Burleson Design Group | Hill Country Architect Burleson Design Group is a full-service architectural firm specializing in the custom design of distinctive hill country homes and ranch retreats throughout the state of Texas. hill country, hill country homes, hill country designs, hill country architect, custom home, farm house, ranch retreat, retirement home, weekend retreat, party barn, dog trot, guest cabin, car barn, outdoor living, reclaimed, rustic, wimberley, central texas