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Radon warning statement

Illinois radon disclosure 2026

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The document outlines the disclosure requirements regarding radon hazards for residential real property sales or purchases. It informs buyers about the risks of indoor radon gas, a known carcinogen linked to lung cancer, and mandates sellers to provide any existing radon test results. The Illinois Emergency Management Agency recommends that all homebuyers conduct radon testing before purchase and take necessary mitigation actions if elevated levels are detected. The document includes sections for seller disclosures, purchaser acknowledgments, and agent certifications.

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Click ‘Get Form’ to open the Illinois Radon Disclosure in our platform.
Begin by entering the property address in the designated field at the top of the form.
In the Seller's Disclosure section, initial next to each statement that applies regarding elevated radon concentrations. If applicable, provide explanations where required.
Move to the Purchaser's Acknowledgment section and initial next to each statement confirming receipt of information and pamphlets.
If an agent is involved, ensure they initial the Agent's Acknowledgment section, confirming they have informed the seller of their obligations.
Finally, all parties must review and sign in the Certification of Accuracy section, ensuring all information provided is true and accurate.

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Is radon disclosure required in Illinois?

There are a number of exemptions under the Act, for example, transfers pursuant to court order, to or from a mortgagee, during the administration of an estate, to a co-owner, to a legatee under a will or an heir, to a spouse or lineal relatives, from a relocation company, or to or from a governmental body.

Who is exempt from property disclosures in Illinois?

The law applies to conventional sales, installment sales, and sales of property owned by an Illinois Land Trust. (See 765 ILCS 77/10 and 15.) You need not complete a disclosure form if you never occupied the property and never had management responsibility for it, nor if you hired someone else to manage it.

What is a radon disclosure?

The average Illinois indoor air radon concentration is 5.1 pCi/L, above the EPA action level (Source: IEMA).

What disclosures are required in Illinois?

Illinois law requires sellers to disclose known defects, radon levels, and septic system conditions when selling as-is. Transparency in as-is sales builds buyer trust and prevents legal issues by sharing property condition and known problems.

Are radon disclosures required in Illinois?

Radon Disclosure and Warning. Illinois law requires that, before a lease is signed and upon request during a tenancy, a landlord provide tenants a state-approved radon pamphlet and any records indicating a radon hazard exists in the dwelling.