One Spouse Under 55? Here's How It Actually Works

The Federal Rule That Makes This Possible

Age-restricted 55+ communities operate under the federal Housing for Older Persons Act (HOPA), an exemption to the Fair Housing Act's familial status protections. HOPA requires that at least 80% of occupied units have at least one resident aged 55 or older — it does not require that every resident, or every member of a household, be 55+.

In practice, this means a couple where one spouse is 55+ and the other is younger can typically buy and live in a HOPA-qualifying community, as long as the qualifying (55+) spouse is a permanent resident of the unit. The community counts that household toward its 80% threshold based on the older resident.

What Varies by Community

• Minimum age for the younger spouse. Many communities set a minimum age (commonly somewhere between 18 and 45) for a younger co-resident spouse or partner, even though HOPA itself does not mandate a specific younger-spouse minimum. This minimum is set by the individual community's governing documents, not federal law.
• Verification and documentation. Communities typically require proof of age (driver's license, birth certificate) for at least one resident per unit at move-in, and some re-verify periodically.
• Adult children or other household members. Rules on adult children living in the home, and any age minimums that apply to them, vary significantly — some communities are stricter than others about non-spouse occupants under 55. This comes up most often when an adult child moves in to care for an aging parent; see our dedicated guide on adult-child caregiver rules for how that specific situation works.

What to Ask Before You Buy

• What is the minimum age for a non-qualifying spouse or partner, specifically as written in this community's governing documents (not just the general HOPA rule)?
• Does the community's 80/20 compliance policy require re-verification, and what happens if the older spouse passes away or the couple separates?
• Are there restrictions on how long a younger spouse can occupy the home alone if the 55+ resident is temporarily away (for medical care, extended travel, etc.)?