Local Law 87:

Energy Audits &


Local Law 87 (LL87) requires buildings larger than 50,000 square feet, or two or more buildings that together exceed 100,000 square feet and share a tax lot, to submit an Energy Efficiency Report (EER) and Retro commissioning report (RCx) every 10 years. The intent of these reports is to inform building owners of their energy consumption and ways to increase the building’s energy efficiency. A certified consultant should be hired at least a year in advance of your report deadline.

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What is an Energy Audit Report?

An ASHRAE Level II Energy Audit is a survey and analysis of energy use in a building with the purpose of identifying opportunities to reduce the amount of energy consumed without negatively affecting the operations. These audits have the goal of providing detailed building performance data, which will allow the building to target energy efficiency and emissions reduction measures.

What is Retro-Commissioning (RCx)?

Retro-commissioning is a systematic process for optimizing the energy efficiency of existing base building systems by identifying and correcting deficiencies in these systems. This includes, but is not limited to, repairs of defects, cleaning, adjustments of valves, sensors, controls or programmed settings, and/or changes in operational practices.

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When is my building due to comply with Local Law 87?

In order to comply with Local Law 87 (LL87), owners of covered buildings as designated by the Covered Buildings List must submit their Local Law 87 Report to the City by December 31 of the year they are due, once every ten years. For example, if the last digit to the tax block number ends in a 4, filing is required in 2014, 2024, 2034, etc.

Filing Fees

In addition to the LL87 Report, a filing fee must be paid to fully comply with LL87. Once the LL87 Report is received, DOB will email instructions on how to make a payment.







Registration and renewal fees are also required for DOB registered energy auditors and retro-commissioning agents (this does not include registered architects and licensed professional engineers). An individual registering as both an energy auditor and a retro-commissioning agent must submit fees for both designations.






The City is authorized to issue a violation for any listed building that has not filed an LL87 Report by December 31 of the year in which the LL87 Report is due. Failure to file by December 31 will result in a Class 2 violation and a penalty of $3,000 for the first year. Continued failure to file will result in additional violations on an annual basis of $5,000 for each subsequent year. The City will not accept outstanding LL87 Reports until penalties are paid in full.

HLZAE LL87 Services

HLZAE provides an in-depth energy analysis of the buildings systems and identifies all applicable energy conservation measures. During an energy audit, our energy professionals with the necessary energy auditing and retro commissioning credentials issued by the Association of Energy Engineers (AEE) detail the building’s energy usage while identifying the systems responsible for the usage such as lighting, heating, air conditioning, etc. We are a multi-disciple company that has extensive experience regarding architectural, structural, mechanical, electrical, plumbing, exterior, and window replacement/renovations. This allows for us to quickly produce the necessary reports and perform an accurate energy audit for your building.

Our offerings include:

  • Energy Audit
  • Retro-commissioning