Nearly 80 percent of our citywide emissions are attributed to buildings’ energy use. Many new sustainable technologies have recently come to the marketplace that help offset these emissions, increase a building’s efficiency, decrease energy dependence, and reduce costs for homeowners. Here you will find resources that review these technologies, describe the benefits they offer, and explain how they can be used within New York City.

NOTE: The effective date for the 2016 NYC Energy Conservation Code was October 3rd, 2016.

UPDATE: Greenhouse Gas Emission Reporting

Local Law 97 of 2019, passed by the City Council as part of Mayor Bill de Blasio’s Green New Deal, is an unprecedented commitment to increase the sustainability of buildings, the single-largest source of greenhouse gas (GHG) emissions in New York City. The law became effective on November 15, 2019.

Local Law 97 will further the goal of achieving a 40 percent reduction in aggregate greenhouse gas emissions from covered buildings by calendar year 2030 and an 80 percent reduction in citywide emissions by calendar year 2050.

Covered Buildings List

This Covered Buildings List contains properties that may be subject to Local Law 97 of 2019 under Article 28-320 or Article 28-321. We strongly encourage building owners to work with a registered design professional (RDP) to confirm whether your building is subject to the law.

2022 LL97 CBL (pdf)
2022 LL97 CBL (Excel)

If you believe your property is erroneously listed on this Covered Buildings List, contact DOF at to dispute any of the following: square footage of the building, number of buildings on a tax lot, ownership, address or mailing information. Please include the following in the email:

  • borough, block, and lot number of the building
  • contact information: name, email address or/and telephone number
  • reason for dispute

Get additional information on Greenhouse Gas Emission Reporting.

Please visit our website regularly for updated information. For additional information, on the Department of Buildings’ sustainability efforts, visit our Energy Code page.

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