Green Roofs

Green roof at Rhode Island Row – 2300 Washington Place, NE  WDC.

Green roofs play an essential role in protecting, preserving and restoring our watershed. Covered with soil media and plants, green roofs provide tremendous benefits for our communities, neighborhoods and individual property owners. Every municipality in the watershed is encouraging green roofs and AWS is here to help you learn more and get them installed. 

Green Roofs Benefits

  • Improved stormwater management for buildings – through retention and purification
  • Reductions to the heat island effect
  • Increased health - for people, plants and animals
  • Energy conservation and noise reduction year-round
  • Reduced demand on the municipal sewer systems and potential reductions in fees
  • Extension of roof life
  • Reductions in air pollution and greenhouse gas emissions

Green Roof at 130 M St. NE

Green Roof Tools

Case Studies

Click here (PDF) to learn about our 2009-2011 green roof projects with the World Wildlife Fund, American Chemical Society, Capitol Plaza One and American University.

Click here (PDF) to see a variety of roofs funded in 2011-2012. Projects include Sibley Memorial Hospital and a variety of residential and commercial green roofs throughout the District.

Click here (PDF) to see information on five of the most recent green roofs we’ve helped fund in 2012-2013. Projects include Rhode Island Row, Catholic University’s Aquinas Hall, a residential green roof, the French Embassy and Canal Park.

Apply for the District of Columbia's 2014-2015 RiverSmart Rooftops Program

We are currently accepting applications for the District Department of the Environment's RiverSmart Rooftops program which provides rebates for the installation of green roofs within the District of Columbia. Rebates of up to $15/square foot are available to eligible projects based on roof size and property location.

To be eligible for this new rebate amount, projects must register after November 1, 2014. Rebates are available for new green roofs on existing buildings of any size. 

Interactive Targeted Subwatershed Map

View 2013-2014 District Green Roof Rebate Program - Targeted Sub-waterhsheds Map in a larger map

DDOE RiverSmart Rewards and Clean Rivers IAC Incentive Programs

Additional information about the District Department of the Environment’s (DDOE’s) Green Roof Rebate Program is available at DDOE’s Green Roof Website.

Green Roof on Residential Garage in SE DC

The District of Columbia’s 2013-2014 Green Roof Program is administered by the Anacostia Watershed Society for DDOE with funds from the Anacostia River Cleanup and Protection Act of 2009 (“DC Bag Law”) and the Stormwater Enterprise Fund.

Montgomery County

Property owners in Montgomery County can receive technical assistance and funding for Green Roofs and other Landscape Improvements through the Rainscapes Program. AWS is also available to help. Learn More

Prince George’s County

Prince George's County Council unanimously passed bill (CB-45-13) that established a Clean Water Act Fee in 2013 to fund projects that reduce polluted water run-off.  
Stormwater is one of the county's biggest challenges as it causes flooding, property damage and polluted streams. For more information about support for Green Roofs and other LID practices through their RainCheck Program, click here.

If you have questions please contact us by calling 301-699-6204 ext.114 or via e-mail at





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