Definition:
A traditional project delivery method where the project is divided into three sequential phases: design, bidding, and construction. The owner contracts separately with designers and builders.
Key Components:
- Design Phase: An architect or engineer develops detailed project plans.
- Bidding Phase: Construction firms bid on the project based on the completed designs.
- Construction Phase: The selected contractor executes the construction as per the design specifications.
Use Cases/Industries:
- Infrastructure Projects: Highways, bridges, and public buildings.
- Energy Facilities: Standard power plants and substations.
Advantages:
- Clear Roles: Distinct separation between design and construction responsibilities.
- Competitive Pricing: Bidding process can lead to cost savings.
Challenges:
- Longer Timelines: Sequential phases may extend project duration.
- Potential for Disputes: Limited collaboration between design and construction teams can lead to misunderstandings.
Related Terms:
Design-Tender-Build, Lump Sum Contracting
Example:
A municipal government uses the DBB method to construct a new public library, hiring an architectural firm for the design and then soliciting bids from construction companies to build according to the finalized plans.
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Synonyms:
Traditional Delivery Method, Sequential Contracting
