Which project approach helps identify synergies between building systems and reduce costly design changes later...

The integrative process is the correct answer because it brings project team members together early to identify synergies, trade-offs, and opportunities across building systems. In LEED, integrative planning helps teams evaluate energy, water, site, materials, indoor environmental quality, operations, and occupant needs before major design decisions are locked in. This approach can reduce change orders, avoid conflicts, improve system performance, and support cost-effective sustainability strategies. Value engineering only during construction often removes green features after design decisions have already been made. Siloed decision-making prevents coordination among disciplines and can create inefficiencies. A final review after occupancy is too late to influence most design choices. Early collaboration is essential for optimizing whole-building performance and achieving LEED goals.