Colorado Seller Disclosure Requirements: What Home Sellers Must Reveal

If you’re selling a home in Colorado, state law requires you to tell the buyer about problems with the property — and the list of what qualifies as a “problem” is longer than most sellers expect. Colorado’s Seller’s Property Disclosure form covers everything from foundation cracks and roof leaks to radon levels, meth contamination history, and whether your solar panels are leased or owned. Skipping something or glossing over a known defect can lead to lawsuits that drag on for years after closing. For buyers, the disclosure form is one of the most valuable documents in the transaction — it tells you what the seller knows (or claims to know) about the home’s condition. If you’re listing your property or making a purchase, understanding Colorado’s disclosure requirements protects your interests and helps the deal close cleanly. Here’s what’s required, what’s optional, and where sellers get tripped up.

How Seller Disclosure Works in Colorado

Colorado law (C.R.S. 38-35.7-101 through 38-35.7-104) requires sellers of residential property to disclose known material facts about the property’s condition. The standard vehicle for this is the Seller’s Property Disclosure form, which the Colorado Real Estate Commission publishes and updates periodically. Most sellers encounter this form through their listing agent, who should walk them through it before the property goes on the market.

The law uses the phrase “known material facts” deliberately. You’re not required to go hunting for problems you don’t know about. You don’t need to hire an inspector before listing. But you absolutely must disclose defects and conditions you’re aware of. “I didn’t know” is a valid defense — “I forgot” or “I didn’t think it mattered” is not.

The disclosure form covers dozens of categories across several pages. For each item, sellers typically indicate whether they’re aware of any issues, provide details if they are, or indicate the item doesn’t apply. The completed form becomes part of the transaction file, and the buyer receives it during the inspection period or earlier.

One important note: Colorado is a “caveat emptor” state with disclosure obligations layered on top. The buyer still has the responsibility to conduct their own inspections and due diligence. The seller’s disclosure supplements — but doesn’t replace — a professional home inspection. Buyers should never rely solely on the disclosure form to understand the property’s condition.

What the Disclosure Form Covers

This table covers the broad categories, but the actual form gets specific. Sellers answer questions about individual components — does the dishwasher work, when was the roof last replaced, has there ever been a termite treatment, is the property in a metro district with extra tax obligations. The more honestly and thoroughly you complete the form, the better protected you are from future claims.

Radon Disclosure — Colorado’s #1 Environmental Issue

Colorado has some of the highest radon levels in the country. Radon is a naturally occurring radioactive gas that seeps from the ground into homes, primarily through foundation cracks and gaps. Long-term exposure is the second leading cause of lung cancer after smoking. The EPA considers levels above 4 picocuries per liter (pCi/L) to be actionable, and many Colorado homes test well above that threshold.

Colorado law requires sellers to disclose known radon test results. If you’ve had a radon test done at any point while you owned the home, you must share those results with the buyer. You’re not required to test before selling, but if you have test data, you can’t hide it.

Here’s the practical reality: almost every buyer in Colorado will test for radon during their inspection period. If levels are high, they’ll ask for a mitigation system as part of their inspection objection. Radon mitigation typically costs $800 to $2,500 and involves installing a vent pipe and fan system that pulls radon from beneath the foundation and vents it above the roofline. It’s effective, and it’s become a standard part of Colorado real estate transactions.

If you’re buying, don’t skip the radon test. Even if the seller discloses clean results from five years ago, conditions change. Test during your inspection period, and if levels are elevated, negotiate mitigation into the contract. Our Denver relocation guide covers more about environmental factors affecting Front Range homes.

Meth Contamination Disclosure

Colorado has specific requirements around methamphetamine contamination that go beyond most other states. Under state law, a property that has been used to manufacture meth must be tested and remediated to state standards before it can be sold or occupied. The Colorado Department of Public Health and Environment (CDPHE) maintains a list of contaminated properties, and sellers must disclose if they know or have reason to believe the property was used for meth production.

The contamination threshold in Colorado is 0.1 micrograms per 100 square centimeters of surface area. Properties that exceed this level require professional remediation, which can cost $5,000 to $50,000+ depending on the extent of contamination. After remediation, the property must be retested and receive a clearance letter from the CDPHE before it can be reoccupied.

