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ADU Kits for Retirement and Vacation Homes in 2026


Maybe you feel like you want to downsize your home, or maybe you want a nice spot for your kids to stay when they visit. Perhaps you want a small vacation home on your rural property, or a craft studio in your backyard, or a, or a, or a…

The good news is that our prefab ADU kits are a great place to start for these smaller projects as you look to plan your retirement years, because they’re a bit Goldilocks in design: Not too big, not too small, and just right for your retirement or vacation builds.


ONE SMALL STRUCTURE that can evolve with you

Accessory dwelling units, or ADUs, are self-contained structures built on the same property as a main house. They’ve become a top pick on short-term rental sites like Airbnb, Vrbo, and Booking.com, which makes them a natural fit for vacation housing when family isn’t in town. 

The same building can change roles later. We often see clients starting their prefab ADU kit out as an office or guest home, then deciding later whether to keep it as-is or move in themselves, which would turn the ADU into retirement housing while the main house goes to family or a renter. It could also become a comfortable home for a caregiver down the road, or a designated space for hobbies. One structure, many chapters.

Modern two-story house with flat roof, large windows, wooden front porch, well-manicured lawn, and two chairs on the porch.
El Segundo Modern Rogue
A modern red cabin with large windows and a snow-covered roof sits in a snowy landscape, surrounded by bare trees under a clear blue sky.
Wyoming Stillwater Home

 

 


WHY A KIT Makes ADU Planning Easier

ADU planning can feel like a maze, but prefabricated housing can help clear the way a bit. Our kits arrive with pre-cut, pre-drilled, labeled framing lumber, plus sheathing, siding, and hardware. Standard materials include Douglas fir timbers, Andersen windows, and James Hardie siding, and prefab builds typically need 30% to 50% fewer framing hours than conventional construction. Many owners assemble smaller kits themselves, and if you’d rather hire help, our nationwide builder network can connect you with a trusted contractor.


SIX KITS Homeowners Gravitate Toward
A cozy modern wooden house with a dark metal roof, large windows, and a covered porch, surrounded by grass, trees, and a stream.The Rogue

Our most popular cabin kit offers two bedrooms and two bathrooms in 948 sq. ft., in Classic or Modern styles. The second bedroom can host grandkids today and a caregiver or home office later.

A modern small wooden house with large windows and a sloped black metal roof sits among green grass, bushes, and tall pine trees.The McKenzie

This one has a modern studio apartment feel in 720 sq. ft. with a compact 24′ x 30′ footprint. It’s a cozy choice for a guest cottage or a low-maintenance retirement home.

A small wooden cabin with a black metal roof sits in a grassy yard among shrubs and flowers, tall trees in the background.The Deschutes

With one bedroom, one bathroom, and 756 sq. ft., the Deschutes pairs an easy single-level layout with a heavy timber look.

A modern tiny house with white siding, black trim, and large square windows sits in a green yard with bushes and trees at dusk.The Sitka

This is our newest kit and our first built specifically as an ADU. It comes in five sizes, ranging between 405 and 864 sq. ft., in Classic and Modern styles. Picture a guest suite, artist studio, or creative workspace.

A modern two-story tiny house with floor-to-ceiling windows, wooden siding, and a black metal roof stands on a grassy lawn.The Stillwater

At 971 sq. ft., the Stillwater is clear-span, so there are no interior posts, and it features a loft and a soaring 25-foot vaulted ceiling. It began as a custom office in Oklahoma that clients loved so much we made it a standard model. The loft gives guests their own sleeping nook.

A modern A-frame cabin with black exterior and large windows sits in a lush forest, featuring a balcony and cozy outdoor seating.The Wallowa

Our A-frame cabin comes in 1,048 or 1,607 sq. ft. and is designed to work as a primary residence, vacation home, guest suite, or ADU.

COST: what a starting price really means

A starting price covers the kit. It doesn’t include the foundation, utilities, labor, or interior finishes. The final price also heavily depends on where you live. For example, in a lower cost of living state like North Carolina, a detached ADU typically lands between $120,000 and $220,000, while in a higher cost of living state like California, detached backyard homes commonly cost $250,000 to $400,000 or more. 


HAVE questions?

If you’re thinking about ADU kits for your property, request a free quote and our team will help you map out a design, a permitting path, and a realistic budget. You can also browse the full lineup on our ADU Kits page for inspiration.