Many Denver-area neighborhoods contain homes built long before 1978. Federal law treats most pre-1978 housing differently because lead-based paint may still be present. Before a buyer becomes obligated under the contract, the seller and real estate licensees generally must provide the required disclosure, known information and available reports, along with the federal lead-safety pamphlet.
The key word is known. A seller can truthfully disclose that they have no knowledge of lead-based paint and still own a home that contains it. The disclosure is not a certification that the property is lead-free. It tells the buyer what the seller knows, what records or reports the seller has and whether any known hazards have been identified.
Federal rules also give buyers of covered housing an opportunity to conduct a lead-based paint risk assessment or inspection. The standard disclosure references a 10-day opportunity unless the parties agree in writing to a different period. A buyer can also waive that opportunity. The decision should reflect the property's age, condition, planned renovations and the household's risk factors.
Condition matters. EPA explains that lead-based paint that is intact is generally less concerning than paint that is peeling, chipping, chalking, cracking or creating contaminated dust. Renovation can also disturb old painted surfaces, so a buyer planning substantial work on an older home should think beyond the transaction itself and consider lead-safe renovation practices.
For sellers, the safest mindset is accurate disclosure and good records, not guessing. If prior testing, remediation or reports exist, those documents should be handled as the law requires. For buyers, the safest mindset is to understand that the disclosure is an information document, not a clean bill of health.
Older Denver homes can offer character, location and value. The age of the house simply changes the due-diligence checklist. Sources: U.S. Environmental Protection Agency lead disclosure guidance updated in 2026; Colorado Real Estate Commission Lead-Based Paint Disclosure form.
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