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Washington Headquarters Services

New headquarters consolidates more than more than 6,400 DoD personnel




Alexandria, Virginia




Washington Headquarters Services is a 3.1 million square foot federal agency building that provides operational and maintenance support to various government bodies in the National Capital Region. The facility houses the Defense Base Realignment and Closure (BRAC) Commission and consolidated approximately 6,400 employees.

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Our Approach

Southland provided design-build expertise for sheet metal, piping, plumbing, fire protection, and building automation services. This project required a strict and accelerated schedule set forth by BRAC program guidelines, as well as several contract requirements from ASHRAE 90.1, U.S. Green Building Council LEED Silver, and the Energy Policy Act of 2005.

To address the complexity and magnitude of this project, our engineers developed an innovative outdoor air application. We installed a fan-powered induction terminal unit system with a dedicated outdoor air system to produce a high-efficiency cooling system. A sensible chilled water loop was then utilized to provide cooling to the fan-powered induction units and information technology loads, in order to provide humidity, temperature, and ventilation control.


Facing a hard deadline from the client, the design-build team delivered a highly successful, award-winning facility five weeks ahead of schedule.

  • Exceeded the minimum energy goals

  • Achieved LEED Gold Certification

  • Office towers used 30 percent less energy and 45 percent less water than baseline projection

  • High quality safety program with positive results

  • Allowed the owner to have an aggressive tenant move schedule

  • Upon completion, Southland was awarded an operation and preventative maintenance contract for the building.

  • Successful Partnerships

    Owner: Department of Defense
    GC: Duke Realty and Clark Construction Group, LCC
    Architect: HKS Inc. and Wisnewski Blair & Associates Ltd.
  • Award-Winning Results

    2011 AGC Best BIM Mechanical Project – New Construction Over One Million S.F.

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