1999 K Street is a building of discriminating taste for the Washington client seeking a new alternative to the Washington box. It represents a new attitude of the work environment, one that is responsive to the urban situation, which treats the work space as an extension of the city, and which provides a comfortable light filled work environment in the form of a simple sophisticated fully glazed cubic prismatic characterized by the following:Architecture of lightness, transparency, openness, daylight, and connection to the city Architecture of efficiency, flexibility, transparency, and constructionArchitecture of construction- elevating the constructed components of the building to artArchitecture which removes all but that which is essentialResponding to the urban situation, the entrance from the corner is marked with a full height illuminated screen wall and a luminous lobby. The lobby is marked by a minimally detailed exterior wall of the maximum transparency revealing the entrance lobby. Illuminated by a dynamic diaphanous interior glazed lobby the lighting artist Yann Kersalle envisions this lobby as an interpretive light sculpture based on nature; water, vegetation air.