Senger Design Group (SDG) is an award-winning, national interior design firm founded in 1991 in Colorado Springs, Colorado. SDG specializes in commercial, residential, hospitality, multifamily, senior and affordable housing, education, government, and historic design projects throughout Colorado and across North America. We professionally manage projects from initial concept to final installation. SDG was founded by Cindy Senger, Principal Designer, and is headquartered in the heart of historic