One Transam Plaza Office Condominium is a five story, 124,605 square foot building in prestigious Oakbrook Terrace, Illinois. Real Estate Taxes are estimated at $2.68/s.f. and Operating Expenses are estimated at $5.49/s.f. Located in Oakbrook Terrace, Illinois, approximately 18 miles west of Downtown Chicago. TransAm Plaza Drive is one block east of Meyers Road, off of Butterfield Road (Rt. 56). It is just west of Oak Brook Shopping Center and only minutes from I-88, I-355, I-294, Butterfield Road (Rt. 56), Roosevelt Road (Rt. 38). Close to Downtown Chicago, Chicago's Western Suburbs, O'Hare and Midway Airports.