What matters for project planning
Footing excavation is ground disturbance, and Champaign is the permitting authority for land-disturbing activity, which can require an approved stormwater control plan for qualifying projects. That makes the scale and siting of a deck a question worth settling before design rather than after. A deck also changes how a lot sheds water, so where a project alters drainage enough to need a new or modified connection to the municipal system, the city's stormwater-connection permit applies. Properties near the Urbana or Savoy boundaries should confirm which authority reviews them.
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 items with the appropriate authority and selected provider before work begins.
Sources reviewed 2026-07-26. External requirements and maps can change.