Constitution Center

Washington, D.C.
Owner: David Nassif Associates
Architect: SmithGroup, Inc.
Engineer: SmithGroup, Inc.
Contract Value: $48 Million

The Constitution Center entails the massive modernization / renovation of the Nassif Building located at 7th and D streets in southwest Washington DC.  The ten-story, 1.5 Million sq ft. building is divided into four quadrants with a central, 90,000 sq. ft., open-air, landscaped courtyard, and additionally includes a 15 acre, three-level underground parking garage.  The renovation commences with the demolition of the existing building to its base structure, and will then proceed with construction of a modern, 21st century building that will be the largest privately owned office building in Washington DC.  The current HVAC systems will be replaced with an energy efficient chilled beam system, typically utilized in Europe, making it one of the first and largest systems of its kind to be installed in the United States.  The mechanical and electrical penthouse will be replaced, (4) new boilers, chillers and cooling towers each will be added, (16) air handling units with heat recovery systems will be installed, and 21 existing elevators will be modernized with 10 new elevators added.  Plumbing upgrades include modernized fixtures, sanitary and storm risers and complete domestic water and natural gas systems.  The marble facade will be removed and replaced with a new glass exterior consisting of a 300,000 sq. ft. blast-resistant curtain wall system.  Other security upgrades to the structure and parking levels will be included to meet current level IV standards.  In addition, the tenant lobbies and cores will be developed in anticipation that the building will be leased to a GSA tenant(s).  Additionally, extensive remodeling of the courtyard and surrounding landscape will be included.  This project is being registered for LEED Silver certification.