City Building Permits
Naperville, ILLINOIS Building Permit Guide
How to apply for a building permit in Naperville, Illinois. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Serves the City of Naperville, including portions in both DuPage and Will Counties.
- Department
- Transportation, Engineering and Development (TED) Business Group - Building Services
- Address
- Municipal Center, 400 S. Eagle St., Naperville, IL 60540
- Phone
- (630) 420-6100 (Option 2)
- Website
- https://www.naperville.il.us
Online Permit Portal
Platform: EnerGov • Account required: Yes • Submission: Online only
Additional resources:
Application Process
- Register for an account on the Civic Access Portal.
- Select the appropriate permit type and complete the online application.
- Upload required documents (plans, surveys, etc.) in PDF format.
- Pay the initial administrative/clerical fee.
- TED staff conducts a plan review (Building, Zoning, Engineering, etc.).
- Applicant receives comments or approval; if approved, final fees are calculated.
- Pay final permit fees online.
- Permit is issued and can be printed from the portal.
Typical processing time: Varies by project; simple permits (roof/HVAC) may be express, while additions take several weeks.
Source: Transportation, Engineering and Development (TED) Business Group - Building Services
General Requirements
Required for new construction, additions, remodeling (kitchens, basements, bathrooms), structural repairs (foundation, load-bearing walls), demolition, decks, patios (over 500 sq. ft.), fences, pools, and new mechanical systems (HVAC, electrical, plumbing).
Required Documents
- Plat of Survey
- Construction drawings
- Energy code compliance (if applicable)
- Contractor registration
- Permit validity
- Generally valid for 6 months if work has not started; expires 1 year after issuance if not completed.
- Building code
- 2018 ICC series (IBC, IRC, IMC, IFC) with local amendments; transitioning to 2024 ICC codes effective April 1, 2026. Also 2023 NEC and Illinois Plumbing Code.
- Owner-builder
- Homeowners may perform work on their own primary residence but must sign an owner-occupant affidavit.
- Contractor requirements
- Contractors must be registered with the City. State-licensed trades (plumbers/roofers) must provide state license copies.
Fees
- Minimum permit fee
- $18 (Administrative/Clerical fee) + project-specific inspection/review fees
- Plan check fee
- Approximately $25-$49 per plan page
- Permit fee formula
- Combination of flat fees (clerical), square footage-based fees for new construction, and per-page plan review fees ($25-$49 per page)
- Trade permit fee
- Varies by trade
- Reinspection fee
- Standard reinspection fee is $68
- Penalty (no permit)
- Work started without a permit results in a fine (typically double the fee)
- Payment note
- Online payments via credit card or e-check; credit card fees may apply
Fees change. Verify current amounts at the official fee schedule (effective Current).
Work That Does NOT Require a Permit
- Cosmetic improvements (painting, wallpapering, carpeting)
- Minor repairs not affecting structural or safety systems
- In-kind replacements of water heaters, furnaces, or A/C units (if no power source change and within certain limits)
Important: Verify exempt work categories with the Building Division before proceeding.
Inspections
How to Schedule
- Civic Access Portal (online)
- (630) 420-6100 (Option 1) (phone)
- Scheduling deadline
- Same day or next business day depending on timing.
- Inspection hours
- Monday - Friday, typically 8:00 AM - 4:00 PM
- Time windows
- Morning and afternoon windows available.
Typical inspection sequence: Footing, Foundation, Under-slab, Framing, Rough-in (Electric/Plumbing/Mechanical), Insulation, Final.
Contact the Building Division for remote inspection eligibility.
Additional Resources
- Building code: 2018 ICC series (IBC, IRC, IMC, IFC) with local amendments; transitioning to 2024 ICC codes effective April 1, 2026. Also 2023 NEC and Illinois Plumbing Code.
- Verify contractor license: Illinois Department of Financial and Professional Regulation
- Zoning information: View zoning info
- Owner-builder rules: View rules
- License lookup guide: Illinois Contractor License Requirements
- Contract template: Illinois Homeowner-Contractor Agreement
- Illinois hub: Illinois Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Transportation, Engineering and Development (TED) Business Group - Building Services before applying.
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