One Arts Plaza, Skyscraper in Dallas Arts District, United States.

One Arts Plaza is a 24-story skyscraper at 1722 Routh Street in the Dallas Arts District, standing 331 feet (101 m) tall. It holds 425,000 sq ft of class A office space, 30,000 sq ft of retail space and 60 residences. Large LED-illuminated squares on its east and west sides change color gradually.

The building was developed starting in 2005 by the Billingsley Company and opened to tenants in 2007. Its creation was part of a broader effort to establish the arts district as a mixed-use neighborhood.

One Arts Plaza is home to Tei An, a Japanese soba restaurant, and The Playwright Irish Pub, both open to visitors in the building. Its ground-floor retail space and restaurants make it a stop for meals before or after events in the surrounding Arts District. The Dallas Business Improvement District's TACA also has offices here.

One Arts Plaza occupies the block at 1722 Routh Street in downtown Dallas, within walking distance of the AT&T Performing Arts Center venues and the Dallas Museum of Art. The ground floor holds retail and restaurant tenants such as Tei An, Yolk and The Playwright Irish Pub, so the lobby and street level are the easiest parts to visit. Upper floors are offices and 60 private residences and are not open to the public.

The east and west sides of the building display large LED squares that change colors throughout the day. This lighting system was created by designer Scott Oldner and makes the structure a notable sight especially after dark.