The Liberty Corner building in Warsaw, developed by the Von der Heyden Group, has won first prize in the Office Building Category at the ''Budowa roku 2003'' (Building of the Year 2003) competition, which was argenized by The Polish Association of Civil Engineers and Construction Technicians, The Infrastructure Ministry and The General Office of Bullding Control. The awards ceremony was held on June 25 at The Marriott Hotel in Warsaw.