PurposeFew public places are designed with due consideration to the needs and preferences of teens. Teens in public spaces are often viewed with apprehension from other user groups. Teens hanging out in public spaces are always observed with caution and are sometimes associated with negative behaviour by other community members. In designing public spaces that are suitable for the teens and not alienating them to other members of the community, it is necessary to understand how teens perceive their environment and what they expect from it. The psychological, social and emotional development determines the teens’ preferences regarding public spaces. This research attempts to understand how teens perceive and value those places and the factors that influence teens’ preferences in public spaces. This study aims to deduce some factors that influence teens’ preferences and behaviour from an environmental psychology perspective and then test these factors on a sample of teenagers in an Egyptian setting.Design/methodology/approachAn empirical study was conducted with teens in two districts in Cairo, Egypt: “Dokki” and “Sheikh Zayed,” to understand how teens perceive their neighbourhoods, identify preferred places and discern factors that influence their preferences. A sample of 67 teens, aged between 13 and 19 years old, in which 31 were males, and 36 were females, completed a survey that allowed teens to identify and rate their experiences. This occurred using a map-based mobile application to foster more active engagement by participants, in which they identified their favourite places, the behaviour associated with these places, what teens do there – when, and with whom, as well as their rating of the place.FindingsThe most important conclusion drawn from this study was that teens’ preferences are linked to their cognitive, emotional and social development. They influence and are associated with essential aspects such as the sense of freedom, sense of safety, self-identity, enjoyment, thrill-seeking and peer relationships. Therefore, it is important to adopt a new perspective to the design of public spaces to create teen-friendly places.Originality/valueAdopt a new perspective to public space design to create teen-friendly places by adopting an environmental psychology lens to shed light on the social and psychological dimensions of the built environment.