One World Trade Center (Freedom Tower): Key Facts and Figures

Officially named One World Trade Center—often called the Freedom Tower—this supertall skyscraper anchors the rebuilt World Trade Center complex in Lower Manhattan, New York City.

Quick Stats

• Height (architectural): 1,776 ft (541.3 m) — symbolic reference to 1776, US Declaration of Independence year
• Roof height: 1,368 ft (417 m)
• Floors: 104 (94 above ground, 5 basement, 5 mechanical)
• Observatory: One World Observatory, floors 100–102
• Construction: 2006–2014; opened November 3, 2014
• Cost: ~$3.9 billion
• Architect: David Childs (Skidmore, Owings & Merrill)
• Developer: Port Authority of NY & NJ; Durst Organization

Design & Safety Innovations

• Reinforced concrete core (3 ft thick) housing stairwells, elevators, utilities
• Blast-resistant glass and curtain wall
• Dedicated firefighter stairwell and emergency communication systems
• Sustainable features: LEED Gold certification, rainwater harvesting, daylighting

Major Tenants

• Condé Nast (floors 20–44)
• Port Authority of NY & NJ
• Durst Organization
• Various government and private firms

Memorial Context

The tower stands adjacent to the National September 11 Memorial & Museum, where twin reflecting pools mark the footprints of the original Twin Towers. The complex honors the 2,977 victims of the 9/11 attacks and the six killed in the 1993 bombing.