A design-build company is a business that handles both the design and construction of a building project. Instead of hiring separate designers and builders, you work with one team that does it all. This makes the process easier and faster because there’s only one group responsible for the entire project. They plan, design, and build everything you need, so you don’t have to worry about managing different people. This method helps reduce confusion and makes sure the project runs smoothly from start to finish.
Checkout this Wikipedia article for more info.