Who provides specialized expertise and coordinated documentation across structural, MEP, and civil disciplines in PDD projects?

• A. The owner.
• B. Consultants.
• C. The general contractor.
• D. The city inspectors.

Answer: (B)

Specialized knowledge and coordinated drawings across structural, MEP, and civil work come from consultants hired by the owner. These professionals—structural, mechanical/electrical/plumbing, and civil engineers—bring the depth of expertise for each discipline and actively coordinate their designs so everything fits together in one set of documents. They lead the interdisciplinary integration, resolve interfaces, and ensure the documentation is coherent before construction starts, often using collaborative tools like BIM to prevent clashes.

The owner may hire and fund these specialists, and the general contractor will handle construction execution and sequencing, with some input on constructability, but they do not provide the primary, integrated multi-discipline design documentation. City inspectors review compliance and perform inspections, not the creation or coordination of the design documents.