Environmental
Sustainability

As a leader in commercial real estate, we’re committed to implementing best practices.

We operate at the highest efficiency standards to strengthen our community’s resiliency while maintaining our responsibility to our shareholders.

Our Approach

SL Green developed a six-pronged strategy to sustainability, ensuring that the portfolio is resilient, responsible, and reliable. This approach is integrated through the life cycle of all properties, spanning the acquisition, planning, design, construction, and operational phases.

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Reduce Energy Consumption

Stabilizing portfolio-wide carbon footprint.
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Facility
Management

Standardizing green policies and procedures across all properties.
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Green Building Designations

Pursuing third-party verification across 100% of the portfolio.
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Tenant
Engagement

Educating tenants through webinars, town hall meetings, and lobby events.
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Science-Based Emissions Targets

Analyzing energy consumption in a global context.
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Renewable
Energy

Procuring energy from renewable resources.
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Carbon Strategy


SL Greenʼs commitment to creating a greener footprint begins with reducing emissions across its properties. Collaboration with tenants, employees, and other stakeholders is critical in realizing these goals by setting targets and implementing effective management strategies.

To further verify its sustainability performance, SL Green participates in a wide variety of external reporting programs such as the Global Reporting Initiative (GRI), CDP, LEED, ENERGY STAR, and the NYC Mayorʼs Carbon Challenge.

NYC Mayor’s Carbon Challenge

To contribute to reducing citywide greenhouse gas (GHG) emissions 80% by 2050, SL Green is participating with 8 buildings and their combined 8 million square feet. We pledge to reduce GHG emissions by 30% over 10 years with commitments from our tenants.

Carbon Disclosure Project

In 2018, SL Green became one of the first owners in New York City to participate in the CDP Climate Change survey. The CDP response is a public commitment to carbon and risk management transparency, and to ensure that emissions reductions are embedded in company operations, a 30% intensity reduction goal was established for 2025.

LEED Strategy


SL Green has a long history of leading the pursuit of green building designations, with LEED at the core of its strategy. Dating back to 2009, SL Green was among the first owners to adopt LEED for Existing Buildings (EB) in New York City at 100 Park Avenue. When the new version 4 standard was introduced in 2016, 485 Lexington was one of the first buildings in the nation to achieve LEED EB. SL Green earned LEED certifications spanning 20 million square feet historically, and its current portfolio holds certifications across 17 million square feet.

17 million

LEED certified square footage in SL Green portfolio
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US Green Building Council Award - Green Certified
1 property
US Green Building Council Award - Silver
5 properties
US Green Building Council Award - Gold
16 properties
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Energy Star


ENERGY STAR is foundational to SL Greenʼs energy management program. It is a measurement and verification tool that enhances the quality, competitiveness, and resiliency of the commercial portfolio. ENERGY STAR scores serve as the catalyst SL Green uses to motivate its building operators, property managers, and tenants to pursue capital efficiency projects and implement change. SL Green achieved ENERGY STAR labels across 15 million square feet, representing 9% of all of Manhattan’s labels.

In recognition of its operational excellence, the U.S. Environmental Protection Agency (EPA) awarded SL Green the prestigious “Partner of the Year – Sustained Excellence” award in 2018 and 2019.

1 Percent

Percentage of 16,000 EPA partners to achieve Partner of the Year

Efficiency Strategy

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Occupancy Sensors

By providing foot-traffic analytics, occupancy sensors allow building engineers to adjust space conditions to maximize efficiency and tenant comfort.
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Energy Desk

A real-time energy management platform equips SL Green engineering staff to respond to needs as they arise and communicate with the grid, our tenants, and ConEd.
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11 Madison, Ice Plant

Producing ice at night and using it for daytime cooling, reduces electricity use, energy costs and strain on the electrical grid.

Occupancy Sensors

By providing foot-traffic analytics, occupancy sensors allow building engineers to adjust space conditions to maximize efficiency and tenant comfort.

ENERGY DESK

A real-time energy management platform equips SL Green engineering staff to respond to needs as they arise and communicate with the grid, our tenants, and ConEd.

11 Madison, Ice Plant

Producing ice at night and using it for daytime cooling, reduces electricity use, energy costs and strain on the electrical grid.

Resource Management


Sustainability goals are achieved when landlords and tenants have shared accountability and a commitment to corporate responsibility. SL Green works to make sure mindful management of resources is part of the equation.

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Water

Conservation is a key priority for SL Green’s green building operations. Low-flow fixtures for toilets, urinals, and faucets in bathrooms across the portfolio have been installed to optimize SL Green’s water-saving efforts. Additionally, building operators implement an extensive leak-detection program to ensure systems are operating correctly and efficiently, and water consumption is tracked and reported on an annual basis.

SL Green will be piloting the latest water conservation technology at its ground up development One Vanderbilt, where a 90,000-gallon reclamation system will collect and recycle rainwater to cool the building.

Waste

SL Green’s team has focused on operational efficiencies and educational strategies to drive behavior change and optimize recycling rates across its portfolio. Every year, SL Green’s cleaning staff and tenants are receiving training on proper recycling procedures. To evaluate the effectiveness of the program, recycling data is collected monthly and waste audits are conducted annually.

In alignment with the LEED standard, SL Green’s waste goal is to achieve a 50% recycling rate across its portfolio by 2025.