City Building Permits

Darien, ILLINOIS Building Permit Guide

How to apply for a building permit in Darien, Illinois. Permit authority, application steps, fees, and inspection requirements.

Illinois DuPage County Updated March 2026

Permit Authority

Serves the City of Darien.

Department: Community Development Department
Address: 1702 Plainfield Road, Darien, IL 60561
Phone: (630) 353-8115
Email: mbelmonte@darienil.gov
Website: https://www.darien.il.us

Online Permit Portal

Open Darien OpenGov Portal

Platform: OpenGov • Account required: Yes • Submission: Online only

Application Process

Create account on OpenGov portal.
Submit application and upload plans/survey.
Plan review period.
Pay fees online.
Permit issuance.

Typical processing time: Varies by project complexity.

Source: Community Development Department

General Requirements

New construction, additions, basement remodeling, decks, fences, sheds, pools, patios, driveways, generators, water heaters, AC.

Required Documents

Plat of Survey
Construction plans
Contractor registration

Permit validity: Varies.
Building code: 2021 IBC, 2021 IRC, 2020 NEC, Illinois Plumbing Code. Effective March 1, 2025.
Owner-builder: Allowed.
Contractor requirements: Contractors registered ($60/year); plumbers/roofers provide state license.

Fees

Minimum permit fee: $25 (Fence), $50 (Roof/AC), $75 (Driveway), $115 (Deck/Shed)
Plan check fee: Included in permit cost
Permit fee formula: Flat fees for common; cost-based for remodels (e.g. $75 for $0-8k value).
Trade permit fee: Varies
Reinspection fee: $80 first failure; $100 subsequent
Penalty (no permit): Penalty for unpermitted work
Payment note: Online via OpenGov

Fees change. Verify current amounts at the official fee schedule (effective Current).

Work That Does NOT Require a Permit

Minor roof repairs
Siding
Soffits
Same-size window/door replacement
Cosmetic interior

Important: Confirm exempt work categories with Community Development before proceeding.

Inspections

How to Schedule

(630) 353-8115 by 2pm day before (phone)

Scheduling deadline: Call by 2pm day before inspection.
Inspection hours: Monday - Friday, 8:30 AM - 5:00 PM
Time windows: Standard business hours.

Typical inspection sequence: Rough, Final.

Contact Community Development for remote inspection eligibility.

Additional Resources

Building code: 2021 IBC, 2021 IRC, 2020 NEC, Illinois Plumbing Code. Effective March 1, 2025.
Verify contractor license: Illinois Department of Financial and Professional Regulation
Zoning information: View zoning info
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 Community Development Department before applying.

Need help with your project?

Navigating permits in Darien can be complicated.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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