Updated Radon Standards for Fannie, Freddie Multifamily Properties

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Contact: Michelle Kitchen
mkitchen@nahb.org
(202) 266-8352

Published

The Federal Housing Finance Agency today announced enhanced radon testing requirements for Fannie Mae and Freddie Mac multifamily properties with loan applications received after June 30, 2023.

The enhanced radon testing at Fannie and Freddie-backed multifamily properties, regardless of where the property is located (subject to some exceptions and deferrals), will include:

  • Increasing the amount of required testing from 10% of ground floor units to 25% of ground floor units;
  • Requiring an environmental professional to oversee radon testing;
  • Requiring the environmental professional or property representative to notify tenants of radon testing; and
  • Providing additional guidance for lenders and environmental consultants on Fannie and Freddie’s radon standards. As part of such guidance, Fannie Mae and Freddie Mac will reinforce the need for compliance with state and local radon laws.

In addition, Fannie Mae and Freddie Mac will collaborate with housing providers, radon industry stakeholders, and the Centers for Disease Control and Prevention (CDC) to encourage better radon data collection at multifamily properties.

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