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About the 2014 New York City Energy Conservation Code

The New York City Energy Conservation Code (NYCECC) is comprised of New York City local laws and the current Energy Conservation Construction Code of New York State (ECCCNYS). By State law, all local government energy codes, including the NYCECC, must be more stringent than the ECCCNYS.


The 2014 NYCECC applies to completed job applications filed on or after January 1, 2015. All completed job applications filed on or before December 31, 2014 can continue review under the 2011 NYCECC.

Application Types Not Regulated by the Energy Code

Full demolition, sign and subdivision applications are not required to comply with the NYCECC. However, sign applications that affect a building’s envelope must be accompanied by an alteration application for the envelope work, which must comply with the NYCECC.

Key Definitions

Certain key definitions are provided here for ease of use.


Under Article 11 of the New York State Energy Law, only the Secretary of State has the authority to provide waivers from Energy Code compliance, not the local jurisdiction. Contact the Codes Division of the Department of State for an application for variance at (518) 474-4073 or by email at

Information for Homeowners

The Energy Code May Affect New Home Construction or Home Alterations

Since 1979, new construction and major alterations have been required to comply with the State Energy Code. In July of 2010, New York City initiated its own New York City Energy Conservation Code (NYCECC), applicable to all alterations. For homeowners, this means that when you add an addition to your home or renovate it, you will have to comply with the NYCECC and your home will be more energy-efficient.

Whether you are building a new home or adding onto or renovating your current home, your architect or engineer may advise you that certain additional requirements must be incorporated into your plans in order to be in compliance with the NYCECC. You can always verify the status of your application and what requirements need to be met before construction begins, by visiting our website at and using the Building Information System search tool on the homepage.

Complying with the NYCECC

The purpose of the NYCECC to:

  • Make sure buildings are properly sealed by providing a tight and insulated envelope (roof, walls, windows, foundation) to keep heating and cooling inside the building while still providing fresh outside air;
  • Illuminate buildings' interiors using efficient lighting and as much daylight as possible to accomplish this; and
  • Heat and cool buildings using as much recycled energy as possible to reduce buildings' power consumption, i.e. using furnaces and air conditioning units that are sized appropriately for the size of your home.

When creating plans for your home, in order to comply with the NYCECC your architect and/or engineer must meet certain values for the insulation, windows, heating system, ventilation system, air conditioning, hot water equipment, lighting and the power system.

Information About Forms

To demonstrate compliance with the NYCECC, all New Building and Alteration Type-1, -2 and -3 applications require the following:

Professional Statement (mandatory for all);
Energy Analysis (mandatory unless the application is exempt); and
Supporting Documentation (mandatory unless the application is exempt or compliance is not required - see Energy Analysis).

Software for Energy Analysis

REScheck, COMcheck and DOE2-based software can be used to conduct the energy analysis and are available for free on the US Department of Energy’s website and may be used as follows:

  • REScheck: The full report shall be provided, including the building envelope, HVAC/service water heating and checklists. The New York State version must be used. The IECC version of REScheck is not acceptable
  • COMcheck: Depending on whether you use NYCECC or ASHRAE Standard 90.1/2010 for compliance, the respective version of COMcheck should be used. Use the 2012 IECC version for ECC compliance and the ASHRAE 90.1/2010 version for compliance with that standard. COMcheck has not yet been updated to reflect some specific NYC code requirements affecting lighting and HVAC, however, the design must reflect the actual NYC requirements.
  • DOE2: For more complex energy modeling, including where trade-offs among disciplines or renewable energy sources are used, a DOE2-based software should be used. This software is available at Such software, including updates, may include DOE2.1E, VisualDOE, EnergyPlus or eQuest. Other energy modeling programs must be approved by the Secretary of State of New York and the Buildings Commissioner prior to submission.

Required Documents to Construction Sign-Off

The documents that are necessary to ensure all work is in compliance with the NYCECC can be found here.

Progress Inspections

Information regarding Energy Code Progress Inspections can be found here.

Related Regulations

1 RCNY §5000-01 - Energy Code Compliance Rule, Including Progress Inspections
1 RCNY §101-07(c)(3) – Approved Agencies Rule – Progress Inspectors
2010-031 – HVAC/Service Hot Water Buildings Bulletin
2010-032 – Lighting/Power Buildings Bulletin
2011-015 – Envelope Buildings Bulletin


If you have any additional questions about the NYCECC, please email the Department at Also, see the Energy Code FAQs page for more information.

Helpful Links

U.S. Department of Energy
U.S. Department of Energy - Training/Education
NYS Department of State Energy Code
NYS Energy Research and Development Authority (NYSERDA)
ASHRAE Standard on Commissioning
US Department of Interior - Office of Historic Preservation
New York State - Office of Historic Preservation
International Code Council