This Napa Family’s $226K ADU Repurposes Skateboard Wheels and Vineyard Stakes

Architects Maddie and Ryan Chandler pulled together their 500-square-foot backyard home using a (mostly) upcycled palette.
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The little house with the funny angles, where the Chandlers live with their two kids and a dog, was once a garage, built in the 1950s in St. Helena, California, in what was once a walnut orchard.

In a way, the space in and around their home, a 500-square-foot, rusty-metal accessory dwelling unit (ADU), is an evolving monument to was-onces and used-to-bes. The fountain used to be planter boxes. The rain screen was once a bunch of stakes in a friend’s vineyard. And the rollers that slide open a storage space in the kitchen? The Chandlers scored those at an estate sale—they were skateboard wheels.

Self-described small-house advocates Ryan and Maddie Chandler are living up to that title with the home they made for their family in Napa Valley, an ADU that joins a primary home they purchased and rent out.

Self-described small-house advocates Ryan and Maddie Chandler are living up to that title with the home they made for their family in Napa Valley, an ADU that joins a primary home they purchased and rent out.

Ryan and Maddie Chandler are the two halves of Chandler Workshop Architects, a firm with a handful of Northern California projects to its name. In 2017, having had their fill of city living, the couple decamped from San Francisco for Ryan’s hometown of St. Helena to be closer to his family and start their firm. They wound up buying a home next to the one that he grew up in, where his mom, Mirja, still lives.

The landscaped yard with multiple "living areas" provides outdoor relief, made possible by the Napa Valley climate.

The landscaped yard with multiple "living areas" provides outdoor relief, made possible by the Napa Valley climate.


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The couple, both architects, and their youngest child surround the kitchen island, which is canted to maximize interior space.

The couple, both architects, and their youngest child surround the kitchen island, which is canted to maximize interior space.

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This Napa Family’s $226K ADU Repurposes Skateboard Wheels and Vineyard Stakes - Photo 4 of 11 -

Soon the Chandlers began wresting something fit for human habitation out of a space originally intended for machines. They used the garage’s existing footprint, which spared them the hassle and expense of new sewer hookups and setback requirements. But it meant a much tighter space than the 1,200-square-foot limit for ADUs in California. "Most people don’t know that they could do a lot more with less," Maddie says.

The look of the ADU flowed from those constraints. Its primary wall has a rakish angle that gives more space to the lofted bedroom and the bathroom. The motif reappears across the property: in the entry fin, the office space across the yard, and the steel wall separating the yards of the ADU from the property’s main house, which Maddie and Ryan rent out to a family. Thanks to the Napa Valley climate, certain features can go outside: A dining table sits under a trellis, and a graveled area, with the right arrangement of chairs around a firepit, yields a sort of living room.

The Chandlers’ office has a blackened metal wall for posting ideas and for affixing magnets, which their kids like to play with. In keeping with the angle motif, a slice is taken out of one corner where a window meets the building’s edge.

The Chandlers’ office has a blackened metal wall for posting ideas and for affixing magnets, which their kids like to play with. In keeping with the angle motif, a slice is taken out of one corner where a window meets the building’s edge.

As with the rest of the interiors, the bathroom is clad in maple plywood. Its severe angles echo the steel fins of the home’s entry.

As with the rest of the interiors, the bathroom is clad in maple plywood. Its severe angles echo the steel fins of the home’s entry.

In all, the ADU and landscaping came to $225,850. (Ryan estimates their design fee for the structure would have been between $25,000 and $35,000 and their labor $270,000.) The office, clad in reclaimed metal siding, cost another $35,000. The couple splurged in a few places—the FritsJurgens pivot hinge for the front door, for example—but by doing much of the work themselves, Ryan, an amateur machinist, estimates they saved around $300,000. And that’s to say nothing of what they kept in their pockets by using repurposed materials.

$5,000
Site Work
$2,000
Foundation
$30,000
Structural
$25,000
Wall Finishes
$5,000
Flooring
$20,000
Roofing/Siding
$750
Hardware
$7,000
Electrical
$6,500
Plumbing
$4,200
HVAC
$35,000
Landscaping
$3,000
Kitchen & Bath Fixtures
$1,000
Lighting
$18,000
Cabinetry
$1,400
Countertops
$6,000
Appliances
$5,000
Windows & Glazing
$5,500
Doors
$2,000
Millwork
$8,500
Metalwork
$5,500
Furnishings & Decor
$5,500
Permitting
$20,000
Labor
$2,500
Demolition
$1,500
Waste Removal


Grand Total: $225,850
The home, positioned on empty yard space next to the lot’s primary residence, is largely made from secondhand scraps. "Reclaiming materials makes financial sense, and it makes environmental sense—for us, that’s huge," Maddie says, referencing the metal, wood, and more bits and pieces they repurposed to build the ADU.

The home, positioned on empty yard space next to the lot’s primary residence, is largely made from secondhand scraps. "Reclaiming materials makes financial sense, and it makes environmental sense—for us, that’s huge," Maddie says, referencing the metal, wood, and more bits and pieces they repurposed to build the ADU.

"A well-designed room can be smaller than you think. People do these huge rooms, and the only thing you can do is fill them up."

—Ryan Chandler, architect and Resident

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That was an aesthetic choice and a governing ethic. Across the yard from the ADU, in a cluttered workshop that used to be a barn, Ryan gestures to a sign that reads, It’s Not Hoarding If Your Shit Is Cool. "My motto," he says. He and Maddie are standing next to a mechanic’s lift, on which sits, preening, a slick old Datsun 240Z, which is about as cool as shit gets.

"I have a lot of toys," Ryan goes on, "but they’re all vintage. And I think it’s like our house. It’s all rusty and reclaimed." What it’s all about in either case, he says, is "keeping these things alive."

The office’s exterior is outfitted in corrugated metal siding provided by Ryan’s grandfather.

The office’s exterior is outfitted in corrugated metal siding provided by Ryan’s grandfather.

The firepit is made from an old water tank taken from a friend’s property and is surrounded by woven-resin chairs from CO9 Design.

The firepit is made from an old water tank taken from a friend’s property and is surrounded by woven-resin chairs from CO9 Design.

This Napa Family’s $226K ADU Repurposes Skateboard Wheels and Vineyard Stakes - Photo 11 of 11 -

Project Credits:

Architect of Record: ChandlerWorkshop Architects Inc.

Structural Engineering: Williams Associates Engineering

Cabinetry: Spring Mountain Case Co.

Landscaping: ChandlerWorkshop Architects Inc.

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