This lecture explores performance evaluation of intelligent buildings, focusing on measurable indicators such as energy use, carbon emissions, thermal comfort, indoor air quality, water use, occupant satisfaction, resilience, and maintenance. It reviews major rating systems including LEED, BREEAM, WELL, NABERS, ENERGY STAR, GRIHA, and the Smart Readiness Indicator (SRI), and introduces Post-Occupancy Evaluation (POE) methods for comparing design intent with actual building performance.