Administrative overview · FIPS 17043
DuPage County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
DuPage County Building and Zoning Department
For a project in or near DuPage County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
630-407-6700
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
DuPage County Building and Zoning Department, 421 N. County Farm Road, Wheaton, IL 60187
Operating hours
Monday-Friday, 8:00 AM-4:30 PM; in-person guidance by appointment
Review expectation
Ask the agency for its current review estimate
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for DuPage County
Who handles permitting for this jurisdiction?
DuPage County Building and Zoning Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 630-407-6700.
How long might review take?
A typical review timeline was not verified. Ask the agency for its current completeness and review estimate.
How are inspections scheduled?
Owners or contractors must call 630-407-6700 at least 24 hours before an inspection and provide the permit number. Required stages include erosion control, footing, foundation/backfill, radon, under-slab, framing, rough plumbing/electrical/HVAC, insulation, energy conservation, and final inspection. No required inspection for 180 days can cause permit expiration; occupancy requires final approval and a certificate of use and occupancy.
Which codes and exemptions should I review?
For unincorporated DuPage County, the County Building Code was approved with changes effective January 1, 2024. The Department also enforces adopted zoning, stormwater, energy-conservation, and related building requirements; incorporated municipalities handle their own local permitting. N/A; the department's public permit page lists permits for accessory structures, decks, fences, sheds, pools, remodels, roofing, electrical, HVAC, and other work, but does not publish a complete countywide minor/cosmetic exemption list.