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When you’re designing a house with an upper limit of 800 square feet, every inch counts. Beams must align perfectly, furniture must be measured to the inch, and even the smallest hidden space becomes storage. “It’s like a meticulous puzzle,” says local architect Webster Wilson, who created just such a house for Michele Greco, Mike Banker, and their 11-year-old daughter, Carly Jo. “You’re compressing everything you’d need for a 3,000-square-foot-house into a tight little envelope.”

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Downstairs, the ADU’s long, lean main room does a lot in its trim footprint.

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Smartly compact furnishings sit low to the ground.

Nudging up against Greco and Banker’s main house, a 1913 bungalow, this plot in inner Southeast Portland was previously the domain of a flock of chickens, all named after Greco’s late Italian aunts and grandmothers. After Francesca, Loretta, Carmella, and the others followed their namesakes into the Great Beyond, the homeowners started to reconsider their yard. They decided on an accessory dwelling unit (ADU), which would host guests for now, and ultimately become the couple’s primary residence.

“We like the idea of passive income, as well as a place for friends and family to stay,” says Banker. “And in the long term, we like the idea of living here and going to Mexico in the winter.” A contractor who owns True Blue Construction & Remodeling, Banker has collaborated with Wilson for years (he built Wilson’s own house); Greco, a professional interior stylist who owns Pine Street Design, rounded out the team.

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In a full-size kitchen, a large center island and custom cabinets are built for efficiency.

Though it can seem like everyone in Portland has (or wants) an ADU, there’s a big difference between a tacked-on backyard shed and a considered piece of domestic architecture. City code dictates that ADUs can’t exceed 800 square feet—along with other requirements such as ceiling heights, setbacks, and windows proportional to the main house. With the added challenge of a compact, 20-by-35-foot site, Wilson knew the form would have to be a perfect rectangle. And with all the design restrictions, Banker knew that they’d need to do everything they could to “make it feel light and open, and not just like a little shoebox.”    

Following design dictums of modern, bright, and airy, the trio visually and literally maxed out the space. Upstairs, ceilings in both bedrooms are vaulted; downstairs, the living room is topped by exposed wood beams that extend the view upstairs. Windows are used strategically: a seven-foot square of glass fronts the house, skylights pull in light from above, and long windows slice across walls. Triangular panes of glass above the bedroom doors provide soundproofing while opening the space, as does a frosted-glass sliding double door to a bedroom.

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Strategically placed accessories and decorations add pops of color.

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Other space-saving functions are both smart and subtle, such as the radiant heating under both floors, which Banker installed himself (“my first and last time doing that!” he says), a tankless water heater, and a powder room tucked into the empty space under the stairwell.

For the finishes, Greco selected a neutral palette of grays, whites, and wood. “We wanted it to feel serene and calm in here, like a modern beach getaway,” she says. “Plus, this place doesn’t hold enough space for lively colors.” A glossy, six-inch slab of raw concrete flooring flows underfoot downstairs, white paint covers the walls, and bright wood warms surfaces throughout—from the Doug fir staircase and window trim to side tables and a headboard that Banker handmade from alder remnants. Pillows, blankets, and art provide small doses of color.

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Natural light from windows, skylights, and mirrors helps the bedrooms and outdoor shower feel bigger.

Furniture was also crucial to creating the illusion of space. As Greco says, “If you have a huge living room, you can buy giant furniture and rearrange it four different ways. But we had to get every dimension of the furniture right to fit in here.” Beds were placed so there’s just enough room to scoot alongside. The custom couch from Perch doubles as a sleeper. And beyond adding to the beach-house vibe, the outdoor shower provides a valuable second bathing space.

The only drawback so far? The ADU has proven such a hit with visiting family members, neighbors’ guests, and even locals looking for staycation spots, there’s not much time left for Greco and Banker to spend in it. As Banker says, “We’re going to have to block out dates where we want the house!”

WISH LIST

Tips for living large in a little dwelling

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Sleeper Hit

Portland’s Perch Furniture helps clients custom-design couches that are manufactured to order in LA. Greco designed their couch to sit low against the wall, with a queen-size sleeper folded inside for extra guests. From $1,950 at Perch Furniture, 923 NW 10th Ave, perchfurniture.com

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Groovy Greens

Like something plucked from an ancient forest, sculptural staghorn ferns are usually found nestled in tree trunks. Here, they’re planted in vintage burlap bags and mounted on wooden boards; Greco has three in their kitchen. $46 at Pistils Nursery, 3811 N Mississippi Ave, shop.pistilsnursery.com

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Fairest of Them All

Mirrors help bounce light throughout the ADU. This Stockholm mirror in the entryway, with its swirl of walnut veneer, is particularly handy: the bottom of the frame acts as a shelf for errant keys or a cellphone. $99 at IKEA, ikea.com

 

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Hand-Blown Lighting

A swirling puff of white rests on a brass base in the Clouding Lamp, part of the collaborative lighting collection from local studios Esque and Cedar & Moss. Banker thinks this would look perfect in the living room. $1,950 at Cedar & Moss, cedarandmoss.com

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Blanketed in Hues

Sprightly blue flowers dance on a crimson background on this Kantha quilt from Jaipur, giving the living room couch a splash of drama. Find similar at Jaipur Handloom, jaipurhandloom.com

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Color Down Under

With its bright pinks and oranges popping against the gray walls, Greco added the Sivas rug, handwoven in India, to “throw in a little bit of color” to one of the bedrooms. From $139 at West Elm, 1201 NW Couch St, westelm.com

 

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Porch Perches

An orange polycarbonate Banks Side Chair by American Atelier set on gold legs is a bit of cheery bling on the ADU’s front porch, where guests can enjoy morning coffee while overlooking the streetscape. $96 at amazon.com

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