At Keystone Homes, our custom houses are built to the highest possible standards. Our locally owned business creates beautiful custom homes throughout Volusia and Flagler counties in Florida. We focus on giving you high-quality houses at competitive prices. All our houses are certified as "green-friendly, " meaning that we use the most environmentally-friendly materials available today. If you wish, we can even build "smart" houses with the latest up-to-date technology included.