Quick Answer
A multigenerational home in Eagle, Idaho can work exceptionally well when the floor plan is designed around how each generation will actually live. Separate bedrooms and bathrooms, flexible kitchen space, wider living areas, thoughtful storage, accessible entrances, and future-ready utilities can make one home feel comfortable rather than crowded.
Summary
A recent home-design meeting in Eagle showed just how much thought can go into creating a home for multiple generations. The family wanted independent living space for an older parent while preserving connection with the rest of the household. Instead of simply adding square footage, the conversation focused on doors, bathrooms, kitchen functionality, storage, windows, patios, appliances, and future flexibility.
That approach matters in the Treasure Valley, where families may want a home that serves them for many different seasons of life. The U.S. Census Bureau estimates Eagle’s population reached 34,658 in 2025, with 24.3% of residents age 65 or older.
A multigenerational home starts with the people, not the floor plan
The first question should be simple: How will the home actually be lived in?
In this Eagle project, one side of the home was being planned around an older parent, while other family members would occupy another portion of the house. A future adult child could also use the upstairs space.
That immediately changes how the floor plan should function.
For example, a bathroom might technically serve one bedroom, but keeping it accessible from the hallway can make it more useful when guests arrive. Adding a second door can also allow someone staying in the bedroom to access the bathroom without walking through another person’s living space.
Ultimately, these seemingly small decisions can have a significant effect on privacy and convenience.
According to the National Association of REALTORS®, 14% of buyers in its 2026 generational trends report purchased a multigenerational home. Caring for aging parents, cost savings, and adult children moving back home were among the leading reasons.
More square footage is not always the answer
The family in this project considered expanding an existing living area by several feet. However, the goal wasn’t simply to make the home bigger.
The additional space would create room for a larger living area, dining space, entertaining, and a more functional kitchen. The discussion also considered whether the expansion should be two feet or four feet in one direction and how much additional space should be created elsewhere.
That distinction is important.
A good multigenerational home in Eagle, Idaho should use additional square footage intentionally. A few extra feet in the right location can improve furniture placement, circulation, storage, and accessibility far more than adding space where it is rarely used.
Moreover, the builder noted that structural changes can sometimes be easier to communicate and execute than very small, highly specific cabinet modifications. Clear plans matter because every change has to move through drafting, engineering, cabinetry, construction, and inspection.
Kitchens need to be planned for today and tomorrow
One of the most interesting parts of the discussion involved the secondary kitchen.
The family wanted the older parent to have a full kitchen, including the possibility of a future range or cooktop. However, the builder explained that multiple cooking appliances can involve additional approval considerations.
That is where future planning becomes valuable.
Rather than assuming every future modification will be approved, the team discussed preparing electrical and gas infrastructure in advance where appropriate. Cabinet layouts could also be designed so that future appliance changes would be easier.
The City of Eagle Building Division explains that permits are required for residential construction, additions, alterations, equipment, and other building work, while plan review and inspections help ensure projects comply with adopted codes.
Similarly, Idaho has adopted statewide building and construction codes, including residential, electrical, mechanical, and energy requirements. Idaho building construction codes
Therefore, homeowners should confirm proposed changes with the appropriate builder, designer, and local officials instead of assuming a future modification will automatically be permitted.
Storage and accessibility deserve equal attention
A multigenerational design is about much more than bedrooms.
The family discussed full-height pantry cabinets, pull-out shelves, drawers, a broom closet, refrigerator size, dishwasher placement, and even the configuration of the kitchen sink.
These details may sound minor. Instead, they become important when someone is using the space every day.
Pull-out shelves can reduce bending and reaching. Convenient drawers can make frequently used items easier to access. A well-placed bathroom door can improve privacy. Meanwhile, a larger living area can create room for mobility equipment, comfortable seating, or family gatherings.
For families thinking about aging in place, these considerations are worth addressing before construction rather than after the home is finished.
The Realtor.com multigenerational housing research found that nearly 4 million owner-occupied U.S. households were multigenerational in 2024, with the typical household sharing a four-bedroom home.
Design for connection without sacrificing independence
The best multigenerational homes create both togetherness and separation.
A parent can have a comfortable private living area while still being close enough to participate in family life. Guests can visit without walking through private bedrooms. Children and grandchildren can have their own spaces. Finally, shared areas can remain large enough for everyone to gather.
