One World Trade Center

Thanks to a host of sustainable elements and state of the art green systems, 1 World Trade Center promises to rank among both the largest and greenest buildings in the world, as well as one of the safest.

The patriotic cache of 1 World Trade Center is evident from its address, as well as its original Freedom Tower title. But while 1 One World Trade Center’s height both makes and references history — at a symbolic 1,776 feet in height and a towering 102 stories, it will be the tallest building in the city — 1 World Trade Center is also an eye-opening exemplar of green design.

With 69 floors of class-A office space, 1 World Trade Center will devote 2.6 million square feet to class-A office space, although a showcase lobby with soaring 80-foot ceilings, television broadcast floors, an observation deck and several restaurants are also part of Skidmore, Owings and Merrill’s design. But while 1 World Trade Center will rival the original World Trade Center in versatility and far surpass it in aesthetics thanks to its fluid, tapering glass-draped look, 1 World Trade Center will also stand out for its stellar sustainable elements. The Freedom Tower’s green aspects encompass both the expected top-of-the-line sustainable technologies — energy-efficient windows, recycled construction materials, interior daylighting and assorted other state of the art building management systems — to such unexpected and uncommon green design elements as the reuse of rainwater.

1 World Trade Center’s symbolic importance is not lost on any New Yorker and its airy, efficient, and ideally located 2.6 million square feet of class-A office space will make an instant impression on the Financial District. But it’s 1 World Trade Center’s stunning combination of ultra-modern design and super-sustainable efficiency that makes it a truly towering achievement.

Washington St, New York, New York  
World Trade Center 
LEED for New Construction Version 2.2, Gold (Registered) 
Port Authority of New York & New Jersey; The Durst Organization 
Skidmore, Owings & Merrill 
Year Built
2013 (under construction) 
Square Footage
3 million square feet 
Iconic new commercial office building will be tallest in New York City upon completion in 2013 


  • 4.8 -Million-Watt/Hour Fuel Cell Installation
  • Automatic Interior Office Dimming
  • CO2 Monitors Linked to Air Handling Software
  • Efficient Building Systems
  • FSC-certified wood products
  • Locally Sourced Landscaping
  • Natural Daylighting
  • Recycled Rainwater
  • Recycled-content building materials
  • Waste Steam Recycling