Navigant Consulting, Inc. signed a lease for 81,200 square feet at 30 S. Wacker Drive in Chicago. It is scheduled to occupy 27,000 square feet in June 2005 and the remaining 54,000 square feet in June 2007. The new space will accommodate Navigant's continued growth following its acquisition of Tucker Alan Inc. earlier this year. The company will relocate from 150 South Wacker and 175 West Jackson Drive.