Glass constitutes a useful architectural tool because it offers valuable space features, such as more light and unobstructed view. However, the application of transparency, especially in the case of housing, raises various concerns. Although glass can provide many architectural advantages, one may wonder if the resident of a glass house can feel comfortable and safe in that space. The subject of this lecture is to explore the psychological changes that provokes the life in a glass house. In addition, it is studied the impact that such an architectural option has and the consequences that can bring in public space and society. Moreover, it is analyzed whether public space can still function normally and if society can accept the invasion of private life in public space, when the boundary between public and private space is the glass surface. Furthermore, we investigate the relationships created between the person that is being watched and the observer that is watching him.