Affected Buildings
Buildings over 25,000 sqft
Deadline
May 1st, 2025
Fines
Up to $2,000 /building
The Local Law 84 (LL84) by-law is designed to reduce emissions by requiring property owners to disclose their energy performance. The goal is to benchmark all buildings and take action on non efficient ones in the future.


Local Law 84 lays the groundwork by benchmarking building performance, while Local Law 97 enforces action by mandating emissions reductions. Together, they work toward NYC’s climate goals, including achieving carbon neutrality by 2050.
Local Law 84
Ground work to benchmark all buildings over 25k sqft, and set the CO2 threshold
Local Law 97
Using LL84 reports, the city can sanction retrofit actions for non efficient buildings