One Arts Plaza is a 24-story skyscraper located at 1722 Routh Street in the Arts District of downtown Dallas, Texas. The mixed-use building stands at a structural height of 331 feet and contains 425,000 sq ft of class A office space, 30,000 sq ft of retail space, and 60 residences. It is easily recognizable by a large LED illuminated square on the east and west sides of the building, which can gradually change colors.