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get a rebate for a green roof to reduce polluted water in our rivers?


1. Learn about this resource. 

The RiverSmart Rooftops program is now closed. If you are an active participant in this program, you may still be eligible to complete your project. Please contact our grantee, DesignGreen at to ensure your project is completed.

Property owners can receive a rebate for installing a green roof at a residential building, commercial building, or community space in target areas in DC (blue on this map). Green roofs support plant growth and retain rainwater, reducing pollution from runoff. We—the DC Government—offer a rebate of $15 per square foot (up to the cost of your green roof). For example, if you install a 100 square foot green roof, you can get a $1,500 rebate.


For small property owners (buildings of 2,500 square feet or less), we also offer a rebate of up to $250 to help with the cost of having a structural engineer assess your property, which is required to make sure the installation is safe.


This program is called RiverSmart Rooftops and is offered by the Department of Energy & Environment, in partnership with Designgreen, a local small business.

2. Check if you are eligible.

You are eligible if all of these statements are true:

  • You own a residential building, commercial building, house of worship, or community space in DC.

  • Your property is in DC’s Municipal Separate Storm Sewer System (MS4) or Wards 7 or 8. Search your address on this map, and if it’s on a block in blue, your property is eligible for the program.

  • Your property does not already have a green roof installed.

  • If your building needs green infrastructure, like a green roof, to meet local stormwater management and green area ratio requirements, you plan to install green roofing outside of your regulatory requirements. If you’re not sure, apply anyway, and we’ll talk you through the requirements.


Properties of all sizes are eligible for this rebate. You don’t need to live in DC to apply, as long as the property you’re applying for is in DC.

This resource is provided by:

Keywords: install a green roof, prevent runoff, homeowners, renters, business owners, community-based organizations, religious institutions, green home, manage rainwater, sustainability, reduce pollution, polluted water, refund, discount, sustainability


This page was last updated May 2023.

Department of Energy and Environment
Rooftops Translations

Note: This program is no longer available.

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