AIA Seattle Self-Guided ADU Tour

AIA Seattle is pleased to kick off our 2019 ADU Tour, a self-guided look at innovative designs, creative interiors, and a chance to speak directly with the architects.


Saturday, June 15
11:00 am – 4:00 pm


ADUs on the Tour



Download: Quick reference brochure of tour sites


1. Crown Hill DADU
626 NW 75th St., Seattle, WA 98117

Contemporary two-level unit with a flexible space on the main level that includes a sleeping area, office and full bathroom with laundry—convertible for aging in place.

More info



2. Smith-Gillman DADU
7307 8th Ave NW, Seattle, WA 98117

A single-story DADU designed to allow a retired couple to age in place while sharing the property with their children and grandchildren.

More info



3. Tangletown Backyard Cottage
5623 Kirkwood Place N., Seattle, WA 98103
Entrance to the cottage is from the alley located between Kirkwood Pl N and Keystone Pl N.

With their children grown, the cottage owners wanted to downsize from their beautiful-but-too-large house but didn’t want to leave their neighborhood and friends. The cottage takes advantage of every available square inch of the allowable 800 sq. ft. while working with limited opportunities for light and views.

More info


4. Interlaken DADU
2441 E Interlaken Blvd. , Seattle, WA 98112
Parking is very limited in this neighborhood. Guests may need to park at least a couple of blocks away and walk.  The property is on a thru lot and can be accessed from the rear, off Interlaken Place East, as well as from the front.  This property includes a number of steep steps.

Somewhat private DADU over a one-car garage, nestled within a park-like environment. The open studio apartment is suitable for visiting out of town family and friends and short term rental tenants while offering a potential living arrangement for future retirees who currently reside in the primary home.

More info


5. Madison Valley Garden Apartment
220 Martin Luther King Jr. Way E., Seattle, WA 98112

An AADU originally built to accommodate parents of the homeowners who come for extended stays, with an eye to the future if one parents needs to move in permanently. Green design highlights include a solar panel array, AADU and main house built to energy standards 30% higher than code and a large rain garden.

More info


6. 335 DADU
335 15th Ave, Seattle, WA 98122

Created specifically as an investment rental property to maximize the potential of the small single-family lot, this new two-bedroom DADU responds to a combination of design goals, site constraints and code restrictions.

More info



7. West Seattle Backyard Box
5123 SW Admiral Way , Seattle, WA 98116
Enter through the side gate, which is along the west or right side of the house by the driveway.

This DADU serves as a backyard office/studio for the homeowner who works as a professional photographer and also serves as an extra bedroom for visiting family.  The design is a variation on the Backyard Box, which won Most Sustainable and Best of Show in the Method Homes/City of Seattle Backyard Cottage Design Competition in 2010.

More info


8. Stone Solar Studio
7501 7th Place SW, Seattle, WA 98106

A 670 square foot, affordable NODE prefab one-bedroom studio that is Seattle’s first DADU to achieve the International Living Future Institute’s zero energy certification. A south-facing solar roof provides all of the energy for the studio and the main house. The client wanted a second unit to create an additional rental income that would be self-sustaining and affordable, generating economic and environmental productivity.

More info


Download: Info sheets for all projects

Download: Info sheet on ADU policy in Seattle


Tour Questions: Kirsten Smith, 206-708-3199,

Take the ADU Class – learn about creating an AADU or DADU.