Key Achievements

SL Green is a proud industry leader in sustainability thanks to best-in-class operating performance.

We strive to maintain our position as a model of corporate citizenship, and our award-winning sustainability initiatives help minimize environmental impact, increase resiliency, engage with the local community, and create long-term value across our industry-leading portfolio.


We’ve garnered industry recognition for our market-leading achievements and workplace culture.

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Energy Star Partner of the Year – Sustained Excellence 2018–19

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Top-scoring US REIT on CDP Climate Change Survey


#1 Scoring Office REIT for ESG Disclosures on Bloomberg World Index


Top-3 Ranking in MSCI’s Environmental Category (Opportunities in Green Buildings)

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Great Place to Work 2019–20 Certification

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Outperformer on the Sustainalytics ESG Rating, as 38th of 328 Global Companies

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90th Percentile on Thomson Reuter’s ESG Score

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Included on the S&P 500 and S&P Global 1200 ESG Indexes

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Achieved GRESB Green Star Designation as a first time responder

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Recipient of NYC Office of Service Changemaker Award

By the Numbers

When we say we’re making a positive impact on the community, we mean it— and the numbers back us up.


Portfolio-wide emissions intensity reduction goal (by 2025).


Of suppliers engaged on sustainability policies during procurement.

Investment in energy efficiency, including HVAC, BMS, and lighting upgrades as well as variable frequency drive installations (since 2010).

Energy Star-certified square footage across portfolio.

Square footage participating in the WELL Portfolio program.

Investments in public transit improvements around Grand Central Terminal at our ground-up development, One Vanderbilt.


Manhattan Operating Properties achieved a Green Building designation.

Square feet connected to EnergyDesk, our real-time energy management platform.


LEED-Certified buildings among Manhattan operating properties.


GRI indicators disclosed in Content Index.

One Vanderbuilt

Case in Point

One Vanderbilt

Sustainable design in action. Wellness elements like natural light, quality air, and thermal comfort were integral components in the creation of this revolutionary new skyscraper, a Class-A office experience for tenants, visitors, and the local community. One Vanderbilt offers tenants not only the flexibility to adjust to the needs of a changing workforce, but superior building features and amenities including:

  • LEED Certification.
  • WELL Certification.
  • A 30,000-square foot amenity floor with healthy food offerings.
  • A conference center.
  • Indoor air quality that will surpass the ASHRAE 62.1 standard by 30%.
  • Quality water ensured by enhanced filtration.
  • 85% of tenant floor area with premier access to daylighting through floor-to-ceiling windows.
  • Movement, physical activity, and active living promoted through design strategies.
  • Maximum comfort ensured through HVAC system design and acoustical parameters.

All told, One Vanderbilt features $17 million in sustainability features that go above and beyond New York City code requirements and will have one of the smallest carbon footprints of buildings with similar density and scale in the city.


With 15 million LEED-certified square feet in its portfolio, SL Green has made a real impact on the environment. Our LEED volume efforts reduced energy consumption by 760,000 kilowatt-hours in 2018, equivalent to 560 metric tons of CO2 avoided per building or:

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120 cars being removed from the road.

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14,582 tree seedlings growing for 10 years.

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Powering 61 homes for a year.

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Saving 63,311 gallons of gasoline.

Six SL Green properties earned LEED Certifications last year by:

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Implementing LEED plans & policies in each building.

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Offsetting 16,675 megawatt-hours of electricity through wind power.

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Cutting average water consumption by one-third, saving 8 million gallons of water.

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Improving janitorial cleaning & paper product purchases meeting sustainability criteria to 76%.