That balance is especially relevant in Eagle, where housing development continues to evolve while the community maintains a strong preference for residential neighborhoods and larger homes. Recent reporting from BoiseDev’s Eagle housing coverage highlights the demand for larger properties and custom homes in the Eagle foothills and broader Treasure Valley.
If you’re considering new construction, it also helps to understand the process before making design decisions. Why an Agent Is Essential When Buying a Newly Built Home explains why professional representation can matter even when purchasing directly from a builder.
Likewise, major moves often involve more than floor plans and pricing. How Real Estate Agents Take the Fear Out of Moving offers another perspective on navigating the transition.
Think beyond today’s household
A home designed for three generations today may have a completely different purpose ten years from now.
An older parent may eventually need more accessibility. An adult child may move out. Grandchildren may visit frequently. A bedroom could become an office. A secondary kitchen could become valuable for entertaining or extended family.
Consequently, flexibility can be one of the most valuable features in a new home.
The U.S. Census Bureau’s Eagle QuickFacts show that Eagle’s population has grown substantially since 2010, reinforcing how quickly the community continues to change.
For homeowners approaching retirement, the question becomes even more personal: Does Your Current Home Fit Your Retirement Plans? Planning ahead can help determine whether the next home should prioritize stairs, bedrooms, maintenance, privacy, or accessibility.
Bottom Line
A successful multigenerational home isn’t simply a large house with extra bedrooms. It is a home designed around real people, real routines, and future possibilities.
The Eagle project discussed in this meeting is a good example. The family considered everything from bathroom access and kitchen appliances to wall dimensions, storage, windows, patios, and future flexibility.
Ultimately, thoughtful planning can turn a complicated family living arrangement into a home that feels natural for everyone.
For buyers considering Eagle or another Treasure Valley community, the smartest first step is to define how the household needs to function now—and how those needs could change later.
Frequently Asked Questions (FAQs)
What is a multigenerational home?
A multigenerational home is a property designed or used by multiple generations of the same family, such as parents, adult children, grandparents, or grandchildren. The arrangement can range from separate living areas within one house to homes with private entrances, kitchens, bedrooms, and bathrooms. In Eagle, a multigenerational home may be particularly useful for families who want to keep relatives nearby while maintaining some independence. The key is flexibility. A good layout should allow family members to spend time together while also giving each household member a comfortable place to retreat.
Is Eagle, Idaho a good place for a multigenerational home?
Yes, Eagle can be a strong fit for families looking for additional space and a long-term home. Eagle has grown significantly over the past decade, and its housing market includes larger properties and homes designed around family living. However, the right property depends on the family’s priorities. Buyers should consider proximity to schools, medical services, shopping, recreation, transportation, and the specific needs of older family members. A home that looks ideal on paper may not work well if its layout requires too many stairs or separates family members more than intended.
Can a multigenerational home have a separate kitchen?
It can, but homeowners should confirm what is permitted for the specific property and jurisdiction. In the Eagle project discussed in the transcript, the family wanted a full kitchen for an older parent, including the possibility of adding additional cooking appliances in the future. The builder discussed planning electrical and gas infrastructure ahead of time while recognizing that appliance configurations and approvals could create limitations. Eagle requires permits for many residential alterations and construction activities, so proposed kitchen changes should be reviewed with the builder and appropriate local officials before construction.
How much extra space does a multigenerational home need?
There is no universal square-footage requirement because the ideal size depends on how many people will live there and how independently they need to function. In practice, the layout can matter more than the total square footage. A few additional feet in a living room, wider circulation areas, an accessible bathroom, or better storage may provide more practical value than unused space elsewhere. Realtor.com research found that the typical multigenerational owner-occupied household in 2024 included five people sharing a four-bedroom home, although individual needs vary considerably.
Should I plan a multigenerational home differently if my parents may move in later?
Yes, planning ahead can make future changes much easier. Even if parents will not move in immediately, buyers can consider a main-level bedroom, nearby bathroom, minimal stairs, wider pathways, flexible living space, and infrastructure that could support future changes. The goal is not necessarily to build everything today. Instead, it is to identify improvements that are difficult or expensive to add later. A knowledgeable real estate professional can also help evaluate whether a home’s layout will remain practical as household needs change. For homeowners approaching retirement, reviewing whether the current home supports future lifestyle needs can be just as important as considering today’s space requirements.
Bottom Line
Multigenerational living works best when the home is designed around independence, connection, accessibility, and flexibility. In Eagle, families considering new construction or a move should evaluate not only bedrooms and square footage, but also how bathrooms, kitchens, storage, entrances, and shared spaces will function over time.
