This chapter discusses research and theorizing about the crime impacts of the physical environment, relating it to past reviews of scholarship in this area, and highlighting the crucial question of causality. It introduces key stumbling blocks in community criminology that must be addressed before scholarship can advance on the crucial causality question. Environmental criminology in a deep sense represents a field within a broader field of community criminology. The chapter underscores just a few of the most important recent works in four select areas within the physical environment-crime scholarship: space syntax, facilities and land use, accessibility/permeability, and crime prevention through environmental design/defensible space. The final section sketches one possible avenue for future research which can address these concerns.