When Lauren Ross and her family moved to Austin, she was hoping to move into another older house with all the charm she had lived with in West University. But that was not to be. Instead she found herself drawn to a newer house filled with Hill Country ambiance. The capitol of Texas and home to the University of Texas, Austin, is famous for its native cream-colored limestone. A popular building material in this area, many houses are invariably clad in the stone. And indeed, the exterior of…