Video Description

In this video, Daniel Preshaw, the broker and owner of His House Property Management, provides important information about Radon and its impact on rental properties. He discusses the new Colorado Senate Bill 23-206 that recently passed and highlights the need for landlords to comply with radon disclosure requirements. Daniel will explain what radon is, its potential health risks, and the importance of radon testing and mitigation. Viewers are advised to consult their own attorney for comprehensive guidance, but this video serves as a helpful guide to Colorado Landlords seeking to understanding the new laws.

Radon and Rental Properties Overview

  • Radon is an odorless, colorless, tasteless, radioactive gas that occurs naturally in Colorado soil.
  • Senate Bill 23-206, effective as law on August 7th, 2023, impacts landlords in Colorado regarding radon disclosures for rental properties.

Landlord Requirements

  • Landlords must provide tenants with a disclosure about the dangers of radon, past radon tests, test results, concentration levels, and whether a radon mitigation system has been installed before signing a lease.
  • Landlords must also provide tenants with a copy of the most recent brochure published by the Department of Public Health regarding radon and real estate transactions.
  • Tenants have the right to hire a radon measurement professional.
  • Landlords must make a reasonable effort to mitigate radon within 180 days if the radon concentration level is 4 picocuries per liter or more.


  • Ensure that the appropriate radon disclosure is provided to tenants before signing a lease to avoid lease voiding.
  • Consider having an attorney prepare the radon disclosure for compliance.
  • Gather all necessary documentation before advertising the rental property to comply with the new law.

We’re Here for You

If we at His House can be a resource for you, please do not hesitate to reach out! As a Greeley property management company, we’re committed to helping landlords throughout northern Colorado.