Sidwell Friends School

Washington, D.C., U.S.A.

Project Facts

  • Sidwell Friends is a K-12 private school located on a 15-acre site in historic Tenleytown, Washington, D.C.
  • Completed in 2007, Sidwell Friends School renovated and expanded its fifty-year-old, 33,000 square-foot middle school building. The new facility includes an eco-friendly courtyard, a green roof, and an additional 39,000 square-feet of classroom space. 
  • A wastewater management system cleans 3,000 gallons of water per day. After circulating through the landscape for three to five days, the water is re-used in the building’s toilets and cooling tower. 
  • On-site sewage treatment, water re-use, and water-efficient native plants reduce the school’s water consumption by 93 percent.
  • The middle school building is certified LEED Platinum.


  • Urban
  • University
  • Campus
  • Green Roof

Environmental Benefits

  • Circulates Water
  • Cleans Water
  • Creates Habitat for Wildlife
  • Ecologically Manages Storm Water
  • Reintroduces Native Plants
  • Re-Uses Waste