Objective.To develop a reflection on how to incorporate the spatial dimension in the analysis that all design of social interventions requires. Methodology. Based on the connection between the work of Henri Lefebvre and the field of Social Work, and the teaching experience in a Chilean school of social work, an own theorical-methodological proposal is elaborated. Results.A general form of analysis is proposed that considers the spatial as consubstantial to the social, from a trialectics perspective. This proposal integrates material, subjective and social dimensions, on macro, meso and micro scales. Conclusions. It is considered that this proposal allows overcoming naive or conservative views, and perspectives that conceive the territorial area as a mere level of intervention. Additionally, a set of challenges that arise from this proposal are indicated.