The 1.4-million-sq-ft Constitution Center in Washington, D.C., aims to become the largest office renovation project in the United States to achieve LEED-Gold certification.
James G. Davis Construction Corp. of Rockville, Md., began work on the project in July 2009 with demolition of the interior spaces and the exterior. The job included a 700,000-sq-ft, 1,500-car parking deck.