2101 L Street 1
2101 L Street 2

2101 L Street, NW

Transformation of an existing 10-story office building, originally built in 1975, into a Class “A” structure. The modernization of the base building included: the replacement of the former facade with a modern, metal, and glass curtain-wall system; removal of all previous interior improvements; the systemic upgrade of the mechanical, electrical, plumbing (MEP), and life safety systems; modification of the service core and the addition of a new entry and entry canopy. The base building received the 2008 NAIOP Award of Excellence, Best Urban Renovation award.

In addition to the base building modernization, SK&A also provided various tenant build-out services, including structural design services for the U.S. Green Building Council (USGBC) Headquarters. The two-story, 75,000 sf build-out for USGBC was designed to achieve a platinum rating under the LEED-C1 Version 3.0 system. The project received the Best of 2009 Project of the Year for Interior Design/Tenant Improvement from Mid-Atlantic Construction.

Project Details


JBG SMITH Properties,
WDG Architecture



Square Footage


Year Completed