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About LL84

LL84 requires annual benchmarking data to be submitted by owners of buildings with more than 50,000 square feet for public disclosure by May 1. This will bring transparency for energy and water usage and inform building owners and tenants on how to make their buildings more efficient.

Read Local Law 84: Benchmarking (in PDF)
Read Detailed Summary of Local Law 84 (in PDF)

Benchmarking Rule
The New York City Department of Buildings (DOB) has published a Rule to provide details on how to benchmark to comply with Local Law 84 (LL84).
Read Local Law 84 Final Benchmarking Rule (in PDF)

Benchmarking Tool - Portfolio Manager

Portfolio Manager is a free online benchmarking tool that tracks and assesses energy and water consumption in buildings. Developed by the U.S. Environmental Protection Agency's (EPA) ENERGY STAR program, Portfolio Manager can help building owners identify opportunities to make their buildings more energy and water efficient and save money. Portfolio Manager is required for building owners to benchmark their buildings.
Portfolio Manager was upgraded with new and improved functionalities. Review the numerous EPA guidance documents about the upgraded tool at

Other LL84 Benchmarking Links

LL84 Home
Covered Buildings List (Buildings Required to Benchmark)
How to Comply 
Energy and Water Data Collection 
Where to Get Help 
Benchmarking Data Disclosure and Reports
Outreach and Training  


Quick Links