Design-Build vs Design-Bid-Build
Design-build uses one entity for design and construction; design-bid-build separates design from construction and usually bids after documents are complete.
Design-Build
- Single point of responsibility
- Faster delivery
- Collaborative pricing
Design-Bid-Build
- Traditional owner control
- Competitive hard bidding
- Clear design before pricing
Key differences
| Point | Design-Build | Design-Bid-Build |
|---|---|---|
| Contract structure | One design-builder contract. | Separate designer and contractor contracts. |
| Procurement timing | Builder can join before design is complete. | Contractor bids after design documents are issued. |
| Coordination | Design and construction coordination sits inside one team. | Owner often manages the designer-contractor interface. |
Example in context
An owner seeking speed may choose design-build. An owner seeking a traditional low-bid process may choose design-bid-build.