Building Commissioning ensures a building performs as intended by inspecting, testing, and verifying system performance against benchmarks. This critical process uncovers defects, optimizes equipment lifespan and ROI, and enhances operational efficiency through proper hand-offs to maintenance crews. While often overlooked due to initial costs and timing, the long-term benefits of commissioning—including verifying paid-for efficiency and ensuring LEED compliance—far outweigh minor project delays, making it a vital step in modern construction.