Budget Breakdown: They DIYed a $212K ADU—and Loved It So Much That They Moved Right In

A Seattle couple built their own backyard house with a city-sponsored design—and then rented out their old home on the property to friends.

A Seattle couple built their own backyard house with a city-sponsored design—and then rented out their old home on the property to friends.
A Seattle couple built their own backyard house with a city-sponsored design—and then rented out their old home on the property to friends.

When Chris Cloud and Adrianne "Adi" Braun purchased a small house in Seattle’s Beacon Hill neighborhood five years ago, they were particularly excited about its large back lot, which they had been eyeing from the start.

The property is adjacent to a right-of-way for large electrical towers that cuts diagonally through the neighborhood, and the elongated backyard had plenty of space for a detached accessory dwelling unit (DADU), as they’re known in Seattle—with room to spare for a garden and play area for their miniature schnauzer, Boris.

At 700 square feet, Chris and Ady's cottage had to make economical use of space—like the bar-height dining table doubling as a cooking countertop.
At 700 square feet, Chris and Ady's cottage had to make economical use of space—like the bar-height dining table doubling as a cooking countertop.

The couple’s budget was limited. Hiring an architect to design a dwelling from scratch seemed out of reach, and they dreaded getting caught up in permitting red tape. But then they learned about a City of Seattle pilot program that provides the public with plans for 10 different pre-certified dwellings designed by local architecture firms.

"We eagerly waited for those to be released instead of going with a custom design," Chris recalls.

During the pandemic, Chris, who had previously worked in architectural metal fabrication, dove into remodeling the existing house, which was built in 1948 and needed work. As he gained construction experience and confidence, Chris began to realize he and his wife could actually afford a DADU—if he built it.

Adi and Chris chose an L-shaped, pre-permitted plan by Cast Architecture with extensive glass, and resisted two-story options to fit in better with their neighborhood.
Adi and Chris chose an L-shaped, pre-permitted plan by Cast Architecture with extensive glass, and resisted two-story options to fit in better with their neighborhood.

"It was a learning curve. It still is," he says. "You’re never not discovering new things and easier ways to do stuff." But by diving into DIY and using an existing city-approved design, the couple were able to build a 700-square-foot home by Seattle’s Cast Architecture for $211,522.

$8,934
Planning & Permitting

$12,148
Electrical

$7,339
Drywall

$2,098
Paint

$1,114
Drainage

$4,000
Doors

$6,304
Appliances

$2,742
Tile

$2,335
Steel Fence

$9,133
Concrete Wall

$21,492
Foundation

$20,926
Framing

$3,674
HVAC

$25,076
Siding & Building Envelope

$4,464
Excavation

$9,197
Interior Finishes

$10,226
Kitchen Cabinets & Countertops

$5,020
Insulation

$17,152
Plumbing

$15,861
Roof

$13,335
Windows

$907
Site Costs

$2,976
Landscaping

$5,069
Sewer Connection

Grand Total: $211,522

Adi and Chris liked the result so much that they decided to move into the DADU themselves, and rent their original house to friends. "It’s great to be able to give other people a nice place to live," Adi says. "And it creates a little bit of community. It feels good." Chris says the neighbors even helped them weed the yard last week.

The couple's living room, anchored by a favorite old leather sofa, stays cool with the help of a ceiling fan and mini-split heating and cooling unit.
The couple's living room, anchored by a favorite old leather sofa, stays cool with the help of a ceiling fan and mini-split heating and cooling unit.

See the full story on Dwell.com: Budget Breakdown: They DIYed a $212K ADU—and Loved It So Much That They Moved Right In
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