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Green features | 600 Massachusetts avenue

roof deck

600 Mass will be an exemplary icon of sustainability in the Washington, DC region. The integrated design for this high-performance building has earned the project a LEED Platinum rating with the U.S. Green Building Council.

This is an address that delivers on high-performance promises from strategies we’ve tested on other building projects. 600 Mass will incorporate the following strategies:

  • The integrated design of the building envelope and mechanical system ensures that the project will be energy efficient.
  • Water-efficient landscaping and technologies will minimize water use in the building, and substantially reduce water discharge from the building.
  • A comprehensive recycling and waste management program will reduce landfill waste.
  • Clean, filtered air — delivered to every floor — will provide the highest indoor air quality.
  • By sourcing building materials and hiring a local construction team, we will reduce carbon emissions related to both transportation and ongoing energy consumption.
  • Our central urban location will offer alternative and convenient commuting options.


leed platinum
The project team behind 600 Mass has reached its goal of receiving LEED Platinum Certification. This rating signifies the highest level of sustainable achievement by addressing a wide spectrum of issues pertaining to the site and landscape, water use, energy use, materials and indoor environmental quality. This certification considers sustainable sites, water efficiency, energy and atmosphere, materials and resources, indoor environmental quality, innovation in design and regional priority. Features, including the ability to capture and reuse 100% of rainwater, mean that this will be a high-performance building geared towards efficiency — with a focus on long-term savings for the tenant.

Going above and beyond the standards of LEED Platinum Certification are what sets this building apart and places it in the upper echelon of the environmentally concerned. 600 Mass broadcasts to your clients that you are a conscientious and cutting-edge organization.