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The 80/20 Rule for 55+ Communities in Florida: What Buyers Should Know

By Semiramis Bergolla, REALTOR®. Published September 25, 2026.

Most people assume a 55+ community means every resident must be 55 or older. Under federal fair housing law the rule is looser than that, and the difference matters if you are buying, if an adult child might move in with you, or if you may one day sell to someone younger. This guide explains the 80/20 rule in plain terms and lists what to ask an association before you commit. It is general information, not legal advice.

Wading birds at the Viera Wetlands in Viera, Florida
Photo: Rusty Clark

What the rule says

Federal fair housing law protects families with children from housing discrimination. It exempts housing intended and operated for people 55 or older, and 24 CFR 100.304 sets out that exemption. A community has to meet several conditions to use it. The one people call the 80/20 rule comes from 24 CFR 100.305: at least 80 percent of occupied units must be occupied by at least one person who is 55 or older.

That leaves up to 20 percent of occupied units that can be occupied only by younger people. It also means a single resident who is 55 or older is enough to count a household toward the 80 percent.

How the count works

The percentage is measured against occupied units only. Empty units are left out of the calculation. A unit that is temporarily vacant still counts as occupied if its main occupant lived there in the past year and plans to return from time to time.

Some younger residents do not count against a community. The regulation lets a community keep its 80 percent standing even when it includes units occupied by certain on-site employees under 55 and their families, and units occupied by people under 55 who provide a reasonable accommodation to a disabled resident.

It takes more than the number

A community also has to publish and follow policies that show it intends to be housing for people 55 and older, and it has to verify who lives there. Under 24 CFR 100.307, a community sets up procedures for routinely determining the occupancy of each unit. Age can be shown with documents such as a driver's license, birth certificate, or passport, or with a signed certification from a household member who is 18 or older. Occupancy information must be updated at least once every two years.

This is why an association may ask you for proof of age when you buy, and why a community that ignores its own procedures can put its status at risk.

What this means when you are buying

The federal rule is a floor, and each community writes its own rules on top of it. Some require every owner to be 55 or older. Others follow the 80/20 standard more closely. Rules on adult children, grandchildren who stay for a long visit, a younger spouse, and inheritance vary, so the governing documents matter more than the label on the entrance sign.

Your own future sale matters too. Whoever buys from you will usually have to qualify under the same rules, which can narrow the pool of buyers.

Questions to ask before you make an offer

Ask for the governing documents early, and get answers to these:

  • What are the age rules for owners, and where are they written?
  • Can someone under 55 live in the home, and for how long?
  • What happens if a co-owner or spouse who is 55 or older dies or moves out?
  • How does the community verify age, and when did it last update its occupancy records?
  • What are the rules on guests, grandchildren staying for the summer, and long visits?
  • Are there limits on renting, and who approves a buyer?

Have an attorney review the documents before you close.

How 55+ differs from 62+ and "active adult"

Housing for people 62 and older is a separate category with its own rules under 24 CFR 100.303. "Active adult" is often a marketing phrase and does not create an age restriction by itself. Many communities in Viera and elsewhere on the Space Coast are built around low-maintenance living and welcome buyers of any age, while others are formally age-restricted.

The 55+ communities guide and the Viera area page explain how to tell them apart. If the community is a condominium, the condo buying guide covers what else to ask.

Sources

Frequently Asked Questions

Can someone younger than 55 live in a 55+ community in Florida?

Sometimes. The federal rule allows up to 20 percent of occupied units to be occupied only by people under 55, but each community sets its own policy, and some are stricter. Read the governing documents before you assume a family member can move in.

Who checks residents’ ages?

The community does, under its own written procedures. Federal rules call for routine occupancy checks, with the information updated at least every two years.

Is a 55+ community the same as a 62+ community?

No. Housing for people 62 and older is a separate federal category with its own requirements.

Semiramis Bergolla, REALTOR®

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