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About Us

Mary DeWalt Design Group is a national, award-winning interior design firm, specializing in model home merchandizing. We also provide interior design services for custom residential and commercial clients. 

Design with purpose!


Meet the Team


Mary DeWalt


I’ve been practicing model home merchandising for the last 34 years and my passions for good design and the home building industry are stronger than ever.  I believe in supporting NAHB and local associations for the advocacy they provide for our industry.  I am blessed to have a fabulous team of designers and staff who make it all happen and understand that exemplary customer service trumps everything else.  Add to that an “oh so dreamy husband” and life couldn’t be better!

Contact Mary!

Craig Dorman

Senior Vice President

As long as I can remember, if I wasn’t outside playing a sport, I was inside drawing.  I have always gravitated toward art and have found the perfect fit with interior design.  In 2003, I received my BA in interior design from Southwest Texas University.  I began my career in 2004 with MDDG as a design assistant and quickly climbed the ladder to senior designer. After a few title changes and 10+ years at MDDG, I am currently the Sr Vice President.

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    Katharine Nobles

    Senior Designer

    Architectural details and finishes interest me the most about interior design. I enjoy working closely with our clients on the specification process and design development for our projects. After receiving my BA in Interior Design at Texas State, I started my career in hospitality design before joining the MDDG team. As native Austinites, my husband and I are raising our two beautiful children, Jaxon and Joslyn, in this great city. I am truly blessed to earn a living doing what I love!

    Contact Kat!

      Samantha Eben


      In 2016, I received my Bachelor of Arts in Interior Design from Sam Houston State University. I settled in Austin to start my career as an interior designer. After working in the commercial field, I decided to pursue my interests in residential design. MDDG was a perfect fit! I am lucky to have found such a great firm that allows me to pursue my passion. Outside of work I enjoy going on adventures with my husband John and son Calvin, reading, and relaxing at home with our two cats, Ophelia and Archer.

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        Amber McFee

        Director of Finance

        I bring over 15 years of extensive experience in finance and accounting, operations, and human resources. With a proven track record of success in supporting the achievement of organizational revenue and profit goals through effective use of metrics, process improvements, and implementation of new technologies. I enjoy spending time with wife and numerous animals on our small farm. 

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