Guided by an integrated theoretical approach combining communication infrastructure theory with methods of assets-oriented community field mapping, this study reports the findings of an engaged scholarship project we term communication asset mapping (CAM). Ecological in orientation and participatory in practice, CAM represents a tool for analyzing urban spaces’ potential as mediums for building healthy communities. This article offers two case studies from different low-income neighborhoods in Los Angeles, the first a researcher-directed CAM application and the second undertaken in collaboration with community health promotion workers. Both offer insights for researchers and practitioners interested in the intersecting roles of communication and place in creating positive community change.