BDT supports organizations to realize their core purpose:
Improving the user experience.

Serving the Customer’s Customer

The people who occupy our spaces are the central focus of our practice. We improve the user experience through a creative design process of investigation, stewardship and solution-making.

Identifying Needs Across Disciplines

Because our team is agile and trained in complementary disciplines, our projects act as bridges. We save you time and effort by carefully managing the design process.

Building Good Neighbors

Every new and renovated space exists in the context of place. We learn about your place, and help construct good relationships.


Originating in 1983 as an energy-conscientious practice, BDT has incorporated sustainable design principles routinely for over 30 years. We consider the integration of a built work within its time and place synonymous to a successful practice.


David Panich & Michael Noel combine architecture practices in Athens, OH

April 4, 2014

Panich & Noel changes name to BDT

August 08, 2017

BDT opens Columbus, OH office

July 07, 2018

BDT acquires Berberich Design, opening an office in Rapid City, SD

September 04, 2018

BDT moves to new Athens, OH location


Nicholas Bittner

CFO, Principal Architect, AIA

Nicholas sees the big picture. A background in journalism and urban planning flavors his architectural designs and project management efforts with an awareness of context, environment, and long-term impacts.
• Master of Architecture, University of Oregon
• Master of Arts, Political Science,
Ohio University
• Bachelor of Science, Journalism,
Ohio University

Donald J. Dispenza

CEO, Principal Architect

Don has designed in the United States and abroad since 1998. He has a soft spot for large-scale, institutional architecture, and therefore is excellent at leading team collaborations.
• Master of Architecture, Miami University
• Bachelor of Architecture,
The Ohio State University

Jim Thomas


Jim oversees the firm’s Construction Management activities. He’s the person for project permits, construction details, cost estimations, project supervision, and field observation for private or public clients, construction managers, and contractors.
• Associate of Architectural Technologies, Del Mar College

Viviane Herbert

Associate Principal, Creative Director

Viviane works to simplify and improve upon interaction with the built environment. She explores Interior Design beyond what is immediately perceived, through to the smaller parts of the whole. She creates public spaces that provide uplifting experiences, following the end user throughout the rest of their day.
• Bachelor of Health and Human Services, Interior Design, Ohio University

Ray Berberich

Associate Principal, Creative Director

With a specialization in Experiential Graphics, Ray is all about communication. He can move people through spaces with wayfinding, activate a brand, or help a business or community to enhance its built environment.
• Bachelor of Science, Industrial Design, University of Cincinnati
• Associate of Science, Civil Engineering,
Cincinnati State


Grant DeLanceyDesigner
Steve SandersDesigner
Tim MaceDesigner
Allison SummersDesigner
Michelle WilliamsDesigner
Kenzie ThomasDesigner
Melissa BittnerOffice Manager
Gina ButterworthController