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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 fundraiser of the year and connect with the global sustainability community at the Urban Green Gala!

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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

What’s New in the NYS Energy Code [FULL]

September 30, 2026

Join this free 90-minute live training for a clear, practical overview of the latest updates in the 2025 NYS Energy Code.

What’s New in the NYS Energy Code

October 7, 2026

Join this free 90-minute live training for a clear, practical overview of the latest updates in the 2025 NYS Energy Code.

View Calendar

Recent publications

Year One Local Law 97 Results: Four key takeaways

In a major win for building decarbonization, 95 percent of covered buildings have filed LL97 reports and of those that filed we're seeing 95 percent compliance.

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NYC’s Grid in Transition

A historic boost in hydropower and offshore wind will transform NYC’s grid by 2028, as headwinds reshape the pathway to our long-term goals.

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Highlights of the 2025 New York City Energy Code

NYC adopted a new Energy Conservation Code in December 2025. Here’s what you need to know.

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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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Explore the resource library

Videos and podcasts

Financing energy upgrades with NYC C-PACE

September 30, 2026

How do you move from a feasibility study to a fully financed retrofit?

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People Positive: The social impacts of climate work

September 9, 2026

In this episode of Building Tomorrow, we speak with author Gayathri Unnikrishnan about her new book, People Positive.

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Building toward 2030 with Laura Popa

July 15, 2026

Hear about Local Law 97 compliance updates from Laura Popa, the Deputy Commissioner for Sustainability at NYC DOB.

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All videos and podcasts