1999 K Street

Washington, DC, N/A / United States of America

The client of 1999 K Street sought a fresh alternative to the standard Washington “box”. 1999 K Street represents a new attitude towards work environments; one that is responsive to the urban situation and treats the work space as an extension of the city, providing comfortable, light-filled spaces within the form of a simple yet refined fully glazed cubic prism. 1999 K Street is defined by it’s lightness, transparency, and clean lines. The building is laid out on a rational 30’ by 30’ structural grid with a 5’ façade grid ensuring flexibility for the office layout and efficient constructability. Responding to the urban situation, the entrance from the corner is defined by a full height glass screen wall and a luminous lobby. Described as a “Jewel Box”, the lobby is illuminated by a dynamic ever-changing diaphanous glazed interior conceived by the lighting artist Yann Kersale. The lobby was envisioned as an interpretive light sculpture based on natural elements: water, vegetation, and air.

Architect of Record

WDG Architecture

Associate Architect



1925 K Associates LLC (Original Client), Deka USA K Street LP (Current Owner)

General Contractor

Davis Construction


  • Werner Sobek
  • Tadjer Cohen Edelson
  • GHT Limited