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One Madison Building


Building a better future.

Sustainability is a central concern at SL Green. We make a conscious effort to improve New York City by minimizing our carbon footprint through emissions reductions, resource conservation, and operational excellence. We are continually working to upgrade our portfolio, improving the sustainability of all our buildings both in building operations and performance as well as in the materials and methods we use in construction and renovation.

01 Quote

We are committed to differentiating abstract objectives from tangible solutions. At SL Green, we measure everything – being able to quantify our portfolio’s environmental impact is essential in understanding how it correlates with our organizational objectives and in our role as New York City’s largest commercial owner.

Marc Holliday, Chairman & CEO, SL Green

02 Experience

Sustainable design creates a better work environment.

Tower Exterior 1
03 Certifications
LEED Certification logo

LEED Certification

SL Green own 17M square feet of LEED Certified Space, of which One Madison represents about 10%. LEED (Leadership in Energy and Environmental Design) is among the most esteemed and pervasive green building certification programs in the world.
Energy Star logo

Energy Star

The SL Green portfolio represents about 9% of all ENERGY STAR labels. ENERGY STAR is a measurement and verification tool administered by the U.S. Environmental Protection Agency (EPA) that promotes energy efficiency across buildings nationwide.
BOMA 360 logo

BOMA 360

SL Green currently holds 23 “BOMA 360” designations. This program holistically evaluates all major areas of building facility management, including operations, safety, training, energy, sustainability, and tenant relations.

04 Impact

Designed with the future in mind.

One Madison has been created with a clear focus on design elements that will improve tenant quality of life, the building’s operational efficiency and reduce its environmental impact.
Energy Conservation icon: two leaves with arrows rotating around them

Conserve Energy

High efficiency mechanical systems to conserve energy and perform at the highest standard.
Sustainability Performance icon: a lightening bolt inside of a star

Sustainability Performance

Environmental goals integrated in design, construction and planning decision-making.
Biodiversity icon: trees


Utilization of indigenous plant species to benefit local biodiversity.
Wellness and Productivity icon: a meter with a high ranking

Wellness and Productivity

Biophilic design elements that enhance occupant wellness and productivity.
Proximity to Nature icon: trees on rolling hills

Proximity to Nature

Direct access to Madison Square Park.
Transportation icon: a subway train


Unparalleled proximity to public transportation.
Garden Floors icon: a park bench next to a tree

Garden Floors

More than 1 acre of outdoor spaces that mitigate heat island effect and regulate storm water runoff.

Community Impact icon: people

Community Impact

Engaged government officials, community members, and local businesses on development plans to ensure positive community impacts are maximized.

Efficiency icon: three towers of blocks


High performance curtain wall that optimizes heating and cooling efficiency.

Column-free Floor Plates icon: two floor plates

Column-free Floor Plates

Maximize daylight entering tenant spaces in new tower.
100 Walk Score icon: an outline of footprints with a circle around them, with 100 notated above

100 Walk Score®

Achieved the highest possible Walk Score® of 100.
Urban Infill icon: a construction roadblock

Urban Infill

Construction that avoids sprawl and green field development.