About Us

/About Us
About Us2017-07-07T18:06:31+00:00


At GW Design Group, we are committed to serving our clients well.  We are focused on providing safe well-functioning buildings for our future building occupants.  Depending on the building use, we envision safe and enjoyable building environments for students in schools and universities, patients in healthcare facilities, office building employees, retail shoppers and diners, vacationers in hotels, and families in multi-family facilities.  Our team has multifaceted experience including managing very large projects as well as small projects.  We are proficient at designing structures using various construction materials including structural steel, concrete, masonry and wood or timber construction.  We have produced projects of just about every type including those listed to the right.

Our practice is concentrated in the south and southeastern United States including Texas, Alabama, Florida, Georgia, South Carolina and North Carolina.  More than half of our projects are located near Atlanta and the surrounding counties of Cobb, Fulton, Dekalb, Gwinnett, Walton, Hall, Forsyth, Cherokee, Paulding, Bartow, Douglas, Fayette, Clayton, Henry and Rockdale.  We have provided the structural design for many projects in Athens-Clarke County as well as Macon in Bibb County.


  • Commercial

  • K-12 Education

  • Higher Education

  • Technical Education

  • Financial

  • Governmental

  • Healthcare

  • Hospitality

  • Housing

  • Parking

  • Recreational

  • Renovation

  • Retail

  • Industrial

  • Multi-Family Residential

  • Dormitories

  • Telecom

  • Adaptive Reuse

  • Warehouses

  • Specialty Structures

  • Senior Living

  • Dental and Medical Offices

Thad Gilliam, P.E., LEED AP BD+CPrincipal
Thad has over 30 years of experience in structural engineering design and management. He has managed large projects costing over 100 million dollars, as well as efficiently managed small scale projects. Thad is a registered Professional Engineer and is a LEED Accredited Professional. He earned a BSCE with Honors and a MSE from University of Texas at Austin.

He is registered in numerous states, a member of Chi Epsilon and Tau Beta Pi honor societies, and a member of the following professional organizations: American Concrete Institute (ACI), American Institute of Steel Construction (AISC), and Structural Engineering Association of Georgia (SEAOG).