Shawn Mahoney, AIA


Seattle, Washington

> High tech market leader
> Business critical design and construction
> Corporate campus development
> Aviation design and construction

An accomplished team builder and leader, Shawn provides program and project management leadership to clients in the complex high tech and business critical markets. Shawn combines his training and experience as an architect with his experienced management skills to deliver solutions for clients. His background and real experience provides him the ability to fully understand the design, build the right team, and translate the client vision into reality, offering actionable direction to any issues that may arise.

Shawn leads and communicates in an honest, straightforward and timely manner. He recognizes that it takes a highly collaborative team to deliver a successful project and proactively creates opportunities for the team members to fully utilize their strengths in the service to his clients. He fosters an environment that requires everyone to perform and contribute to the success of the engagement.

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Blog Posts

OAC Volunteers at Mary's Place's Holly Jolly Holiday Party

While the holidays are often thought of a time to … Read more >

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Jeff Jurgensen & Jonathan Miller Receive Community Leadership Awards

Congratulations to Jeff Jurgensen and Jonathan Miller for receiving Community … Read more >

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OAC Olympia volunteers for Second Harvest

OAC Spokane collaborated with a volunteer program that aligns with … Read more >

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Kasey Wyatt promoted to Principal at OAC

If you’ve met Kasey, you know why she was promoted … Read more >


Cynthia Balzarini

PRACTICE AREAS > Project management > Scheduling > Contract management … Read more >


Randolph Maddox

PRACTICE AREAS > Construction management > Program and project management … Read more >

Construction Management. Architecture. Engineering.

OAC has a history of success with specialized design and construction because we love what we do. We serve our clients as collaborators, and we design and manage projects that improve where people live, work, learn and play. Because of this, we’ve gathered a superlative staff of professionals who share our core values, and our vision – do what we love in the service of people who love what we do.