Established in 1979, this Iowa-based architecture firm has grown to more than 65 people in 2008.

Recognized for its seamless blend of architecture, interior design, and landscape architecture, OPN has recently distinguished itself with the first LEED NC Silver Certified corporate office building in Iowa.

OPN’s studio environment encourages collaboration within the office and a philosophy focused on an interactive design process with our client and consultant teams.

OPN’s deep conviction that a design should be primarily influenced by the client’s goals and objectives and the context of the surrounding environment has resulted in no identifiable signature style. Our projects reflect our clients.

The professionals at OPN enjoy and appreciate each opportunity to work with a client. To turn their vision into reality is an amazing and rewarding experience.