floors. We know this because Bruno describes the house at Auschwitz as having "only three floors."
Thus, the Berlin house is quite spacious. Bruno loves its banister, which “stretched from the very top floor ... to the ground floor.” The top floor in the Berlin house is most likely the attic. It has a small room that contains a window where Bruno can see “across Berlin” if he stands on his tiptoes. The floor below contains his parents’s bedroom and a large bathroom. The floor below theirs is where his bedroom and Gretel's room are, and there is a bathroom on this level that is smaller than the one located on his parents’ floor.
There are “two enormous oak doors” at the bottom of the banister. Although the world “enormous” might be relative here as Bruno is a little boy, these are probably actually very large doors, implying that the house itself is large.
Finally, below the floor where the children’s’ bedrooms are is the ground floor where his father's office is located. Also there is the dining room, the kitchen, and a living room or family area. There are also probably some smaller rooms, because Bruno notes that in the Berlin house, there were “nooks and crannies that he hadn't fully finished exploring yet. There were even "whole rooms” that he was not allowed to enter. The hallway on the ground level is large enough to contain the family’s Christmas tree in December.