Follow I-85 S Toward Atlanta. Take Exit 249C – Williams Street. Merge Onto Williams Street Nw. Stay In The Right Lane. Turn Left Onto Ivan Allen Jr Blvd Nw. Turn Right Onto W Peachtree St Nw. The Building Will Be On Your Left Side Shortly After Turning. Arrive At 400 W Peachtree St Nw. Look For Twelve Centennial Park—A Glass High-Rise Tower With Retail At The Base. Valet And Visitor Parking Are Typically Accessible Off Ivan Allen Jr Blvd Or Via The Garage.