Design–build is a project delivery method used to deliver a project in which the design and construction services are contracted by a single entity known as the design–builder or design–build contractor. In contrast to “design–bid–build”, the design–builder is a single point of responsibility contract and is used to minimize risks for the project owner. It also reduces the delivery schedule by overlapping the design phase and construction phase of a project.
The traditional approach for construction projects consists of the appointment of a designer on one side, and the appointment of a contractor on the other side. The design–build procurement route changes the traditional sequence of work. It provides the client a single point of responsibility in an attempt to reduce risks and overall costs.