What is the purpose of BIM in PDD and what is a common Level of Development?

• A. To coordinate design data among disciplines; LOD 300–400 is typical for design development and construction documentation.
• B. To manage procurement and contracts.
• C. To schedule construction trades.
• D. To create only 2D drawings.

Answer: (B)

BIM in PDD centers on coordinating and integrating design data across disciplines into a single, shared model. This approach helps teams detect conflicts early, ensure consistent documentation, and enable accurate quantity takeoffs and analyses, all within a collaborative framework for architecture, structure, and MEP.

A common Level of Development for this phase is in the 300–400 range. At LOD 300 the model has coordinated geometry and enough detail to support design decisions and documentation. At LOD 400 the model includes fabrication and assembly details, making it suitable for construction documents and planning for prefabrication. This progression supports reliable coordination and detailed construction information.

BIM’s main value is not simply producing 2D drawings or handling procurement and contracts, though it can support those activities. Its primary purpose in PDD is to provide a data-rich, coordinated model that informs design decisions and documentation throughout design development and construction documentation.