Which of the following methods is characterized by the owner holding separate contractual agreements with...

The Design-Bid-Build (DBB) method is characterized by the owner having separate contractual agreements with both the designer (architect/engineer) and the contractor. This is a traditional project delivery system where the design phase is fully completed before bidding and construction begin​.

Sequential Process:

The design phase is completed first, and then contractors submit bids based on the design.

The lowest responsible bidder is typically awarded the construction contract.

Separate Contracts:

The owner contracts separately with a designer/consultant for the project’s design and a contractor for its execution​.

The designer is responsible for planning, while the contractor focuses on construction execution.

Clear Cost and Timeline Control:

Since design is finalized before bidding, the owner knows the project cost, timeline, and scope in advance.

B. Design-Build – In this method, one firm is responsible for both design and construction, rather than separate contracts​.

C. Construction Manager at Risk (CMAR) – Here, the construction manager commits to project costs early and assumes risk for overruns, unlike DBB where the contractor is only responsible for execution​.

D. Engineering, Procurement, Construction Management (EPCM) – This is typically used for large industrial projects, where an EPCM firm manages the entire project lifecycle, including procurement​.

Quality Management in Construction Projects – Contracting Methods​.

Key Characteristics of Design-Bid-Build:Why Other Options Are Incorrect:References: