Unisys Corp. leased 275,000 square feet at Plaza America Tower III, 11720 Plaza America Drive in Reston, VA. Plaza America is a 13-story, Class-A office building located in the heart of Reston. The company also plans to lease an additional 145,000 square feet of office space in the county. Unisys expects to complete the expansion in 2005. The consolidation and expansion will result in 900 jobs over three years.