The increasing number and complexity of urban risk and disasters have a significant bearing on the emotional and mental wellbeing of those who are exposed and hamper their responses. Nevertheless, current discourses and approaches to increase resilience tend to focus on broader socio-economic, physical and environmental systems. This reflects a failure by the academic and practitioner communities to consider the potential contribution of human interior dimensions in adaptation planning. Concomitantly, a growing body of knowledge highlights the need to bridge the gap between internal and external (systems) approaches for achieving sustainable transformations. Against this background, this article aims to increase knowledge on the operationalization of such more integrative approaches in marginal settings. Based on a case study of a flood adaptation project in Kibera, Kenya, we assess the need and potential ways to address interior dimensions in the context of project planning, design and implementation. We show how the integration of such dimensions occurs in existing adaptation projects and why this matters. On this basis, we provide methodological and operational recommendations regarding ways to support more integrative approaches that bridge subjective, intersubjective, objective and interobjective perspectives to support transformation.