For buyers, this is another reason to conduct thorough due diligence. Meth contamination isn’t always visible, and it can affect air quality and surface residues throughout the home. If there’s any suspicion — peeling paint, chemical stains, unusual ventilation modifications, or the property’s history — a meth screening test costs $200 to $500 and provides peace of mind.

Lead Paint, Asbestos, and Other Environmental Hazards

Federal law requires sellers of homes built before 1978 to provide a lead paint disclosure. This applies in every state, including Colorado. Sellers must provide the EPA pamphlet “Protect Your Family From Lead in Your Home,” disclose any known lead paint or lead hazards, share any available lead inspection reports, and give buyers a 10-day period to test for lead.

Asbestos is a separate concern. Many Colorado homes built before 1980 contain asbestos in floor tiles, insulation, siding, or popcorn ceilings. Sellers must disclose known asbestos, though there’s no requirement to test. If you’re buying an older home, assume asbestos is present and factor testing and potential abatement into your budget.

Other environmental disclosures in Colorado include underground storage tanks (common on properties that previously had heating oil), soil contamination from prior commercial or industrial use, and mine subsidence risk in areas with historical mining activity (parts of Jefferson County, Clear Creek County, and other mountain communities).

HOA, Metro District, and Special Assessment Disclosures

Colorado requires sellers to disclose whether the property is subject to a homeowner’s association (HOA) and, if so, to provide the buyer with HOA governing documents, financial statements, and information about dues, assessments, and rules. This includes any pending or anticipated special assessments — one-time charges for major repairs or improvements that can run into thousands of dollars.

Metro district disclosure is equally important. Many newer Colorado subdivisions (particularly along the Front Range in communities like Parker, Castle Rock, Reunion, and Green Valley Ranch) are in metropolitan districts with elevated property tax mill levies. These additional taxes can add $1,500 to $3,000+ per year to your tax bill and persist for decades until the district’s infrastructure bonds are paid off. Sellers must disclose metro district status, and buyers should verify the specific mill levy at the property’s address.

For buyers, HOA and metro district costs are recurring expenses that affect your monthly budget in the same way as insurance and property taxes. Don’t overlook them when calculating affordability.

Solar Panels, Green Upgrades, and Modern Disclosures

Colorado has added disclosure requirements for newer home features that didn’t exist a generation ago. Solar panels top the list. Sellers must disclose whether solar panels are owned outright, financed through a solar loan, or leased from a third-party company. This distinction matters enormously.

Owned solar panels transfer with the property and are generally a selling point. Leased solar panels are a different story — the lease is a financial obligation that the buyer must assume or the seller must buy out. Solar leases can run 20 to 25 years with monthly payments, escalation clauses, and early termination penalties. Some buyers walk away from deals over unfavorable solar leases. If your panels are leased, get the full lease agreement ready for buyer review, and understand the terms so you can answer questions.

Other green feature disclosures include energy efficiency upgrades (insulation, windows, HVAC ratings), EV charging equipment, water-saving fixtures, and any energy audits or HERS ratings that have been performed. Buyers in Colorado increasingly ask about energy performance, so disclosing these features proactively can be a selling advantage.

How Disclosure Requirements Affect Home Sellers

The golden rule of seller disclosure: when in doubt, disclose. The liability for failing to disclose a known defect is almost always worse than the negotiating impact of disclosing it upfront.

If a buyer discovers an undisclosed defect after closing, they can sue for damages. Colorado courts have awarded buyers the cost of repairs, diminished property value, and in some cases, attorneys’ fees and consequential damages. These lawsuits typically allege fraud (intentional concealment) or negligent misrepresentation (you should have known), and they can be expensive to defend even if you win.

The better approach: complete the disclosure form thoroughly and honestly, with your listing agent’s guidance. If there’s a past issue that was fixed — say, a basement leak that you repaired and waterproofed — disclose the original problem AND the repair. Buyers appreciate transparency, and documented repairs show responsibility rather than negligence.

Sellers should also be aware of what they’re NOT required to disclose in Colorado. You don’t need to disclose that someone died in the property (including deaths from any cause), that the property was the site of a felony, or that a registered sex offender lives in the neighborhood. These are sometimes called “stigmatized property” issues, and Colorado law specifically exempts them from disclosure requirements.

Tips for Sellers and Buyers

Sellers: Complete the disclosure form before listing. Don’t wait until you have a buyer under contract. Having the form ready for showings demonstrates transparency and avoids delays during the contract period. Your listing agent can help you work through each section.

