Which design phase focuses on refining the design, resolving details, and preparing construction documents?

• A. Design development
• B. Schematic design
• C. Construction administration
• D. Post-occupancy evaluation

Answer: (B)

During design development, the design concept is refined into a more concrete solution. Details are resolved—dimensions, relationships between spaces, material choices, and how building systems come together—so the work can be documented in a coordinated set of drawings and specs that move toward construction documents. This phase brings clarity and coordination to the design, providing enough specificity to prepare the construction documents. Schematic design stays at the conceptual stage, focusing on overall layout and idea rather than particulars. Construction administration occurs after construction begins, while post-occupancy evaluation happens after the building is in use.