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At Gym Design Group, we work closely with our clients to create and deliver the optimal wellness experience. We design your space while partnering with architects, interior designers and contractors to fully optimize your fitness amenity into your building design. The traditional fitness facility is evolving in today’s highly competitive market. 


Gym Design Group provides clients with a tailored experience. We begin with a thorough evaluation of your proposed space while implementing ease of use, aesthetics, functionality, durability and safety along with current/future trends to craft the optimal solution for each client.

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Steve Colwell


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As founding partner and principle for Gym Design Group, Steve oversees the core values and vision for the company. A 28 year fitness entrepreneur, Steve is also the founder and CEO for Opti-Fit Fitness Solutions. With a passion for fitness and design, he has worked with Fortune 500 companies, national apartment developers, professional sports organizations and numerous A-level health clubs. Steve graduated from University Idaho with a degree in Exercise Science and is an avid mountain bike enthusiast.

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Eric Konz


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Eric oversees the day to day operations and overall execution for Gym Design Group. Focusing on client relations and strategy, Eric provides leadership and interpersonal skills in his collaboration with team members and clients. He has designed and consulted on numerous high profile projects including UNLV and Greystar Real Estate Partners, the largest apartment manager and developer in the US.  A diehard Green Bay Packer Fan and Milwaukee Bucks Fan, Eric graduated from the University of Wisconsin with a degree in Kinesiology.

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Stephan Hermann

Creative Director

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As Creative Director, Stephan works across all divisions to ensure that Gym Design Group continues to push the boundaries of impact, innovation and client experience. He identifies real-life emerging wellness trends and drivers that impact our clients vision for their fitness amenity. Stephan has over 22 years experience in the fitness industry. This experience combined with his deep knowledge of gym design and branding gives Stephan a unique and forward thinking approach to each and every design. A former track and cross county competitive runner, Stephan enjoys stand up paddle boarding and traveling abroad.

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Levi Hermosa

Head of Design

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As Head of Design, Levi is responsible for all aspects of the design process from concept to completion. He provides design direction, ADA compliance, spatial planning and consultation with architects, interior designers and contractors. Levi holds a degree in Civil Engineering from the University of California, Davis and also serves at Lead Designer for Opti-Fit Fitness solutions. Levi enjoys tennis and hiking throughout Northern California.

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