Trellis House Awarded LEED Platinum Certification

Developed by RISE: A Real Estate Co. and Gateway Investment Partners, Trellis House is the first LEED for Homes Multifamily Midrise project to be awarded LEED Platinum Certification in the cutting-edge Washington D.C. market. The LEED (Leadership in Energy and Environmental Design) rating system, developed by the U.S. Green Building Council (USGBC), is the foremost program for buildings, homes and communities that are designed, constructed, maintained and operated for improved environmental and human health performance.


Trellis House a high-end urban oasis in the heart of Washington D.C.’s North Shaw Neighborhood. Comprised of 319 residential units, this property provides a sanctuary from busy city life with amenities like a rooftop hydroponic garden, collaborative workspaces with private offices, an on-site pet spa, and a luxury private pool with outdoor fireplaces and lounge spaces.


Trellis House achieved LEED Platinum certification by implementing the highest level of practical and measurable strategies and solutions aimed at achieving high performance in: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.

“Achieving LEED certification is more than implementing sustainable practices. It represents a commitment to making the world a better place and influencing others to do better,” said Mahesh Ramanujam, president and CEO, USGBC. "Given the extraordinary importance of climate protection and the central role of the building industry in that effort, RISE and Niles Bolton Associates demonstrate their leadership through their LEED Platinum certification of Trellis House.”


This certification can be attributed to the green-minded development and design features, which include:

- Green roof of  over 29,000 sq. feet.
- Indoor hydroponic garden
- Advanced bioretention features utilizing courtyard planters
- Efficient residential unit sizes
- Native, non-invasive, drought-tolerant landscape materials
- Voluntary Remediation Action Program for on-site clean up
- Very high-efficiency plumbing fixtures and fittings (surpassing building code standards by 30%)
- Environmentally preferable product choices (low-emitting, locally sourced, high recycle content)
- Radon mitigation measures preventing soil gas accumulation within the building
- Enhanced fresh air ventilation providing residents highly-filtered fresh air
- Building policy preventing smoking on site

Niles Bolton Associates continues to be a leader in sustainable architectural design. Our technical staff, two-thirds of whom are LEED certified professionals, are focused on developing achievable sustainable strategies that can be realistically implemented. As a firm, NBA is committed to ensuring sustainability is considered on all of our projects. It’s part of our design culture. Our goal is to develop a balanced strategy that achieves overall sustainable goals and meets project budgets. The team brings together active members of the United States Green Building Council (USGBC), the Urban Land Institute (ULI), AIA’s Committee on the Environment (COTE) and AIA’s Building Enclosure Council (BEC). To date, NBA has designed over 10 million sustainable square feet (LEED, Earthcraft, SPiRiT, EnergyStar).  

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