Additional Dwelling Units Seattle WA

SEATTLE WA ADU HOMES | DADU HOMES SEATTLE WA FOR SALE

Search active, pending and sold homes with ADU accessory dwelling unit or DADU detached accessory dwelling units. Alternatively, you can search homes with a mil, mother-in-law or second kitchen or properties with a second home. If you have a specific area of interest, price point or would like to stay updated on newly listed ADU and DADU inventory, call, text or email anytime. 

Considering selling or refinancing your WA home? Get an INSTANT property valuation now!

Contact us today to find out how we can be of assistance to you!

Seattle Adu Dadu and MIL newest listings

$5,350,000
5 Beds 7 Baths 2558612 MLS ACTIVE Status
Breathtaking views unfold from this exceptional home ideally positioned along Queen Anne’s coveted Highland Drive. Puget Sound, the Space Needle, Seattle’s iconic skyline, create a spectacular backdrop for everyday living and entertaining. Thoughtfully curated interiors pair luxurious materials with modern refinement, including Tigerwood floors, a Carrara marble fireplace, dramatic open staircase, a stunning mirrored elevator - serves every level of the home - no need for stairs! An expansive great room flows effortlessly to a rooftop deck made for BBQs while enjoying the most photographed view of the city. A beautifully appointed kitchen serves as the heart of the home where every day begins and ends. Time for a party, a puzzle, a card game or fireside chat, stroll to the adjacent lounge, with full bar/subzero drawers, ice maker and wine cooler – and a 1500 bottle climate-controlled wine room. Spill out to the view deck to capture the sound, the city, the space needle at its best. Ah! the primary suite! It is a serene retreat with its own fireplace, balcony, luxurious inspired bath, spacious closet, and captivating views. 3 additional ensuites bedrooms accommodate everyone. A 1-bedroom ADU w/full kitchen & parking provide flexibility. A professionally designed fitness studio w/adjacent massage room emphasizes the bliss of this exceptional home. Queen Anne is a sweet neighborhood. Steps to parks, trails, nightlife, shopping, restaurants and all the city has to offer.

160 Highland Drive, Seattle

Listing courtesy of Windermere Mercer Island.

$899,950
4 Beds 3 Baths 2564039 MLS ACTIVE Status
Welcome to The Rooftops at Eastlake, where modern luxury meets unmatched flexibility. This exceptional 4-bedroom, 3-bath new construction townhome features one of Seattle's most versatile layouts with a fully self-contained 311 SF, 1-bedroom, 1-bath ADU offering its own private entrance, full kitchenette, dedicated laundry, walk-in shower, and independent living space. Perfect for rental income, multigenerational living, extended guests, a private office, or a house-hacking opportunity that helps offset your mortgage while maintaining privacy from the main residence. The main home offers an open-concept layout with oversized windows, soaring ceilings, and abundant natural light from desirable southern exposure. Designer finishes include European frameless cabinetry, floor-to-ceiling kitchen cabinets, quartz countertops, premium Samsung appliances, heated bathroom floors, Toto water closets, designer lighting, and full-home air conditioning. Enjoy peekaboo Lake Union and Seattle skyline views from the private rooftop deck. Heated, powered storage beneath the entry stairs is perfect for bikes and gear. Minutes to South Lake Union, Downtown Seattle, Capitol Hill, UW, Amazon, Google, Meta, restaurants, parks, and transit. EV-ready parking available for purchase. Built Green Certified, backed by a 2-10 Home Buyers Warranty, plus preferred lender incentives including a 2-1 rate buydown, lender credit toward closing costs, and no lender fees on a future refinance.

2328 Franklin Avenue E Unit #C, Seattle

Listing courtesy of Kronos Real Estate.

