LL 84, or Local Law 84, is a crucial component of New York City’s sustainability efforts, focusing on energy benchmarking for buildings. This legislation mandates that building owners annually measure and report their energy and water consumption, helping to establish a baseline for energy efficiency and identify areas for improvement. By providing transparency regarding a building’s energy performance, LL 84 aims to drive energy conservation efforts, reduce greenhouse gas emissions, and ultimately foster a more sustainable urban environment.