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One World Observatory (OWO) achieved LEED Platinum for Commercial Interiors, the highest level of Leadership in Energy and Environmental Design (LEED) certification possible from the US Green Building Council (USGBC). LEED is the most prestigious and recognized green building certification system in the world.

One World Observatory continually strives to reduce its environmental impact for a cleaner, healthier future, while providing the best experience to our partners, employees, and guests. From the very beginning we have focused on doing what we can to shrink our carbon footprint, everything from the type of construction materials to the everyday supplies used in our employee break rooms. Our commitment to an environmentally-friendly approach disseminates to each and every person who visits One World Observatory, and we encourage everyone to do their part and engage in sustainable practices.

In doing what we can for the environment, One World Observatory achieves Leadership in Energy and Environmental Design (LEED) is proud to be a LEED Platinum certified venue!

Site Location

  • Located in a building that committed to meet LEED Gold Core & Shell v2.0 which
    ensured significant sustainability benefits to the tenants and reduced its impact on the environment.
  • Reduced the need for individual transportation traveling to and from the site with a location within easy reach of an extensive network of public transit options.
  • Located in a densely developed area, further promoting the reduction of CO2 emissions since a variety of amenities and services are located within walking distance.

Water Efficiency

  • Installed highly efficient water fixtures, even replacing lavatory amenities on the C1 level that were provided by the landlord.
  • Estimated savings of 270,000 gallons of water per year with high efficiency faucets, and 1 million gallons of water per year with high efficiency flush fixtures.


  • Pursued both Fundamental and Enhanced Commissioning which entails a very detailed review and
    stringent series of testing protocols that ensure quality control and efficiency of the project’s energy
    systems from design through construction and results in improved energy performance and operations.
  • The installation of efficient lighting design includes large windows that ensure significant amounts of natural light into the space.
  • State-of-the-art daylight control automatically adjusts and reduces the need for electrical lighting by turning off fixtures when natural light is sufficient.
  • High efficiency heating, ventilation, and air conditioning (HVAC) units meet efficiency requirements, reducing greenhouse gas emissions while maintaining comfort.
  • Energy Star-rated audio-visual equipment sought out and utilized whenever possible.

Materials and Resources

  • One-third of all materials used in the initial construction of OWO came from local and regional sources, reducing the amount of transportation energy used while supporting the local economy.
  • Over 25% of materials used contained recycled content.
  • All banquettes in the restaurant are made from 100% Forest Stewardship Council (FSC) certified wood, meaning it was sourced from a sustainably managed forest and tracked from harvesting, through the manufacturing process, to installation on site.
  • 92% of construction waste was recycled.
  • The concrete used was regionally sourced with high recycled content.

Indoor Air Quality

  • Currently provide 30% more outside air than required.
  • Utilize high efficiency air filters to remove 85% of contaminants.
  • Elimination of materials that would “off-gas” pollutants within the building, utilizing low-emitting paints, coatings, adhesives, etc.

Design and Regional Priority

  • Achieved every available credit under Innovation in Design with three exemplary performance credits plus Green Cleaning and a Green Building Education Program.
  • Met the requirements for five regional priority (RP) credits including Brownfield Redevelopment, Stormwater Management – Quantity, Water Use Reduction – 40%, Thermal Design and Controllability of Systems – Lighting, but we were only able to achieve a maximum of four credits as established by the USGBC.