Is a radon disclosure required in Illinois?
The Illinois Radon Awareness Act generally requires the seller to provide the radon pamphlet and disclosure before the buyer becomes obligated under a purchase contract, subject to the Act’s exclusions. Confirm the applicable documents and timing with the professional handling your transaction.
For a Madison or St. Clair County sale, put radon paperwork on the document checklist early. Do not wait until a contractor is at the property to decide who is responsible for collecting existing records. This is a general explanation of the process, not a decision about a specific contract.
The state’s real estate guidance also distinguishes disclosure from a requirement to perform testing or remediation. A purchase agreement may introduce separate inspection or repair commitments.
- Confirm whether an exclusion applies.
- Ask when documents must be delivered.
- Keep copies with the transaction records.
What does the Illinois radon disclosure form ask?
The sales disclosure addresses the seller’s knowledge of elevated radon and available records or reports. Use the current form appropriate to the sale. A tenant disclosure form is a different document and should not be substituted simply because it also contains the word radon.
Gather the records before completing the form. A prior test, mitigation invoice and later verification report may provide useful context for the transaction professional. Avoid answering from memory when the documents can be retrieved.
If a system has been altered or a report refers to an earlier building layout, flag that context for the professional reviewing the paperwork.
- Locate earlier radon reports.
- Gather installation and verification records.
- Check that the form is intended for a sale.
- Ask the transaction professional about incomplete information.
Is there a PDF of the Illinois radon pamphlet?
IEMA-OHS provides approved real estate testing guidance through its real estate resources page. Use the state-hosted version rather than a locally saved copy whose status is uncertain. The source links below include that page and the state’s testing-guidelines PDF.
Check the document title before sending it. A general radon brochure, a tenant handout and the real estate pamphlet are not interchangeable. Keep a record of the version delivered and ask the transaction professional to confirm it is the correct material.
What should a buyer do with a high Illinois radon result?
Bring the complete report to the inspection discussion and obtain a property-specific mitigation assessment. The report should identify its measurement locations and dates. The proposed work should be specific enough for the parties to understand what is being priced.
Coordinate any repair agreement through the transaction professionals. Confirm who arranges the work, how access is provided and who obtains the follow-up measurement. Allow time for that verification rather than treating the installation date as the only milestone.
Air Sense Environmental can discuss the radon work at the property. Call 314-664-9807 with the address, report and relevant deadline; questions about legal obligations or contract remedies belong with the professional handling the sale.
- Request a written mitigation scope.
- Agree on access and responsibility.
- Plan follow-up measurement before relying on completion.
Questions before you book
Does disclosure mean the seller must install a system?
The disclosure rules do not themselves impose a universal testing or mitigation requirement. The purchase agreement and circumstances need separate review.
Can I use a tenant radon form for a sale?
Use the form intended for the transaction. Ask the professional handling the sale to confirm the current sales disclosure and required pamphlet.
Is a mitigation invoice a test result?
No. An invoice documents work. A measurement report documents the radon concentration under stated test conditions.