Columbia Pike was the most underdeveloped area in a county that is otherwise built out. Located in an urban county that has seen explosive growth in recent decades, Columbia Pike, (a 3.5-mile urban corridor immediately across the Potomac River from downtown Washington, DC) had seen little development in the past 30 years. County leaders initiated this revitalization effort to bring economic development to the corridor through the creation of a form-based code to foster transit- and pedestrian-oriented infill redevelopment. The project also included a public participation urban design charrette and master plan. The code is an optional (or parallel) code, with all of the underlying zoning remaining in place, but includes incentives such as expedited review and approvals, to encourage its use.