Examining patterns in suburban density and mix in a mid-sized Canadian city illustrates the challenges of trying to achieve planning targets for urban intensification and mixed use in midsized cities with relatively slow rates of growth. A mixed methods study documents trends in Halifax over a 50-year period. Although planning theory and policy often promote growth nodes and corridors, the case study illustrates the ways in which market forces, conflicting regulations, demographic shifts, and local conditions may undermine efforts to increase densities and generate fine-grained mixing of uses and housing types in suburban areas.