In a Design-Bid-Build project, who designs the project and prepares the construction drawings and specifications?

• A. Owner
• B. Architect
• C. Contractor
• D. Construction Manager as Adviser

Answer: (B)

In Design-Bid-Build, the design responsibility rests with a design professional contracted by the owner. The architect is the one who develops the project concept into detailed construction drawings and written specifications that define materials, assemblies, dimensions, and workmanship. These documents communicate the design intent and form the yardstick for bids and for actual construction, ensuring the builder constructs what was planned and compliant with codes and standards. The owner oversees the project and contracts the builder after bidding, but does not create the drawings themselves. The contractor builds according to the architect’s documentation, not design it. A Construction Manager as Adviser may assist with coordination, but the design work and preparation of construction drawings and specifications come from the architect in a traditional DBB setup.