What matters for project planning
Candidly, this framework has almost no bearing on window replacement. The stormwater-connection permit concerns drains tied into the municipal system; land-disturbing permitting concerns ground disturbance; the coordination with Champaign County, Urbana, the University and Savoy concerns which authority reviews site work. A window touches none of them. Your permit is a building permit, and which office issues it depends on the address. What actually governs the outcome is physical — whether openings are square, what the framing is doing, and how the installation is flashed.
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. Check flood, historic, and permit specifics with the City of Champaign or Champaign County, and with your selected provider, before work starts.
Sources reviewed 2026-07-26. External requirements and maps can change.