A public owner picks the delivery method before a general contractor ever sees the bid, and that single choice decides who can pursue the project, what the proposal must contain, and how the award is scored. Design Bid Build asks for a hard price on a finished design. Design Build asks a contractor to carry design and construction together on a qualifications and price basis. The same building can come to market either way, and the two are entirely different pursuits.
What the delivery method decides on a public building bid
Under Design Bid Build the owner completes design through a separate architect, then issues complete drawings and specifications for a lump sum, usually awarded to the lowest responsive bidder. Under Design Build the owner issues a request for qualifications or proposals, and the contractor assembles a design team and carries single point responsibility for design and construction, often scored on qualifications, technical approach, and price together. The method sets the team you need on day one, the documents you submit, and whether price alone wins.
Why the delivery method is easy to miss
The delivery method is named in the solicitation and the procurement section of the project manual, not always in the title. A listing that reads only as a building project number can be a Design Build request with a qualifications phase, a mandatory pre bid meeting, and a design team due at submission. A general contractor scanning titles across SAM.gov and a dozen state portals can chase a Design Bid Build lump sum it is ready for and overlook a Design Build pursuit that needed a designer engaged weeks earlier.
How an AI bid agent sorts Design Build from Design Bid Build
An AI bid agent reads the full solicitation and classifies the delivery method from the procurement language, not the title, then tags each opportunity Design Bid Build, Design Build, or Progressive Design Build and surfaces the award basis beside it. It flags the qualifications phase, the design team requirement, and the proposal deadline so the pursuit decision is made with days to act, not hours.
You can see the classification, fit scoring, and daily digest running in our AI bid agent demo for general contractors. The agent reads the delivery method out of Division 00 and 01 and scores each project against the methods you are set up to pursue.