Welcome to Holden Design Group (HDG)—a name trusted for the finest design services focused on wellness, sustainability, and the environment. As an interior and exterior designer in St. Louis, MO, our founder delivers client-centric services, emphasizing environmentally friendly design, products, and lifestyle choices. We are professional—but not pretentious. We simply want to create harmonious living and working spaces utilizing considered and conscientious design. Visit our Spaces gallery to see our past work, and don’t hesitate to contact us to discuss your design project.