Duke Realty Corporation operates as a real estate investment trust (REIT) in the United States. It offers leasing, property and asset management, development, construction, build-to-suit, and other tenant-related services. As of December 31, 2006, Duke Realty owned approximately 721 industrial, office, and retail properties comprising 113.8 million rentable square feet, as well as owned 6,400 acres of unencumbered land for development. The company has elected to be taxed as REIT under the Intern ...