One Transam Plaza Office Condominium is a five story, 124,605 square foot building in prestigious Oakbrook Terrace, Illinois. approx. 18 miles west of Downtown Chicago. Trans Am Plaza Drive is located one block east of Meyers Road off Route 56/Butterfield Road. It is just west of Oak Brook Shopping Center and minutes from I-88, I-355, I-294, 22nd Street, and Roosevelt Road (Rt. 38). Close to Downtown Chicago, Chicago's Western Suburbs, O'Hare and Midway Airports.