"Gustafson Guthrie Nichol (GGN) has broken ground on the CityCenterDC development by Hines|Archstone in downtown Washington, DC. A new mixed-use development located on the 10-acre site of the former convention center, CityCenterDC is one of the largest downtown development projects currently underway in any U.S. city. Gustafson Guthrie Nichol participated in developing the master plan for the site with lead architect Foster + Partners, and acted as lead landscape architect, working with DC-based Lee and Associates. Additional members of the design team include DC-based Shalom Baranes Associates, serving as associate master plan architect, project Architect of Record, and lead designer of the residential rental buildings.Construction commenced on March 23, 2011, and is expected to reach completion by the fourth quarter of 2013. The project includes the development of Northwest Park, a lively addition to downtown DC, the creation of a Central Plaza, aswell as dramatic terraces with green roofs and gardens incorporated into all the buildings."