1,400,000 GSF, 130060 M2
Architecture, Engineering, Programming
LEED for Core & Shell (CS) LEED-CS-Gold
Craftsmanship Award Winner
adaptive re-use, chilled beam, dedicated outside air, deep green, energy efficiency, energy modeling, energy recovery, green design, greenhouse gas emission, high-performance glazing, indoor environmental quality, leadership in energy and environmental design, leed, lighting controls, sustainability, sustainable building, sustainable design, transit-oriented development, united states green building council, usgbc
Following a three-month design competition, SmithGroupJJR was selected to deliver this building owner's goals: reposition 1970s property into the largest, most secure 21st-century workplace in the nation's capital, while achieving a highly sustainable design.
A careful balance of aesthetic approaches and technical requirements resulted in a flexible, open workplace that can accommodate 5,000 employees. Chilled beams, as the primary terminal device in the HVAC system, generate a 22% energy cost savings by eliminating for most of the year the need to run the 4,800-ton chiller plant. A one-acre garden courtyard that welcomes tenants and guests happens also to be a green roof, topping a basement garage space for 1,500 vehicles.
The decision to adapt and reuse the original concrete frame may have been the most important decision, representing not only a $60 million savings in project cost, but also a tighter construction schedule and smaller waste stream. And of the 25,000 tons of waste from the project, 75% was diverted from landfills.
Chilled Beam Technology
A continuing education course in Architectural Record outlines Chilled Beam technology
The Big Chill
A Federal Building's Green Makeover Features An Innovative Air System
The Making of Washington's Biggest Deal
Urban Land features an article on the story behind Constitution Center.