What matters for project planning
The City of Champaign requires a permit (a $70 fee) for new or modified connections to the municipal stormwater drainage system and is the permitting authority for land-disturbing activity, requiring an approved stormwater control plan for qualifying construction projects. Champaign coordinates that permitting with Champaign County, the City of Urbana, the University of Illinois, and the Village of Savoy through the Champaign County Stormwater Partnership's shared MS4 permit program. Exterior drainage changes around a foundation can count as land-disturbing activity, so Champaign's stormwater permit requirements should be checked before altering grading or connections.
Official sources
Verify the property, not just the city
Citywide context cannot establish a parcel’s flood zone, historic designation, permit requirements, soil conditions, or concealed construction. Confirm those specifics with the appropriate Champaign authority and the selected provider before work begins.
As reviewed on 2026-07-26 -- keep in mind external rules and maps get updated over time.