1,600 people in 24 cities living 4 values for 1 goal:
To use design to help our clients succeed.

We create exceptional environments that meet our clients' most complex design challenges.

We inspire people through our work by expressing timeless cultural, organizational and personal values.

We connect people and place with ideas that come from many minds and imaginations.

We care about serving our clients, enriching lives, improving communities and protecting our natural environment through design.

We are a global architecture, design, engineering and planning firm.

60+ Years of Design + Innovation

A LEED Gold Landscape for the Coast Guard

U.S. Coast Guard Headquarters
Washington, DC, USA

HOK provided landscape architecture and interior design services for the Coast Guard’s new LEED Gold headquarters in Washington’s Anacostia neighborhood.

Overlooking the Anacostia River and the capital’s monumental core, the 11-story project was commissioned by the U.S. General Services Administration.

HOK’s site design for the courtyards, edges and green roof provides continuity between the surrounding woodlands and the historic St. Elizabeths west campus. The layout of the courtyards, as with the building, steps down from east to west toward a low area of the campus. This progression along a 120-foot hillside provides a canvas for the landscape concept. The physiographic region transitions from the Blue Ridge and outcrop barrens of the Piedmont plateau region to the lowlands of the coastal plain.

The site’s exterior spaces are high-performance landscapes that provide ecological, aesthetic, programmatic and educational functions.

A green roof features 400,000 square feet of plants from the Blue Ridge, Northern Piedmont, Southeastern Plains and Middle Atlantic Coastal Plain areas. Rainwater that falls onto the green roof permeates through the plant roots and soil, is captured in the drainage system and travels down to the stormwater pond for reuse in irrigation.

Because this had been a contaminated site, large amounts of soil were removed and replaced with various custom soil blends.




1.2 million sq. ft. / 111,000 sq. m.
31 acres / 12 hectares


Interior Design
Landscape Architecture 


DBIA- Design Build Honor Award, Civic Building

NAIOP Maryland/ DC Chapter- Award of Excellence, Best Institutional Facility

NAIOP Maryland/ DC Chapter- Award of Excellence, Best Sustainable Project


Number of plug plants


Square feet of green roof sedum mats


Number of shrubs


Number of trees



11 June 2015
“American Society of Landscape Architects Tours U.S. Coast Guard Headquarters”
HOK News

31 August 2014
“U.S. Coast Guard Headquarters, St. Elizabeths West Campus, Washington, United States, HOK”

7 October 2013
“Washington Business Journal on the New U.S. Coast Guard Headquarters”
HOK News