City of Darien

DuPage County, Illinois

Last verified September 17, 2026

City of Darien is a jurisdiction in DuPage County, Illinois, with an online portal for searching and pulling active or historical building permits. Use the contact information below to reach the local building department, or the mailing address if the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Contact

Phone: 630-353-8115
Email: mbelmonte@darienil.gov
Department Site: Community Development Department, Building Division (opens in a new tab)

Source: darien.il.us (opens in a new tab)

Permit Search

Darien OpenGov Permit Portal (opens in a new tab)

Certificate Holder Mailing Address

City of Darien - Community Development Department
1702 Plainfield Road
Darien, IL 60561

Use this address when the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Additional Notes

Confirmed via the official city site (darien.il.us) as the real Illinois city in DuPage County (not to be confused with Darien, CT). Note: the department's staff email and the online permit portal use a darienil.gov domain, distinct from the darien.il.us site domain — both appear to belong to the same city organization (likely an in-progress domain transition), so this is flagged as a minor discrepancy rather than a different entity. All permits are now processed through the OpenGov portal per the official site.

What You Need Before Applying for a Permit

Most building departments ask for the same core package before they'll issue a permit: a completed application naming the property owner and contractor, the contractor's state license number and proof of insurance (general liability, and workers' comp if employees are on the job), a notice of commencement or equivalent recorded filing for larger jobs where the state requires one, and scaled plans or a site plan for anything beyond minor repairs. Roofing, fence, pool, and solar permits typically have their own simplified checklists — City of Darien's department (above) can confirm exactly what applies to your project.

Why this matters for insurance: permit history is one of the first things an underwriter or adjuster checks. Unpermitted work — a finished basement, an added bedroom, a rebuilt roof — can complicate a claim or even void coverage for that portion of the loss, and it routinely surfaces during a home inspection. Pulling the right permit up front, and keeping the closed-permit record on file, protects both the property's value and its insurability at resale.

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