Dallas Building Safety: Anti-Mansionization Rules (2026)

Dallas does not adopt a citywide FAR cap on single-family lots; instead, neighborhood-specific protection happens through Conservation Districts (CDs), Neighborhood Stabilization Overlays (NSOs), and Planned Development Districts. CDs in areas like Munger Place, Belmont, and Kessler Park dictate allowable square footage, building envelope, height plane, and tree-canopy preservation. NSOs adopted under Section 51A-4.505 set front-yard setbacks averaged from neighbors, height plane angles measured from side-yard lines, and lot-coverage maxima typically forty-five percent. Standard R-7.5 and R-10 zones rely on lot-coverage and side-yard rules without FAR. Tear-down and replacement projects in protected districts require Plan Commission or staff design review demonstrating compatibility before permits issue.