ArchDaily | Broadcasting Architecture Worldwidethe world's most visited architecture website

Sign up now and start saving and organizing your favorite architecture projects and photos


Find the most inspiring products for your projects in our Product Catalog.


Get the ArchDaily Chrome Extension and be inspired with every new tab. Install here »


Nominate now the Building of the Year 2017 »

  1. ArchDaily
  2. Projects
  3. Office Buildings
  4. United States
  5. Murphy/Jahn
  6. 2009
  7. 1999 K Street / Murphy Jahn

1999 K Street / Murphy Jahn

  • 01:00 - 13 November, 2010
1999 K Street / Murphy Jahn
1999 K Street / Murphy Jahn, © Rainer Viertlboeck
© Rainer Viertlboeck

© Rainer Viertlboeck © Rainer Viertlboeck © Rainer Viertlboeck © Rainer Viertlboeck +12

  • Architects

  • Location

    1999 K St NW, Washington, DC 20036, United States
  • Architects

    Murphy Jahn
  • Lead Designer

    Helmut Jahn
  • Associate Architect

    WDG Architecture
  • Structural Engineer

    Tadjer Cohen Edelson
  • Mep

    GHT Limited
  • Special Structures

    Werner Sobek Ingenieure
  • Client

    Vornado / Charles E. Smith
  • Area

    309000.0 sqm
  • Project Year

  • Photographs

From the architect. The recipient of the 2010 Washington Building Congress - Craftsmanship Award, 1999 K Street aims to provide a work environment in Washington DC that is responsive to its urban surroundings. Murphy Jahn approached this design focused on filling each work space with natural light. 

© Rainer Viertlboeck
© Rainer Viertlboeck

The result is a simple, efficient and sustainable building. 1999 K Street received LEED Gold Certification in 2009.  Follow the break for more photographs and the architects description about the design.

© Rainer Viertlboeck
© Rainer Viertlboeck

The simple rectangular footprint and central core results in an efficient and flexible floor plate. The steps taken toward sustainability include an efficient thermal envelope characterized by the fully glazed façade and green roof. Minimal central air systems are incorporated into the ceiling and lighting systems.

© Rainer Viertlboeck
© Rainer Viertlboeck

Responding to the urban situation, the entrance from the corner is marked with a full height illuminated screen wall and a luminous lobby. 

© Rainer Viertlboeck
© Rainer Viertlboeck

The lobby’s minimally detailed exterior wall maximizes transparency revealing the entrance lobby. The dynamic diaphanous interior glazed lobby by the lighting artist Yann Kersalle is an interpretive light sculpture based on nature; water, vegetation and air.

© Rainer Viertlboeck
© Rainer Viertlboeck
Location to be used only as a reference. It could indicate city/country but not exact address. Cite: "1999 K Street / Murphy Jahn" 13 Nov 2010. ArchDaily. Accessed . <>
© Rainer Viertlboeck

1999 K 街大楼 / Murphy Jahn