The Department of Homeland Security's new U.S. Citizenship and Immigration Services facility in Irving, Texas, was designed by 4240 Architecture and developed by JDL Castle Corporation. The focal point of the two-story, 56,000-sf building is the double-height, glass-walled Ceremony Room where new citizens take the oath. The facility also has interview rooms and offices for the Dallas USCIS office. Deep overhangs, sun shades, locally sourced materials, and energy-efficient systems make the building a candidate for LEED Silver certification.