Trump unveils $200 million plan to convert D.C. landmark into hotel Mon Aug 5, 2013 11:37pm EDT (Reuters) - The Trump Organization said it is planning a $200 million redevelopment of the iconic Old Post Office Building in Washington, D.C., into a luxury hotel. Donald Trump's company said it finalized a deal with the U.S. General Services Administration to redevelop the national landmark on Pennsylvania Avenue now that a Congressional review has been completed. The company said it would start construction on the new Trump International Hotel next spring and expects the hotel to open by the end of 2015. Reporting by Vijay Vishwas in Bangalore; Editing by Chris Gallagher