Codes, exemptions & field inspections
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 current county materials require compliance with the Washington County Zoning Ordinance and applicable local, Illinois, and national construction/electrical codes; no single 2026 edition list was published. The ordinance includes current commercial solar and wind siting requirements.
Inspection lane
The certificate-of-zoning-compliance form includes inspection-date fields and requires a site plan and property measurements. Call (618) 327-4800 ext. 345 for an appointment; special solar/wind projects also require county review, road approvals, and inspections or third-party engineering as applicable.
Minor-work playbook
The county states that all construction requires a building permit, including agricultural buildings. Its fee schedule lists agricultural-purpose buildings as ag-exempt from the filing fee and structures under 150 square feet at $0, but these fee exemptions do not state that construction is permit-free.
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
Request with lead time
The certificate-of-zoning-compliance form includes inspection-date fields and requires a site plan and property measurements. Call (618) 327-4800 ext. 345 for an appointment; special solar/wind projects also require county review, road approvals, and inspections or third-party engineering as applicable.
Preserve access
Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.
Close the record
Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.
Contractor verification
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.
Planning reference
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
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.
Project questions
Washington County Zoning Office is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (618) 327-4800 ext. 345.
The ordinary permit form states that a compliant permit will be issued within a few days. For wind/solar special-use projects, applicants have one year after the special-use permit to apply for a building permit and two years thereafter to complete the project.
The certificate-of-zoning-compliance form includes inspection-date fields and requires a site plan and property measurements. Call (618) 327-4800 ext. 345 for an appointment; special solar/wind projects also require county review, road approvals, and inspections or third-party engineering as applicable.
The current county materials require compliance with the Washington County Zoning Ordinance and applicable local, Illinois, and national construction/electrical codes; no single 2026 edition list was published. The ordinance includes current commercial solar and wind siting requirements. The county states that all construction requires a building permit, including agricultural buildings. Its fee schedule lists agricultural-purpose buildings as ag-exempt from the filing fee and structures under 150 square feet at $0, but these fee exemptions do not state that construction is permit-free.
Field sequencing matters
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.