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The Treehouse & Sustainability

We Lead in LEED


MetroNational is silver member of the U.S. Green Building Council (USGBC). USGBC is best known for its development of the Leadership in Energy and Environmental Design (LEED) green building rating systems. We have received LEED Platinum, Gold and Silver Certified—for Building Design + Construction: Core and Shell for the following projects: 

  • The Treehouse Memorial City, Double LEED Platinum (Core and Shell and Interiors)
  • Nexen Tower – LEED Silver
    • MetroNational Corporate Offices – LEED Gold (Interiors)
  • Cobalt Center – LEED Silver
  • Murphy Building – LEED Gold
  • Air Liquide Center:
    • 9811 Katy Freeway – LEED Gold
    • 9807 Katy Freeway – LEED Silver
  • One Memorial City Plaza – LEED Gold
  • Three Memorial City Plaza – LEED Silver
  • 10100 Katy Freeway – LEED Silver
  • Hotel ZaZa Memorial City – Tracking LEED-Certified 

The Treehouse Memorial City

The Treehouse Memorial City opened in the summer of 2014. True to its name, The Treehouse brings outdoor elements indoors, while combining modern design and green building principles. According to the U.S. Green Building Council (USGBC), The Treehouse Memorial City is the highest-rated LEED building in Texas and the second highest in North America. The project, which received double-LEED Platinum certification for both Core and Shell and Interiors, features geothermal heating and cooling, daylight harvesting for lighting adjustments, solar panels, rainwater collection for landscaping, and a rooftop garden.


For more than 10 years, MetroNational has tracked the EPA Energy Star scores in its office buildings. In the past year, the company averaged an Energy Star score of 85 across the major office buildings. That means that MetroNational’s buildings perform more efficiently than at least 85% of similar buildings nationwide.