Crime Prevention Through Environmental Design (CPTED) is a crime prevention philosophy based on the theory that proper design and effective use of the built environment can lead to a reduction in the fear and incidence of crime, as well as an improvement in the quality of life.

The CPTED concepts of Natural Surveillance, Territorial Reinforcement, Natural Access Control, Maintenance and Social Management are interwoven and if applied correctly reduce crime, create secure environments and promote community well-being.

The placement of physical features, activities, and people in a way that maximizes visibility.

The use of physical attributes that express ownership such as fencing, pavement treatments, signage and landscaping. 

Means controlling access to a site. People are physically guided through a space by the strategic design of streets, sidewalks, building entrances, and landscaping.

Allows for the continued use of a space for its intended purpose. It serves as an additional expression of ownership and prevents reduction of visibility from landscaping overgrowth and obstructed or inoperative lighting.

Is the strategic engagement and organization of community resources and behaviors to enhance safety and reduce crime. Examples include free libraries, food truck courts and athletic leagues.