The intention of physical features is to create a sense of territorialism in community members which will ensure a safe living environment for those that care for it. Defensible space works with a hierarchy of living and community spaces. According to the theory, housing developments that evoke territorialism are "the strongest deterrents to criminal and vandal activity." Housing should be grouped in such a way that members feel a mutual benefit. Also to deter crime, areas should be defined for function, paths should be defined for movement, outdoor areas should be juxtaposed with homes, and indoor spaces should visually provide for close watch of outside areas.
