Awards of Excellence 2019
FOX Architects + Pelli Clarke Pelli Architects
Alexander Court

Alexander Court
Award of Excellence
Best Washington DC Office Over 150,000SF

Project Team

Rockrose Development Corp. - (Developer/Owner)
Pelli Clarke Pelli Architects - (Design Architect)
FOX Architects - (Architect of Record)
DAVIS Construction - (General Contractor)
Avison Young - (Broker)

Executive Summary

Alexander Court is a trophy office complex created by the transformation and recycling of an older structure, nearing the end of its useful lifespan. The orchestration of zoning lot assemblage strategies resulted in the ability to expand 2000 L Street vertically, four additional floors. This required connection to the existing 2001 K Street building, resulting in the creation of a 12-story atrium, new central lobby and lobby mezzanine that directly connects L Street to K Street. The result is a trophy class office complex that is revitalizing the urban environment on a city scale.

The program included: the addition of 200,000 square feet over four new floors, to 2000 L Street, totaling 530,000 gross square feet of FAR; the creation of a new 12-story atrium to connect 2000 L to 2001 K Street; the repositioning of the existing eight-story 2000 L Street, which included new facades, all new building systems, new public spaces, new amenity functions and complex structural alterations; all new building systems; and the surgical renovation of 2001 K Street. The combined new trophy building, Alexander Court, contains 765,000 gross square feet of FAR and over one million square feet of construction.

The building is sculptured to create a more dynamic, fluid response, visually reducing the building’s incredible mass. The rhythm and modulation of the façade mullions further reinforces this through their play with natural light. This design is then pulled into and through the lobby and atrium, uniting the whole.

A new central lobby, located at the prominent corner of 20th and L Streets, creates a civic-scaled response to the urban fabric. It visually connects the building’s massing to the interior public spaces and ultimately unites a central atrium with the whole. The lobby’s mezzanine creates a clear and direct connection between L Street and K Street, enabling and fostering social interaction and circulation. Architecturally, the atrium’s interior vertical wood fins both control natural daylight and link this space to elements of the main lobby and building exterior. The new atrium contains its own elevator core and bridges at each floor, uniting the north and south masses and providing for flexibility in current and future tenant planning.

The building utilizes the city’s new Height Act to create interior and exterior building common amenity areas at the penthouse level; in addition to dedicated office space. State-of-the-art systems include a new Dedicated Outdoor Air System (DOAS) HVAC, providing healthier air environments with reduced energy costs.

Alexander Court is an example of the transformation of an obsolete structure to create new, trophy building that is revitalizing the urban fabric. This is a responsible and sustainable approach to developmen


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