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

Supporting Employee Health through Sustainability

Wellmark Blue Cross and Blue Shield
Headquarters and Operations Center

Des Moines, Iowa, USA

“Knowing this facility will be around for many, many years to come, we pushed ourselves to do more in terms of sustainability.”

John Forsyth
Chairman and CEO, Wellmark Blue Cross and Blue Shield

As the world’s largest single owner-occupied office building to earn LEED Platinum certification, this facility provides a healthy environment for Wellmark’s people.

Located across from a sculpture garden and park on a former brownfield site, the facility supports revitalization of downtown Des Moines through increased pedestrian activity and retail, dining and transportation amenities.

The unique design celebrates the natural beauty and resources of the Iowa landscape while incorporating basic sustainability principles and promoting employee wellness. An elliptical entry garden and pedestrian walkway is carved deep into the building’s facade, maximizing daylight penetration into the core. The structure is set back from the urban edge to accommodate green space on every side.

The building features reduced energy and water consumption, lower carbon dioxide emissions and improved air quality and lighting to improve employee health and set a new benchmark for healthy, sustainable workplaces.

HOK designed this project in partnership with RDG Planning and Design.


LEED-NC Platinum


603,900 sq. ft. / 56,100 sq. m.


Facility Programming
Interior Design
Landscape Architecture
Lighting Design
Master Planning
Structural Engineering


Engineering News-Record Midwest – Project of the Year

American Society of Landscape Architects Central States – Merit Award


Savings in energy costs


Reduction in overall water use


Amount of construction waste diverted from the landfill


Annual energy cost savings