Separating uses , as in downtown and strip shopping districts, creates the need for duplicate infrastructure and costs. This can create inefficient duplication of schools, fire department, recreation, and other services and facilities. Infrastructure costs tend to increase with the size of lots, because development is spread out. This adds to the complexity of evaluating the costs of different development patterns. Homeowners are increasingly paying the costs of infrastructure and other capital expenses, as developers pass them along.
Nobody builds on the edge of downtown because they hate downtown.