Multigenerational Homes, Mountain Architecture, & Your Family

a happy family sits on a small hill in front of a mountain home. grandparents, grand kids, and mom and dad are all represented. They are happy and this stresses the importance of multigenerational homes.

Multigenerational homes are on the rise and stand at such an interesting point in time culturally.

So many of us are transient in the digital age, making life full of stress and strain when it comes to understanding our place in the world (and sharing that place with our loved ones).

Not too many of us can point to a place on the map, say “That’s where I’m from,” while still having a familial presence at that dot on the map.

The modern living space – its design, functionality, style, capabilities – has gone under the microscope since the pandemic and with so many people experiencing shutdowns and restricted living, it became abundantly clear that wherever you live, your home should absolutely accommodate your lifestyle and needs in a comfortable, enriching, and enduring way.

In this article, we’ll explore the renewed interest in multigenerational homes and their many benefits from financial to experiential.

What Makes a Home “Multigenerational”?

A multigenerational home houses multiple generations under one roof and in some cases, many roofs on one property. This might mean grandparents, parents, and adult children sharing a single large home, or it could look like a main residence with a detached accessory dwelling unit for aging parents or grown children establishing independence.

In mountain markets like Big Sky, Lake Tahoe, and Idaho’s resort communities, I see these homes filled with families taking advantage of larger lots and the natural privacy that mountain terrain provides. As an architect with a lifelong passion for mountain architecture, I’ve learned the goal isn’t just adding square footage to accommodate more people. It’s creating a home where multiple generations can thrive together without sacrificing the independence that makes shared living sustainable long-term.

The Financial Case for Mountain-Style Multigenerational Homes

When you think about where mountain homes came from in our history, practically speaking, they had to accommodate a lot of people! When the wagons stopped, it was easier and faster to build one home instead of three!

Beyond its humble beginnings, mountain real estate does come with a premium price tage because of this “practicality.” In markets like Big Sky Montana, Lake Tahoe, or Grand Targhee, lot costs alone can stretch budgets before a single post goes vertical. I’ve watched families struggle with this reality for years – wanting mountain proximity but facing impossible math when purchasing separate properties.

a family including all ages sits around a table doing some financial planning with respect to building multigenerational homes they could all live in together. The granddaughter has a jar in her hands that says "save."

Multigenerational homes solve this problem efficiently: families share construction costs among members who would otherwise be buying individual properties in the same expensive market. When two or three generations pool resources, that $3 to $10M mountain home becomes attainable. 

Also, with property taxes, utilities, and ongoing maintenance costs split multiple ways, mountain living becomes financially viable for families who want proximity without separate mortgages.

That said – financial benefits extend well beyond construction cost sharing. 

When aging parents move into a well-designed multigenerational home, they’re freed from the month-to-month pressure of maintaining their own residence. Social Security checks and retirement savings can shift from covering housing expenses to discretionary spending such as travel, hobbies, and time with grandchildren. 

For caregivers, you’ve got the confidence of dignity but again, the practicality of not having to drive hours in a blizzard if there’s ever an emergency.

This kind of relief translates directly into quality of life, removing stress while preserving dignity and independence.

Mountain Architecture’s Natural Advantages for Multigenerational Living

Mountain properties offer inherent design advantages that make multigenerational living genuinely comfortable. 

Unlike an urban area where you might only be able to build up (requiring, stairs and elevators, mountain environments allow you to build out

That said, I start with the land itself when working with families on these projects. We’ll visit a site and imagine what could be. These site visits lend themselves to photographs and the earliest sketches of what the final space would look like.

In terms of design driving practicality, timber framing and post-and-beam just beg for higher ceilings and vaulted main spaces where the experience is anything but cramped.

This core design element is what makes multigenerational mountain homes work.

When lots aren’t flat, sloped spaces drive some amazing designs and innovations. Walkout basements become full living suites with their own entrances, natural light, and connection to grade-level patios (or spa-like features on their own level)! Above-garage apartments take advantage of mountain views while maintaining separation from the main house. These aren’t dark basement apartments. They’re legitimate living spaces that work because mountain topography allows for them naturally. In other words, imagine your home was built on a hillside in a similar fashion to stadium seating.

