Washington

Rain garden and stormwater rebates in Washington

9 programs in Washington pay residents for rain gardens and stormwater projects. 3 list themselves as open now, and the per-square-foot programs pay a median of $2 per square foot. 89% ask for a plan, sketch or plant list before they approve a project.

Stormwater utilities and conservation districts share the cost of projects that soak rain into the ground instead of sending it to the storm drain: rain gardens, downspout disconnection, permeable paving, bioswales and dry wells. Many ask for a site sketch and a pre-approval visit.

9 programs

  • OpenPlan required

    Kitsap CD Rain Gardens and More Program

    Kitsap Conservation District (funded by Clean Water Kitsap)

    Cost Share reimburses up to $1,500; or Dig Day where KCD supplies installation and materials and pays the contractor directly (rain gardens)

    Up to $1,500 per household

  • OpenPlan required

    Lake Whatcom Homeowner Incentive Program (HIP)

    Lake Whatcom Homeowner Incentive Program (City of Bellingham, Whatcom County, Whatcom Conservation District)

    Rebate of up to $2.00 per square foot improved for eligible expenses; no overall cap published

  • OpenPlan required

    RainWise Rain Garden and Cistern Rebate

    Seattle Public Utilities and King County

    Up to $13.12 per sq ft of roof area for rain gardens; up to $9.91 per sq ft of roof area for cisterns; rebates cover 90-100% of installation cost

  • SeasonalPlan required

    City of Shoreline Soak It Up Rebate for Rain Gardens and Native Landscapes

    City of Shoreline Surface Water Utility

    Up to $5,600 for homeowners (based on project size); up to $14,000 for schools, businesses, faith-based and other large properties

    Up to $5,600 per household

  • SeasonalPlan required

    City of Kirkland Yard Smart Rain Rewards

    City of Kirkland Surface Water Utility

    Single-family: 75% of contractor costs or 100% of DIY costs, up to $5,000; standard projects $7.50 per sq ft of impervious surface managed

    Up to $5,000 per household

  • SeasonalPlan required

    Pierce CD Green Stormwater Mini Grants

    Pierce Conservation District

    75% of project costs up to $4,000 per property (applicant pays at least 25%)

    Up to $4,000 per household

  • SeasonalPlan required

    Tacoma Make a Splash Stormwater Grant

    City of Tacoma Environmental Services, administered by Pierce Conservation District

    Reimbursement of 75% of project costs, up to $4,000

    Up to $4,000 per household

  • Status not postedPlan required

    Stewardship Partners GSI Mini Grants (12,000 Rain Gardens)

    Stewardship Partners / King County WTD Waterworks Grant (12,000 Rain Gardens)

    Up to $1,500 typical (page: up to total project cost, varies by benefits); up to $4,500 for income-limited landowners per King County

    Up to $1,500 per household

  • Waitlist

    King County RainScapes Green Stormwater Pilot

    King County Stormwater Services Section

    County covers construction costs during pilot plus first year of maintenance

Other Washington programs

Rain garden and stormwater rebates in every state

Sow is not affiliated with any of these agencies or utilities. Amounts and rules change, often at the start of a fiscal year, so confirm the details on the official page before you start a project. How we research these programs

Plan the project before you apply

Sow lays out your new planting on a photo of your yard and builds the plant list from plants suited to where you live.

Start a plan in Sow