$1,700,000
6 Beds 6 Baths 2561878 MLS ACTIVE Status
Wonderful 4BR/3.5BA newer construction with a side-by-side 2BR/1.5BA ADU. Built in 2021 and situated on a 4,000 sqft corner lot, this contemporary home offers exceptional flexibility for multigenerational living, guest accommodations, or potential supplemental rental income. The main residence features a spacious open-concept main floor with tall ceilings, a gas fireplace in the living room, a well-appointed kitchen with a large island, a formal dining area, and a slider leading to the view deck. Upstairs, the home offers an expansive primary suite with a luxurious five-piece bath, designer walk-in closet, and private balcony, along with two additional large bedrooms and a convenient laundry room. The lower level includes a recreation room, full bath, and a large bonus room or nonconforming fourth bedroom. ADU includes a fully equipped kitchen, dedicated hot water heater, washer and dryer, ample main-level living space, and two full-size bedrooms on the upper level. Notable features include a 2-car garage with EV charger, central AC, hardwood floors, vaulted ceilings, Bosch S/S appliance package, keyless entry, Ring doorbells, on-demand hot water, metal roof, granite counters, and undermount sinks. Outdoors, enjoy newly landscaped yards with automated irrigation systems. Located just blocks from the light rail station, high-frequency transit, and the amenities of historic Columbia City, this better-than-new home is a rare opportunity for comfort, flexibility, and convenience.

5426 31st Avenue S, Seattle

Listing courtesy of John L. Scott Des Moines.

$3,225,000
6 Beds 7 Baths 2543858 MLS ACTIVE Status
A Legacy Compound! A rare first-time offering above Alki Beach—a 2014 two-residence estate blending the charm of a seaside cottage with elevated modern luxury. The main home spans 4,482 sq ft across three levels with 4 bedrooms, 4.5 baths, and a layout engineered for a future elevator. A separate 950 sq ft ADU offers 2 bedrooms, 1.5 baths, and in-unit laundry, creating exceptional flexibility for rental income, guests, or multigenerational living. Cement-board siding, substantial millwork, distressed wood accents, and cased openings add warmth and architectural character throughout. A Dutch-door entry opens to tumbled tile floors and ambient lighting, leading to a dining room overlooking a sunken living room with vaulted beamed ceilings and a gas fireplace. The vintage-inspired kitchen features a walnut island, soapstone counters, knotty alder cabinetry, paneled appliances, a 48" dual-fuel range, walk-in pantry, and water views in multiple directions. French doors open to a west-facing view deck ideal for entertaining. Upstairs, the owner's suite is a peaceful retreat w/sweeping views & offers a covered view deck & spa-like bath, accompanied by two ensuite bedrooms, each w/a private view balcony. The lower level includes a separate entry, partial kitchen, & sunken media room - perfect for a home business, nanny, or guest suite. An attached garage with dual 220V outlets, attached carport, and parking for up to eight vehicles complete this exceptional offering. Aloha from Alki!

3310 59th Avenue SW Unit #A & #B, Seattle

Listing courtesy of Windermere West Metro.

$1,795,000
5 Beds 4 Baths 2539690 MLS ACTIVE Status
Price slashed! Move-in ready offering exceptional value, this is a home you don't want to miss. Experience breathtaking views of Lake WA, the Bellevue skyline & Cascade Mountains from this exceptional residence in one of Seattle's most coveted neighborhoods. Thoughtfully designed with 4 bedrooms, 2.5 baths and 3,370 SF of beautifully appointed living space, this home seamlessly blends elegance, comfort & functionality. Upstairs, the luxurious primary suite serves as a private retreat featuring its own view deck, dual walk-in closets and spa-inspired bath. 3 add'l bedrooms and full bath complete the upper level. A rare and valuable bonus is a permitted 1-bedrm, 1-bath ADU with private entrance on the lower level, ideal for guests or rental income. The heart of the home is the chef's kitchen, equipped with Viking SS appliances, granite countertops and abundant space for cooking/gathering. Expansive living and dining areas are designed for everyday living, holiday celebrations and entertaining. Quality craftsmanship, elegant finishes & thoughtful attention to detail are evident throughout. Enjoy front-row seats to Seattle's iconic Blue Angels performances and take advantage of an unbeatable location just moments from Leschi's waterfront, popular restaurants, boutiques & parks. Rarely does a move-in ready lake-view home of this caliber become available. Don't miss this extraordinary opportunity to enjoy some of Seattle's most spectacular views and lifestyle amenities.

1125 Lake Washington Boulevard S, Seattle

Listing courtesy of Hardy Realty LLC.

