City of Peru

LaSalle County, Illinois

Last verified September 17, 2026

City of Peru is a jurisdiction in LaSalle 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: 815-224-6020
Department Site: Building and Zoning Department (opens in a new tab)

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

Permit Search

City of Peru Building Permit Applications (SeamlessDocs) (opens in a new tab)

Certificate Holder Mailing Address

City of Peru, Building and Zoning Department
1901 4th Street
Peru, IL 61354

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

Additional Notes

Confirmed on the City of Peru's official site (peru.il.us). Department is led by Eric Carls, P.E., Director of Engineering and Zoning. An email address for the department appears on the official site but was rendered as an obfuscated '[email protected]' placeholder in every fetch, so it is left blank here rather than guessed. Fax: 815-223-9381. Note: Peru is a home-rule municipality straddling LaSalle and Bureau counties, but the city (and its building department) is the applicable authority regardless of county line.

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 Peru'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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