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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

Preserving Our Air and
Space Treasures

National Air and Space Museum Steven F. Udvar-Hazy Center
Chantilly, Virginia, USA

“Following an extremely successful opening, the new facility continues to thrive and, like its founding museum, promises to be one of the most visited museums in the world.”

Harper Designs’ Great New Buildings of the World

Located near Dulles Airport, the center is an extension of the original National Air and Space Museum designed by HOK on the National Mall.

Together, the two sites showcase the world’s largest collection of aviation and space artifacts.

The design showcases the museum’s artifacts. It is configured like an airport terminal, with a “land side” and an “air side.” The land side is the realm of people, not artifacts, and can be open after hours. The air side begins with the exterior tarmac housing the large artifacts: the main hangar, the space hangar, the restoration hangar and artifact storage.

The exhibition space is 10 stories high and is as long as three football fields. Planes are suspended from 21 arched steel trusses. Visitors can study suspended planes from two elevated observation areas.

An active runway allows planes to fly in and taxi directly to the museum.

To ensure conservation of these artifacts, the design followed careful environmental parameters related to temperature, humidity, light, air pollution, insects, pests, vibration and noise.


708,000 sq. ft. / 65,800 sq. m.


Interior Design
Landscape Architecture


AIA Northern Virginia – Award of Excellence

Fairfax County Exceptional Design Awards Program – Honor Award

NAIOP Northern Virginia – Award of Excellence, Best Building