$3,625,000
7 Beds 4 Baths 2539323 MLS ACTIVE Status
Superb newer construction in Laurelhurst is the winning combination of great features that you've been waiting for! Offering an amazing array of amenities & design excellence, this custom design was carefully tailored w/ the best proportions, layout, & materials to deliver joy, comfort, & privacy at the highest levels. The elegant facade invites one through the covered front porch entry into the expansive great room lit by optimal South & West sunlight. The kitchen is a chef's dream w/custom cabinets, slab counters, high-end appliances, & an attached pantry. Access the covered outdoor dining & large backyard through the folding glass doors. The main level has a bedroom 3/4 bath combo also useful as a home office. Upstairs is a truly lovely primary bedrooom w/ a breathtaking 5-piece spa bath, 3 more bedrooms, a full bath, & laundry. An incredibly rare & fully permitted 2-bedroom ADU/MIL offers reliable income from the major local tenant supply. This rock solid build is excellent structurally & mechanically w/ hardi-plank siding, comp shingle roof, ducted & ductless HVAC, dual water heaters, dual electric panels, & dual washers/dryers. These mechanicals are covered by the 2-Year Fidelity Enhanced Plus Plan home warranty! One of the best locations in Seattle provides quick access to Laurelhurst Elementary School (1.5 blocks away), w/ the Burke-Gilman Trail, high-end retail @ U-Village, Children's Hospital, Husky Stadium, & the glorious University of Washington just minutes away!

5027 48th Avenue NE, Seattle

Listing courtesy of Skyline Properties, Inc..

$1,399,000
6 Beds 5 Baths 2531769 MLS ACTIVE Status
Finding a turnkey 4 bedroom Seattle home is hard enough. Finding one with a completely separate 2 bedroom, 2 bathroom apartment is even more rare. This property offers the best of both worlds: a spacious 4 bedroom, 3 bathroom main residence plus a fully independent 2 bedroom, 2 bathroom lower-level apartment with its own private entrance. Whether you're looking for rental income, space for extended family, or a guest suite, opportunities like this are few and far between. The main residence features generous living spaces, a spacious kitchen built for gathering and entertaining, well-positioned bedrooms, and a functional layout that works for a variety of lifestyles. Move-in ready and well maintained, it offers the space buyers need without the projects often associated with older Seattle homes. Downstairs, the separate apartment includes a living area, full kitchen, 2 bedrooms, and 2 bathrooms, creating an ideal setup for rental income or multi-generational living. The rooftop deck showcases sweeping views of Mount Rainier and the Cascade Mountains, providing a stunning backdrop for morning coffee, sunset gatherings, and entertaining. Located minutes from the University of Washington, South Lake Union, Downtown Seattle, Fremont, and major Eastside employers. A two-car garage, ample off-street parking, proven rental history, and flexible floorplan add even more value. A rare combination of size, views, parking, and income potential.

400 NE 50th Street, Seattle

Listing courtesy of Windermere Real Estate Central.

$3,250,000
4 Beds 5 Baths 2511833 MLS ACTIVE Status
Live the lake life without ever leaving the city. Tucked inside a private, gated enclave on the shores of Haller Lake, this one-of-a-kind waterfront retreat is where everyday living feels like a getaway. With 47 ft of low-bank waterfront, private dock, and swim platform, your mornings start on the water and your evenings end around the firepit under the stars.Expansive glass doors blur the line between indoors and out—open everything up and let the lake breeze roll through as the home transforms into the ultimate entertaining space. Host unforgettable summer nights with seamless flow from the professional-grade chef’s kitchen to covered outdoor living, patio, and lush lawn right at the water’s edge.Inside, rich lyptus wood floors, cabinetry, and staircases add warmth and sophistication, while every level captures stunning lake views. Designed for both everyday comfort and elevated entertaining, the home features a state-of-the-art surround sound system and a home theater for an immersive experience.A flexible accessory dwelling unit offers incredible versatility—perfect for guests or income potential—with the option to function as a fully separate space or seamlessly integrate into the main home.From the resort-inspired primary suite to the outdoor area, hot tub, koi pond, and firepit, every detail invites you to relax, recharge, and enjoy. Just minutes from the city yet feeling worlds away, this is waterfront living at its coolest—paddle, swim, entertain, repeat.

2155 N 128th Street Unit #Unit C, Seattle

Listing courtesy of Keller Williams Eastside.

