151 West 42nd Street


One Five One (151 West 42nd Street), widely regarded as the first green skyscraper in the United States, was the first project of its size to adopt standards for energy efficiency, indoor air quality, tenant comfort, sustainable materials, and responsible construction. When completed in 1999, One Five One set the standard for the green building paradigm and has since been LEED Gold certified under LEED v4 Existing Buildings: Operations + Maintenance.

This innovative building’s sustainability features include:

  • Energy-efficient lighting
  • Waste chutes for paper recycling
  • Natural gas–powered absorption chillers/heaters
  • High-performance windows
  • Fuel cells
  • Clean-air delivery system
  • Demand Controlled Ventilation
  • Building Automation and Temperature Control System
  • Indoor climate–regulating curtain wall
  • Integrated photovoltaic (PV) panels at the top of the building

Other perspectives:

To learn more about 151 West 42nd Street's landmark green features, click on the following links to a variety of third-party views.

"The Proof Is Performance: How Does 4 Times Square Measure Up?" High Performing Buildings, Winter 2008

"A High-Performance Building at 4 Times Square," a case study published by Trane

"One of Midtown Manhattan’s Newest Skyscrapers Is One of Its Greenest," a brief case study published by the New York State Energy Research and Development Authority