Rockville Radon Requirements for Sales and Rentals
Educational guidance on City of Rockville radon requirements for qualifying home sales and rental properties, with links to current City sources.
Reviewed by Daisy Rezende, NRPP Radon Measurement Professional.
Rockville publishes radon information that addresses qualifying home sales and qualifying rental properties. These are City-specific requirements and should not be substituted for Montgomery County or statewide requirements.
Qualifying home sales
Rockville’s current public information says that laws put into effect in 2023 apply Montgomery County’s home-energy disclosure and radon-testing laws to the sale of single-family homes and townhomes in Rockville.
The City’s public materials describe a seller providing the buyer with results of a radon test conducted less than one year before the sale date for qualifying single-family homes or townhomes. The City and County sources describe exclusions that should be checked before relying on a summary.
Qualifying rentals
Rockville’s rental information describes testing for units in rental facilities that are in contact with the ground, including basement apartments and dwelling units with a basement, crawlspace, or slab in contact with the ground.
The City says a landlord must test before leasing a qualifying dwelling unit. Its published guidance also describes notice, confirmatory testing, mitigation, and lease-termination rights when a reported result exceeds the stated action level.
Use the City source for the current rule
Local ordinance details can change. Review the City’s current radon page and contact the City or a qualified legal professional for a property-specific question. Smart Home Inspects provides testing and educational context, not legal advice.
Educational information, not legal advice
Local code, agency guidance, and property facts can change how a requirement applies. Review the current official source and seek qualified legal or housing advice for a compliance question.
Authoritative sources
Current City overview of local sale and rental requirements.
City information describing qualifying rentals, testing, notice, and follow-up.
Related radon resources
Need professional radon testing?
Schedule testing or contact Smart Home Inspects to discuss the property and the reason for your measurement.