Partnership Programs

Both the City of Seattle and King County are committed to supporting nature-based solutions and projects for a healthier future. Below is a list of programs to support projects on private and public properties throughout the city.

Two adults stand smiling next to a cistern.

RainWise Rebate Program

The RainWise Program provides rebates that cover most or all of the cost of installing cisterns and/or rain gardens on your property. To receive a rebate, you must be in an eligible combined sewer overflow (CSO) basin and work with a RainWise-trained contractor. 

RainWise Program
A garden bed with multiple sections of bushes, grasses, and rocks.

RainCity Partnerships

Seattle Public Utilities is excited to announce the new RainCity Partnerships program! Build community while treating more runoff from large businesses, apartments, and community hubs.

RainCity Partnerships
Two young adults walk down a sidewalk next to a rain garden.

GSI Mini Grants

 Green Stormwater Infrastructure Mini Grants provides GSI project funding for landowners within the King County Wastewater Treatment Division (WTD) service area who are not eligible for other incentive programs.

GSI Mini Grants
various outdoor activities involving water.

WaterWorks Grant Program

The WaterWorks Grant Program provides approximately $5 million in funding every two years to organizations carrying out a variety of water quality improvement projects in the service area for King County’s regional wastewater system.

WaterWorks Grant Program
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RainScapes Program

The RainScapes program partners with properties in unincorporated King County to fund and install GSI features, like rain gardens, cisterns, and native plant landscaping, on their property.

RainScapes Program
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Beyond Code Partnerships

Beyond Code Partnerships think creatively during large development design to treat stormwater from the right-of-way

Beyond Code Partnerships
A garden bed with multiple sections of bushes, grasses, and rocks.

Interagency Projects

Are you a City of Seattle employee looking for opportunities to enhance public properties while also maximizing capacity to treat runoff from streets and highways?

SPU Interagency Opportunites
A map of the Puget Sound with green dollar sign graphics as location pins in a variety of cities near Seattle.

Regional Programs

Looking for programs outside the City of Seattle? You can explore a larger list of programs throughout Western Washington.

Regional Incentives