Also, the material nature of mountain design welcomes age into the living narrative.

Stone is the oldest member of the family. Wood, perhaps the middle-aged material, and then let’s say smart features used intuitively are the youngsters.

Without forcing things, a mountain home becomes a multigenerational home where people feel at peace because there’s multigenrational materials used as core features.

Designing for Different Generations’ Needs

Let’s unpack multigenerational living and design practicality a little better. 

Successful multigenerational homes require careful thinking that addresses each generation’s requirements while ensuring spatial autonomy. 

a man is seen wheeling down a wide hallway in a mountain home. This stresses the importance of accessibility features in the multigenerational homes we design at enduring Design Architecture.

For aging parents, accessibility features should be integrated elegantly, not tacked on as afterthoughts. I design ground-floor primary suites that eliminate stairs entirely. Walk-in showers with built-in seating and grab bars provide safety without institutional aesthetics. Wider doorways and wider hallways accommodate walkers or wheelchairs if needed in the future. Exterior ramps can be designed as integrated landscape features rather than obvious modifications. That interstitial space currently used for storage? That’s tomorrow’s foundation for an elevator if needed.

En suite kitchenettes in parent suites offer crucial autonomy. A small sink, under-counter refrigerator, microwave, and coffee maker mean aging parents can prepare simple meals on their own schedule without depending on the main kitchen’s activity. Similarly, I often include a small stackable washer and dryer in or near the parent suite. These aren’t just convenience features; they’re dignity features that allow aging family members to maintain the rhythms of independent life while having family nearby if needed.

For adult children, especially those in their twenties or thirties, separate entrances transform the living dynamic entirely. A side door or walkout basement access means coming and going without crossing through family spaces.

Throughout my design process, flexibility remains paramount. Today’s adult children’s suite becomes tomorrow’s caretaker apartment. The ground-floor parent suite might someday become a teen hangout suite. 

Regardless, I work to ensure homes can adapt without major renovations as family dynamics inevitably evolve.

The Emotional Benefits of Multigenerational Mountain Homes

Outside of the space itself, building multigenerational homes reestablishes something lost in the American fabric – but essential to it.

My grandfather’s cabin in Montana taught me what homes can be when they’re designed as gathering places first. Built on simple materials and a straightforward design, it became the center point for our family for decades. 

The place where cousins became lifelong friends, where stories passed between generations around evening fires, where being together mattered more than individual schedules. That cabin is the reason I became an architect focused on mountain properties.

Experiencing legacy and tradition like this deepens confidence in life in ways that surprise people. 

a happy family including toddlers, parents, and grandparents walk hand in hand in a field. a dark sky is behind them backing into a mountain range. This type of bonding experience comes from families who live together in multigenerational homes.

Mountain-style multigenerational homes create common experiences across age gaps that might otherwise feel unbridgeable.

These types of homes become a member of the family. They’re typically passed on and never sold. Belonging is inherited, and in this day and age, that’s something that money can’t really buy.

Planning Your Multigenerational Mountain Home

Because of their special functions, multigenerational homes require more upfront planning than traditional single-family residences but deliver something that is sought after – with few attempting to achieve.  

For families considering multigenerational mountain homes in Idaho, Montana, or anywhere the land might call for one, I offer the Project Kickstarter assessment where you can see the potential of your lot and translate that into designs, costs, and timelines. 

In the end, whether you’re planning for aging parents, adult children establishing independence, or simply creating a mountain gathering place that will serve your family for generations, the goal remains the same: designing homes where privacy and connection coexist naturally, where multiple generations can thrive without compromise, and where the mountain setting itself becomes part of what holds the family together.Your multigenerational mountain home should feel inevitable. Like it was always meant to exist in that exact place, serving your family in that exact way. That kind of clarity requires conversation, planning, and an architect who understands that these homes aren’t just construction projects but the physical foundation for how your family will live together for decades to come.

If this sounds like a conversation you’d like to have, I’d love to hear from you.

a chalet style home is set back from a rocky hillside. we see a swingset in the yard and other exterior gathering spaces. These types of features are the signatures of wel built multigenerational homes.