NEW LISTING: 357 Decatur Street, Decatur, IL 62522 The Powers Mansion. Here is your chance to own a piece of history in Decatur Illinois. 7 bedrooms, 4 full bathrooms, 2 half bathrooms. 1300 square foot ballroom. Elevator. Enter the stately circle drive with gorgeous columns at the front entrance. Enter through the front door underneath the circular staircase to the second floor. To the right is the all wood main dining room, to the left is the den area and straight ahead is the 40 by 19 foot li