Why Gen X Is Quietly Driving the Multigenerational Housing Trend
Date Posted: May 26, 2026
Posted In: Discussion, Ideas,
by Susan Sierra, Founder, The Sierra Group
For years, most housing conversations have revolved around millennials trying to buy their first home or Gen Z struggling with affordability. But one of the biggest forces reshaping the housing market right now is actually Generation X.
Gen X has quietly become the “middle generation” carrying pressure from both directions. Many are helping aging parents while also supporting adult children facing higher housing costs, elevated interest rates, childcare expenses, and a tougher path to ownership than previous generations experienced. According to recent reporting from Investopedia, many Gen X households are cutting back financially because of the growing cost of supporting multiple generations at once.
That pressure is helping fuel a major rise in multigenerational housing — and for investors, this is more than just a demographic trend. It is starting to influence buyer behavior, renovation decisions, rental strategies, and long-term property demand in very real ways.
Recent data highlighted by MarketWatch shows millions of Americans are increasingly looking for homes that can comfortably accommodate multiple generations under one roof. Some families are combining finances to buy larger or more functional homes. Others are trying to create flexible living situations that allow aging parents, adult children, or extended family members to stay nearby while still maintaining some degree of independence.
That shift is changing what buyers value in a property.
For years, many people evaluated homes almost entirely through the lens of bedroom count, square footage, and cosmetic updates. Today, flexibility is becoming a much bigger part of the equation. Buyers are increasingly drawn to homes with finished lower levels, additional bathrooms, separate entrances, bonus rooms, second living areas, or layouts that allow some separation between generations living together.
This is one reason St. Louis is actually very well positioned for this trend compared to many newer Sunbelt markets built around tighter lots and more standardized floor plans.
A lot of St. Louis housing stock naturally lends itself to multigenerational living in ways many people overlook. Across both the city and inner-ring suburbs, there are countless properties with:
- full basements
- walkout lower levels
- detached garages
- oversized lots
- rear access
- bonus sleeping areas
- finished lower-level family rooms
- extra bathrooms
- and flexible spaces that can evolve over time
In many parts of the country, creating additional living flexibility often requires major additions or expensive ADU construction. In St. Louis, a surprising amount of that functionality already exists within the housing stock. That matters for investors.
A detached garage on a larger South City lot may eventually support an ADU conversation if zoning evolves further. A ranch home in South County with a finished basement and second bathroom may suddenly appeal to buyers caring for aging parents. A brick duplex in neighborhoods like Tower Grove South or Dogtown may attract buyers looking to offset housing costs while still keeping family nearby.
Even many older North County properties — especially homes with large lots, tuck-under garages, and finished lower levels — fit this trend better than people realize. The functionality is already there. The market is simply beginning to value it differently. That creates several important implications for investors moving forward.
First, functional layouts may begin outperforming purely cosmetic upgrades in certain segments of the market. Investors who focus only on trendy finishes may overlook what actually matters to many buyers today: adaptability. A property with an additional living space, lower-level bathroom, or semi-private area for extended family may command stronger long-term demand than a prettier home with less usable flexibility.
Second, duplexes and small multifamily properties may continue seeing increased interest from both investors and owner-occupants. Many families want proximity without complete cohabitation. A duplex, side-by-side unit, or property with ADU potential can create a middle ground that allows families to live close together while maintaining privacy.
That is especially relevant in St. Louis because the market still offers relatively attainable pricing compared to many major metros. In some coastal cities, multigenerational living is becoming necessary simply because housing is unaffordable. In St. Louis, families can sometimes use multigenerational strategies more proactively — to build wealth, reduce childcare costs, help adult children buy earlier, or care for parents without completely sacrificing privacy.
This trend also overlaps with the growing popularity of hybrid rental strategies. Some investors are combining long-term rental stability with midterm rental flexibility by utilizing lower levels, guest suites, or secondary spaces for furnished rentals. In markets with strong healthcare and education employment like St. Louis, that flexibility can create additional income potential while still maintaining stability on part of the property.
The bigger takeaway here is that housing is increasingly becoming a shared economic strategy instead of a purely individual milestone. Families are adapting to affordability pressures by pooling resources, combining households, and prioritizing flexibility over traditional housing expectations.
That shift could have long-term effects on:
- small multifamily demand
- renovation trends
- ADU popularity
- suburban development
- zoning conversations
- and investor acquisition strategies
The investors who recognize this early may have an advantage, especially in markets like St. Louis where adaptable housing stock already exists at relatively attainable price points.
A lot of real estate trends get overhyped. This one feels different because it is being driven by necessity, economics, and demographic reality all at the same time. Those are usually the trends that last.