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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Kendall County.

Effective May 11, 2026: 2024 International Building Code; 2024 International Residential Code including Appendices BA, BB, and BE; 2023 National Electrical Code NFPA 70; Illinois Plumbing Code; 2024 International Mechanical Code; 2024 International Fuel Gas Code; 2024 International Existing Building Code; Illinois Energy Conservation Code; Illinois Accessibility Code; 2018 International Swimming Pool and Spa Code; and 2024 International Property Maintenance Code.

Inspection lane

Submit inspection requests by 4:00 PM at least one business day before the requested date to KCinspections@KendallCountyIL.gov. Windows are 7:00-11:00 AM and noon-4:00 PM, with no specific appointment time; inspection requests are not accepted by phone as the normal method.

Minor-work playbook

Understand what may be exempt—and what is not.

The county checklist says no permit is currently required for fences outside the floodplain, shingle replacement without pitch/structural/truss/roofline changes, nonstructural siding, like-for-like windows or doors without changing opening size/framing, and underground sprinkler systems. Agricultural properties use an agriculture-exempt permit process; the exemption does not remove zoning/setback or other required approvals.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    Submit inspection requests by 4:00 PM at least one business day before the requested date to KCinspections@KendallCountyIL.gov. Windows are 7:00-11:00 AM and noon-4:00 PM, with no specific appointment time; inspection requests are not accepted by phone as the normal method.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

No verified lookup link

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

Source trail

Official sources for this profile

Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.

Agency websiteOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗

Project questions

Frequently asked questions for Kendall County

Who handles permitting for this jurisdiction?

Kendall County Planning, Building & Zoning Department, Building Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.

How should I begin an application?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 630-553-4141; inspections: KCinspections@KendallCountyIL.gov.

How long might review take?

N/A for ordinary building permits; the county publishes a 10-30 day range for administrative zoning variances and typically 10 business days for some residential permit reviews, depending on completeness.

How are inspections scheduled?

Submit inspection requests by 4:00 PM at least one business day before the requested date to KCinspections@KendallCountyIL.gov. Windows are 7:00-11:00 AM and noon-4:00 PM, with no specific appointment time; inspection requests are not accepted by phone as the normal method.

Which codes and exemptions should I review?

Effective May 11, 2026: 2024 International Building Code; 2024 International Residential Code including Appendices BA, BB, and BE; 2023 National Electrical Code NFPA 70; Illinois Plumbing Code; 2024 International Mechanical Code; 2024 International Fuel Gas Code; 2024 International Existing Building Code; Illinois Energy Conservation Code; Illinois Accessibility Code; 2018 International Swimming Pool and Spa Code; and 2024 International Property Maintenance Code. The county checklist says no permit is currently required for fences outside the floodplain, shingle replacement without pitch/structural/truss/roofline changes, nonstructural siding, like-for-like windows or doors without changing opening size/framing, and underground sprinkler systems. Agricultural properties use an agriculture-exempt permit process; the exemption does not remove zoning/setback or other required approvals.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.