University of Washington Plaza is a skyscraper complex completed in 1975 in the University District of Seattle, Washington. The 99 m (325 ft), 22-story tower, designed by NBBJ, is Seattle's tallest building outside of the Downtown Seattle area. The tower was originally constructed as Safeco Plaza to serve as Safeco Insurance's headquarters, and was generally known as the Safeco Building. Safeco sold the property to the University of Washington in 2006 and moved out in 2007. All buildings north of the UW Tower in the United States are shorter than the UW Tower.