$795,000
3 Beds 2 Baths 2514701 MLS ACTIVE Status
Price improvement , bring buyers - come view ! Water heater has been replaced due to recent leakage. Enjoy this tastefully transformed West Seattle Craftsman Home. A 1580' 3 bed & 2 full bath home that can be your primary residence or utilize as an investment vehicle. The main floor offers a large primary bedroom, a 2nd bed & a full bath. An open kitchen & living room floor plan allow for a light & spacious feel to the home. The lower floor can be used as incorporated space into the main floor or rent out as a supplemental income stream with either short or long term rental potential. The lower floor offers a separate entrance via the rear yard into the studio living space, a covered back patio, a full bath & a kitchenette. the laundry area is situated between the upper & lower living areas for shared access. Enjoy over 300' of garage & storage space. Many additional improvements to this home include garage floor waterproofing & sump, updated electrical panel, multiple interior improvements as well as exterior. An enclosed carport for additional secure off street parking as well as providing access to landscaped rear yard area. This is an excellent location & proximity for all local amenities including the Admiral District, Westwood Mall, Ferries, Seattle & surrounding areas. This home is complete & move-in ready, Don't miss out! Check out the 3D Showcase listing link & enjoy rearranging the furniture with their virtual staging features !

2307 SW myrtle Street, Seattle

Listing courtesy of John L. Scott, Inc..

$3,490,000
7 Beds 7 Baths 2517741 MLS ACTIVE Status
Wake to unparalleled Lake Washington views in this custom-built waterfront home. Step onto your private dock and covered moorage for a sunrise paddle and boat back for dinner on the patio. This 60-ft no bank lakefront home blends timeless elegance, modern luxury, and three living spaces perfect for multigenerational living or VRBO income. Stunning entry with 10-ft ceilings, rich Brazilian cherry and travertine floors, and Loewen wood-clad doors that fill the home with light sets the stage for breathtaking lake views. Gorgeous kitchen with new 48" range, Sub-Zero fridge, wine fridge, walk-in pantry, and grand island opens via three french doors to covered patio. Five bedrooms with ensuite baths plus office. Primary suite leads to the balcony with sweeping views, gas fireplace, spa bath, and a walk-in closet. Upgrades: new A/C, tankless water heater, washers/dryers, mini-splits, heated floors, fire sprinklers, Vantage lighting & sound, copper porch roof. Ground-level ADU offers 2 beds, 1 bath, laundry room, and a big kitchen with an open living room. Newly finished accessory living quarters offers 1 bedroom, 1 bathroom, a large steam shower, and an open kitchen and living space. Separate gas & electric meters. Private driveway with 3-car garage and parking for 6. Rare Lake Washington waterfront living blending refinement, income potential, and effortless lake lifestyle. Turnkey and effortlessly manageable, this legacy home is ready for its next chapter.

10616 Rainier Ave S, Seattle

Listing courtesy of John L. Scott, Inc..

$1,499,999
3 Beds 3 Baths 2458515 MLS ACTIVE Status
Think it's a buyer's market? Not quite. It's a "Perceived Buyer's Market"—and smart buyers know that price adjustments on premium properties mean it's time to strike before everyone else catches on. This bright, open & beautiful home looking out with ship canal & Cascade views takes you down a private lane to this 3bed/3bath w/2 primary bedroom suites and 3 car garage! (Zillow has it as a 4 bed/4bath) One primary suite on main floor plus 2nd bedroom, and one primary suite/permitted ADU on upper level w/ a private covered balcony. This home has been impeccably maintained with a cook's kitchen, French doors opening to an office/art room w/ a view off dining room, & vaulted ceilings. Gas fireplace, tubular lights added in kitchen & hallway & gleaming hardwoods throughout. Upper primary suite has been used as an ADU with private entrance off 880sf 3 car garage, radiant floors in bath and rented at $1800/month. Low maintenance yard w/over 8400sf of gardening delight make this a Seattle gem. Private property line goes down near trellis on south side of house to 28th Pl W. Inspection has been completed and a copy is in kitchen, all work called out has been remedied. Close to Discovery Park, Seattle's largest green space with trails, beaches and beautiful views of Puget Sound. Only minutes from Magnolia Village with Met Market, boutiques, quaint cafes, nursery, hardware store, outdoor pool and library. A rural feel in the middle of the city. Don't let this one get away.

4322 29th Avenue W, Seattle

Listing courtesy of Keller Williams Realty Bothell.

Start Your Search
Based on information submitted to the MLS GRID as of . All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
IDX information is provided exclusively for consumers’ personal noncommercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.