One of the most recent fields of investigation in Environmental Psychology focuses on the relationship between behaviour and management of environmental resources, aspects related to what is known today as “sustainable human development”. The attitude theories applied to the psychoenvironmental concern offer a frame of reference for the study of these subjects, but many of the phenomena detected require different, probably complementary approaches. The working hypothesis of the present study, carried out in the Olympic Village of Barcelona, assumes that, in many cases, proenvironmental behaviour is linked to the relation that people establish with particular environments, specifically, to the processes of socioenvironmental identity that modulate the person-environment relationship (Valera and Pol, 1994; Valera, 1997; Pol, Valera et al, 1998). First, the study analysed the urban social identity of residents, focusing on three main factors: 1) identification-satisfaction, 2) image of the neighbourhood and 3) perceived social homogeneity. Then, these three factors was analysed in relation to a series of items in the initial questionnaire referring to proenvironmental behaviour, representation of particular natural resources, and environmental attitudes. We assume that the answers to these questions will differ significantly according to the degree of identification of residents with their neighbourhood.