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When a permit is required
Permit triggers and exempt work for DuPage County
New construction, additions, major renovations, demolition, roofs (tear-offs), siding (not overlay), windows, HVAC, decks, fences, pools (>24" deep).
- Exempt Ordinary repairs/maintenance
- Exempt Roof/siding overlays (max 2 allowed)
Note: Confirm exempt work categories with Building and Zoning Department before proceeding.
- Scalable Plat of Survey
- PDF construction plans
- Contractor registration
- Building code
- DuPage County Building Code, 2021 IBC, 2021 IRC, 2020 NEC, Illinois Plumbing Code.
- Owner-builder
- Allowed.
- Contractor requirements
- General and trades must be registered annually.
Source: Building and Zoning Department ↗
Application process
Typical processing: Varies; depends on stormwater/wetland impacts.
- 01 Register on Accela Citizen Access.
- 02 Submit application and upload PDF plans/survey.
- 03 Review for building, zoning, and stormwater compliance.
- 04 Notification of approval and fees.
- 05 Pay fees and bonds online.
- 06 Permit issued via portal.
Typical processing time: Varies; depends on stormwater/wetland impacts.
Source: Building and Zoning Department ↗
Fee schedule
Effective Current
Online via ACA
Fees change periodically. Confirm at the official fee schedule ↗ (effective Current) before budgeting.
Required inspections
Scheduling and sequence
- Accela portal (online)
- Scheduling deadline
- Check portal for scheduling windows.
- Inspection hours
- Monday - Friday, 8:00 AM - 4:30 PM
- Time windows
- Standard business hours.
Typical sequence: Foundation, Stormwater, Rough, Final.
Required to close permit and release bonds.
Source: Building and Zoning Department ↗
Frequently asked
Common questions about unincorporated DuPage County permits
01 Do I need a building permit in unincorporated DuPage County, IL? ▸
02 How much does a building permit cost in unincorporated DuPage County, IL? ▸
03 How do I apply for a building permit in unincorporated DuPage County, IL? ▸
04 How long does it take to get a building permit in unincorporated DuPage County, IL? ▸
05 What work is exempt from building permits in unincorporated DuPage County, IL? ▸
06 How do I schedule a building inspection in unincorporated DuPage County, IL? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Building and Zoning Department before applying. Jaspector is not legal advice.