What matters for project planning
The City of Joliet's Community Development Department is the permitting authority for exterior work within city limits, operating under the City's Stormwater Management Ordinance, and requires landowners to maintain on-site stormwater control facilities on new development and redevelopment. Will County separately maintains its own water-resource ordinances for unincorporated areas -- Chapter 55 (Stormwater Management) and Chapter 164 (Water Resource Ordinances) -- so which office to check with depends on the exact address.
Official sources
Verify the property, not just the city
Citywide context cannot establish a parcel's historic designation, permit requirements, opening dimensions, or concealed construction. Confirm these specifics with the City of Joliet or Will County, and with your selected provider, before work begins.
Sources reviewed 2026-07-26. External requirements and maps can change.