New York City and State will implement their new Energy Codes on October 3, 2016. New York State Energy Conservation Code (NYSECC) is based on the International Energy Conservation Code and ASHRAE 90.1-2013. The New York City Energy Conservation Code (NYCECC) is the adopted version of Local Law 91. Applications filed after October 3, 2016 will be subject to the 2016 NYCECC.
The new code requires many New York residential buildings to increase their air tightness. The new Energy Code requires 3 air changes / hour rate (down from 7 of the 2014 Energy Code). Urban Green has put together an excellent video demonstrating the new requirements for air tightness.
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Select areas in Brooklyn may now be permitted to create lawful cellar apartments.