Our challenge is the large-scale reconfiguration of the existing 2001 K Street and 2000 L Street office buildings in Washington, DC that will transform the two structures into “Alexander Court,” an 800,000-square foot comprehensive Trophy Class building. The project consists of a four-story vertical extension and new facade for the 2000 L street building, and provides additionally new public spaces for tenants, including a central glass atrium, fitness center, conference center and roof amenity based on the newly enacted DC zoning regulations. Alexander Court will also feature improvements to the vertical transportation systems, MEP building systems, new storefronts, canopies and interior finishes.
The reconfigured building’s form is expressed as a series of slanted, interweaving masses breaking the 400-foot long L street façade into smaller glassy components. This expression, together with the east and west projections and upper floors setbacks, helps to conceal the building’s mass, revealing an architectural scale more consistent with neighboring structures. Furthermore, the vertical mass is divided into smaller scale sections composed of the base, mid-section and top that changes perceptions of height. The centerpiece of the project is a new, expansive two-story lobby at the corner of 20th and L Streets, transitioning into the 12-story central atrium space and continuing into the former main K Street building entry. The grand lobby is much taller than the typical upper floors and is articulated on the exterior with an open and inviting appearance to delineate the main point of entry. The Atrium creates a spine between the existing 2001 K and 2000 L street office blocks. The project utilized Dedicated Outdoor Air System (DOAS) is a more efficient system that provides a healthier air environment and permits higher ceilings, more daylight and better views.
The design team improved the street-front presence by introducing a new grand lobby and full height atrium that connect the 2001 K and 2000 L Street buildings together at a grand scale to produce the new Alexander Court. A new, state-of-the-art glass curtain wall façade facilitates modern workplace strategies while providing transparency. Floor-to-ceiling glass engages important view corridors and maximizes natural daylight within. A HVAC Dedicated Outdoor Air System (DOAS), is woven through the existing and new structure to provide healthier, more efficient air quality and reduce energy costs. New life was brought to this building, transforming it into a sustainable, vital, workplace environment. This project illustrates that antiquated office buildings, at a large -scale that have outlived their usefulness may in fact be ‘recycled’ into new, vibrant structures.