How to Get the Cost-Share Drainage Assistance Program

What you get

Reimburses residents 50% of eligible costs, up to $5,000 per project, for water-quality solutions including rain gardens, bioswales, and bioretention. All properties in DuPage County are eligible (DuPage County Stormwater Management; last verified June 2026).

• Residential: 50% of eligible costs, up to $5,000 per project

Are you eligible?

• Be a DuPage County Stormwater Management customer
• Property located in: Naperville, Wheaton, Downers Grove, Bolingbrook, Elmhurst
• Property in DuPage County
• Rain garden, bioswale, or bioretention project
• Reimbursement of 50% up to $5,000

What applying usually looks like

A general guide. Always confirm the exact steps on the official program page, since each provider runs its process a little differently.

1. 1

   Apply and get written approval first

   Submit your application to DuPage County Stormwater Management and wait for written approval before you remove any turf or start work. Starting early is the most common reason a rebate is denied.

2. 2

   Do the conversion

   Replace your lawn with the qualifying landscaping, following the eligibility requirements above.

3. 3

   Submit your claim

   After the work is done, submit your claim on the official program page. Confirm the exact forms, receipts, and any photos they require there, since those vary by program.