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Local Law 87 New York


The New York City Greener, Greater Buildings legislation, effective September 2012, imposes ongoing requirements for all building owners in New York City, both commercial and residential, with a focus on buildings that are more than 50,000 square feet in gross area. Requirements for Energy Audits and Retro-Commissioning (Local Law 87 New York) are now in effect with fines and violations issued to covered buildings that fail to file their annual reports.

Local Law 87 New York (LL87) mandates that buildings over 50,000 gross square feet undergo periodic energy audit and retro-commissioning measures, as part of the Greener, Greater Buildings Plan (GGBP). The intent of this law is to inform building owners of their energy consumption through energy audits, which are surveys and analyses of energy use, and retro-commissioning, the process of ensuring correct equipment installation and performance.

Energy audits and retro-commissioning will give building owners a much more robust understanding of their buildings’ performance, eventually shifting the market towards increasingly efficient, high-performing buildings.

In summary, LL87’s energy audit and retro-commissioning process requires the following:
Determine if a building needs to comply, and what year it is due.
Conduct an energy audit and retro-commissioning of base building systems and complete an Energy Efficiency Report (EER) electronically.

Submit the EER once every ten years to the City by December 31.
Under Local Law 87 all buildings within New York City that are older than 10 years since the age of construction and encompass more than 50,000 square feet of space whether they are commercial, industrial or residential will be included in the Department of Buildings’ covered buildings list and are in need of both an Energy Efficiency Audit and a Retro-Commissioning Process.


In order to comply with Local Law 87 New York, owners of covered buildings as designated by the Covered Buildings List must submit their Energy Efficiency Reports (EER) to the City before the LL87 deadline of December 31 of the year in which the building is due.

Please note that all covered buildings with a “7” as the last digit of their tax block number must comply by December 31, 2017 to meet compliance before the LL87 deadline.

Click here to determine if your building is due for LL87 compliance this year.


An individual performing or supervising work necessary to conduct the energy audit and retro-commissioning must be:

  • a registered architect or licensed professional engineer in New York State with appropriate audit or retro-commissioning qualifications, or
  • a DOB registered energy auditor or retro-commissioning agent with approved training

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