Please upgrade your browser. This site requires a newer version to work correctly. Read more
Member at Platinum level


Member since 1996

3223 Grace Street NW
Washington, DC 20007

“As one of the most globally influential organization for green building advancement and advocacy, the USGBC acts as a critical partner for HOK to advance its own mission of designing high-performance buildings and human environments. The credibility of the USGBC and its programs is an immensely useful tool for HOK to use with its clients and project partners as we collectively aim to advance the environmental and social performance of our work.”

  • 23 offices on three different continents

  • 750 LEED Accredited Professionals

  • 181 LEED certified projects

  • Named a top sustainable role model for the past four years by DesignIntelligence

  • As a global design, architecture, engineering and planning firm, HOK is driven by a mission to deliver exceptional ideas and solutions through the creative blending of human need, environmental stewardship, value creation, science and art. HOK’s global practice is made up of people committed to being responsible stewards for the environment, enabling them to deliver solutions that satisfy clients’ needs while creating lively, memorable places.

    Time and again, HOK has demonstrated its commitment to environmental responsibility, working closely with local and national governments on green building policy guidelines and implementation. Colin Rohlfing from HOK’s Chicago office was appointed to the AIA’s new Sustainability and Health Advisory Committee that will advance sustainable education and training across the profession. Anica Landreneau from HOK’s Washington, DC, office was appointed to the DC Green Building Advisory Council, which supports the mayor and district council in the implementation of the DC Green Building Act.

    In 1999, HOK released The HOK Guidebook to Sustainable Design, published by Wiley. The Guidebook was based on the compilation of work from many HOK projects and was recognized as one of the most influential real-world guides for improving building performance, health, productivity and long-term value through sustainable design across the industry. Wiley published HOK's revised and expanded second edition of the book in 2005.

    In 2013, HOK and Biomimicry 3.8 published a groundbreaking, 178-page Genius of Biome report. Available to all online, this highly visual publication describes how nature provides heating, cooling, shelter, food and water. Our report identifies specific strategies that planners and designers are using to mimic these natural processes in the design of bio-inspired buildings, communities and cities.

    Eager to play a meaningful role in advancing sustainability across the built environment, HOK recognizes that the green building movement hinges on a group effort. By advancing the development of resources that are of use to industry professionals worldwide, the design firm is doing its part to raise the tide that will lift all ships.

    January 15, 1996 - Present
    Company details
    23 offices on three different continents
    LEED APs on staff