Sellers: Disclose repairs along with the original problem. A buyer who sees “basement had water intrusion in 2019, professionally waterproofed by ABC Company with 10-year warranty” is reassured. A buyer who discovers evidence of water intrusion with no disclosure is alarmed. Same situation, very different outcome.

Sellers: Get a pre-listing inspection. While not required, a pre-listing home inspection lets you identify and address issues before they become negotiation points. It also documents the property’s condition at the time of sale, which can protect you from post-closing claims about pre-existing defects.

Buyers: Read every line of the disclosure form. Don’t skim it. Look for “yes” answers, then ask follow-up questions about what the seller knows. Pay attention to “unknown” answers too — sometimes sellers mark items unknown to avoid disclosing something they’d rather not talk about.

Buyers: Get your own inspections. The disclosure is based on the seller’s knowledge, not a professional assessment. Always get a home inspection, radon test, and sewer scope. In older homes, consider lead paint testing, asbestos screening, and meth testing. Factor these costs into your closing budget.

Both parties: Keep copies of everything. The signed disclosure form, any amendments, inspection reports, and repair documentation should all be preserved. If a dispute arises after closing, these documents are your primary evidence.

Frequently Asked Questions

What happens if a seller doesn’t disclose a known defect?

The buyer can sue the seller for damages, typically under claims of fraud (intentional concealment) or negligent misrepresentation. If the buyer proves the seller knew about the defect and didn’t disclose it, the seller can be liable for repair costs, diminished property value, and sometimes attorneys’ fees. These lawsuits can be filed for up to six years after closing in Colorado under the statute of limitations for fraud.

Am I required to disclose if someone died in my home?

No. Colorado law (C.R.S. 38-35.7-102) specifically states that deaths on the property, including suicides, homicides, or natural deaths, are not material facts that require disclosure. Similarly, you don’t need to disclose that the property was the scene of a crime or that a registered sex offender lives nearby. If a buyer asks directly, you can choose whether to answer.

Do I need to test for radon before selling?

You’re not required to test, but you must disclose any radon test results you already have. In practice, almost every buyer in Colorado will test for radon during their inspection period. If you test proactively and levels are high, you can install a mitigation system before listing and market the home as radon-mitigated — which many buyers prefer over negotiating mitigation during the contract.

What if I’m selling a property “as-is”?

Selling “as-is” does not eliminate your disclosure obligations. You still must complete the Seller’s Property Disclosure form and disclose known material facts about the property. “As-is” means the seller won’t make repairs — it doesn’t mean the seller can hide defects. Courts have consistently held that disclosure requirements apply regardless of the sale terms.

How do solar panel leases affect disclosure?

Sellers must disclose whether solar panels are owned, financed, or leased. If leased, the buyer needs to review the full lease terms and agree to assume the lease as a condition of the sale. Leased solar panels create a financial obligation — typically monthly payments for 20 to 25 years — that transfers to the buyer. Some leases include escalation clauses that increase payments annually, and early termination can cost $10,000 or more. Failing to disclose a solar lease can lead to post-closing litigation.

Do I need to disclose my home is in a metro district?

Yes. Metro district status and the associated mill levies are material facts that affect the property’s ongoing tax burden. Some metro districts add 30 to 50+ mills to the property tax rate. Colorado law requires this disclosure, and most standard real estate contracts include specific provisions for metro district disclosure. Failing to disclose metro district status is one of the more common disclosure complaints in Colorado.

What about mold — do I need to disclose it?

If you’re aware of mold or conditions likely to cause mold (persistent moisture, prior water damage, ongoing leaks), you must disclose it. Colorado’s disclosure form asks about moisture-related issues, and mold falls under this category. You’re not required to test for mold before selling, but if you’ve had mold testing or remediation done, share those reports with the buyer. Hidden mold is one of the most common sources of post-sale disputes in Colorado real estate.

Can my real estate agent fill out the disclosure form for me?

No. The Seller’s Property Disclosure must be completed by the seller, not the agent. The form is based on your personal knowledge of the property, and only you know what issues you’ve experienced, what repairs you’ve made, and what conditions exist. Your agent can help you understand the questions and advise on how to describe issues, but the actual answers and signature must come from you as the property owner.