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Building solutions for climate change

Our mission is to decarbonize buildings for healthy and resilient communities.

The Urban Green Gala

Support our largest fundraising event of the year and connect with NYC's sustainability community.

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Local Law 97

Local Law 97

NYC’s groundbreaking climate legislation sets carbon emissions caps for large buildings that began in 2024.

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Explore our NYC building data hub

Learn more about NYC's buildings and their energy use in this interactive data hub.

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We educate building professionals

We train people who design, construct and operate buildings locally and nationally.

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Building Tomorrow: Conversations with Climate Solvers

Building Tomorrow demystifies complex ideas about buildings, and introduces you to the people doing the work!

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Upcoming events

Crushing the Code NYC: Commercial Envelope

July 22, 2025

This 2-hour, online training prepares building and design professionals in NYC to comply with the commercial mechanical, hot water, and lighting requirements in the 2020 NYCECC.

Crushing the Code NYS: Commercial Building Systems

July 23, 2025

This 2.5-hour, online training prepares building and design professionals in NYS to comply with the commercial mechanical, hot water, and lighting requirements in the 2020 ECCCNYS.

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Recent publications

LL97 Action Steps

Use our data tool to receive cost-effective steps you can take today to improve your building, avoid fines and comply with LL97 in 2030. 

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The case for statewide benchmarking

A little-known dataset opens the door to smarter climate strategies for 22,000 large buildings in New York State.

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LL97 offsets and the Affordable Housing Reinvestment Fund

In a major win for NYC, building owners can now buy LL97 offsets that support electrification in the city’s affordable housing.

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The next step in benchmarking NYC buildings

A proposed bill would expand NYC’s annual energy and water benchmarking law to buildings larger than 10,000 square feet.

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Explore the resource library

Videos and podcasts

NYC Next: Facing down the future 

July 8, 2025

Read our recap of the Urban Green 2025 conference, NYC Next: Shaping Building Decarbonization!

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Keynote conversation w/ Rory Christian

July 3, 2025

Rory Christian, Chair and CEO of NYS Public Service Commission, discusses how NYC can achieve a just transition to sustainable energy.

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NYC Next: Shaping Building Decarbonization

June 11, 2025

Check out the recordings and photos from NYC Next: Shaping Building Decarbonization!

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All videos and podcasts