What type of rating assesses a building's operational performance?

The correct choice refers to the Pearl Operational Rating, which specifically evaluates a building's performance during its operational phase. This rating is part of the Estidama framework, focusing on sustainability and efficient resource use in buildings that are already in use. It assesses various operational factors such as energy use, water consumption, and overall management efficiency, providing a comprehensive overview of how well a building performs in a real-world setting.

This rating is particularly valuable because, while design and construction ratings consider the building's initial design and construction phases, the operational rating provides insights that help in making improvements to reduce ecological impacts and enhance sustainability practices over time. This ongoing assessment encourages continuous improvement and adaptation in line with sustainability goals.