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    King County, WA Duplexes for Sale

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    Duplex with Two Composite Decks
    Updated: Sep 19
    Duplex with Two Composite Decks

    7741 1st Ave NE, Seattle, WA 98115

    $1,079,000
    2,220 sqft
    Legal duplex with two separate addresses
    2,220 SF property built in 1925
    Lower‑level 1‑bedroom unit has a private entrance and separate electric meter
    Studio room includes a bathroom and separate exterior entrance
    Two brand‑new composite decks
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    Craftsman Duplex with Parking
    Updated: Aug 22
    Craftsman Duplex with Parking

    410 N 46th St, Seattle, WA 98103

    $899,000
    1,880 sqft
    Duplex configuration with two residences
    Craftsman details include hardwood floors, leaded‑glass windows, built‑ins, and a wood‑burning fireplace
    Built in 1923
    Covered off‑street parking plus room for 1 to 2 additional parking spots
    Level backyard with potential for a detached ADU
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    Updated Duplex with Garages
    Updated Duplex with Garages

    1360 Florence St, Enumclaw, WA 98022

    $749,900
    2,670 sqft

    Two residences feature practical layouts, private fenced yard areas, and recent exterior improvements.

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    Duplex with Attached Garage
    Duplex with Attached Garage

    8011 Aurora Ave N, Seattle, WA 98103

    $849,950
    2,490 sqft

    The property includes two separate residences, in-unit laundry, central air, and secured parking.

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    Multifamily Property with Garage Conversion
    Multifamily Property with Garage Conversion

    38181 Se Northern St, Snoqualmie, WA 98065

    $924,997
    2,260 sqft

    Duplex-style configuration includes separate entrances and an additional finished living space with its own kitchen and bathroom.

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    Legal Duplex with Redevelopment Potential
    Legal Duplex with Redevelopment Potential

    618 NW 58th St, Seattle, WA 98107

    $1,200,000
    2,460 sqft

    Existing legal duplex in Ballard with redevelopment concepts that include additional housing configurations, subject to buyer verification.

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    Well-Maintained Duplex in Central Greenwood
    Well-Maintained Duplex in Central Greenwood

    814 North 105th Street, Seattle, WA 98133

    $890,000
    5,000 sqft

    Centrally located duplex with long-term tenants and development opportunities.

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    Duplex With Shared-Living Layout
    Duplex With Shared-Living Layout

    16068 Greenwood, Shoreline, WA 98133

    $1,825,000
    5,300 sqft

    Two residences provide private rooms, kitchens, laundry facilities, and dedicated tenant parking in Shoreline.

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    Lake View Duplex
    Lake View Duplex

    1730 Dexter Ave N, Seattle, WA 98109

    $1,050,000
    2,520 sqft 0.11 AC lot

    Two-unit income property with separate entrances, private outdoor areas, and individual laundry.

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    LR3 Urban Village Development Site
    LR3 Urban Village Development Site

    1306 S Bayview St, Seattle, WA 98144

    $1,295,000
    2,200 sqft

    Covered development site with an existing income-producing duplex in North Beacon Hill.

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    Updated Duplex with Private Yard
    Updated Duplex with Private Yard

    2602 Nw 62nd St, Seattle, WA 98107

    $1,200,000
    2,070 sqft

    Legal two-unit property with separate one-bedroom residences, shared laundry, garage storage, and landscaped outdoor space.

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    Restored Craftsman Duplex
    Restored Craftsman Duplex

    145 Park Avenue N, Renton, WA 98057

    $799,950
    1,900 sqft

    Two distinct residences feature updated kitchens, private entries, outdoor space, and off-street parking.

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    Two-Duplex Multifamily Property
    Two-Duplex Multifamily Property

    13622 51ST, Tukwila, WA 98168

    $1,200,000
    4,684 sqft 0.38 AC lot

    Four two-bedroom residences offer W/D, fireplaces, outdoor areas, and garage or off-street parking.

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    Mid-Century Duplex with Updated Systems
    Mid-Century Duplex with Updated Systems

    2515 NE 106th Place, Seattle, WA 98125

    $1,100,000
    2,860 sqft

    Two residential units feature separate laundry, private outdoor areas, storage, and six off-street parking spaces.

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    Brick Duplex with Attached Garages
    Brick Duplex with Attached Garages

    7420 Rainier Ave S, Seattle, WA 98118

    $625,000
    2,860 sqft

    Two-bedroom units offer basements, private laundry, garages, and additional driveway parking.

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    Remodeled Duplex with Basement Space
    Remodeled Duplex with Basement Space

    953 /955 23rd Ave, Seattle, WA 98122

    $1,150,000
    2,710 sqft

    Two updated residences with private rear parking and flexible lower-level space in Seattle’s Central Area.

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    Single-Level Duplex with Garages
    Single-Level Duplex with Garages

    1315 K St NE, Auburn, WA 98002

    $600,000
    1,860 sqft

    Two occupied residences feature updated flooring, private garages, and in-unit laundry.

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    Duplex with Mixed-Use Zoning
    Duplex with Mixed-Use Zoning

    652 NW 85th St, Seattle, WA 98117

    $950,000
    3,096 sqft

    Existing two-unit property with commercial redevelopment potential in Seattle’s Crown Hill area.

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    Multifamily Property with Duplex
    Multifamily Property with Duplex

    5911 Admiral, Seattle, WA 98116

    $1,275,000
    2,340 sqft

    Three-unit property with separate structures, updated interiors, private laundry, and flexible owner-user potential.

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    Two-Unit Duplex with Separate Meters
    Two-Unit Duplex with Separate Meters

    1701 19th Avenue S, Seattle, WA 98144

    $975,000
    1,723 sqft

    Duplex offers two 2-bedroom units, each with a private attached garage and separate electrical meter.

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    Tenant-Occupied Duplex
    Tenant-Occupied Duplex

    9202 17th Ave SW, Seattle, WA 98106

    $825,000
    1,920 sqft

    Two-unit residential property with occupants in place and access to transit and dining within a walkable setting.

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    Two-Unit Duplex Property
    Two-Unit Duplex Property

    332 E 2nd St, North Bend, WA 98045

    $839,900
    2,090 sqft

    Residential income property with one unit facing the street and another reached from the rear alley.

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    Seattle Duplex Redevelopment Opportunity
    Seattle Duplex Redevelopment Opportunity

    203 23rd Ave, Seattle, WA 98122

    $675,000
    2,940 sqft

    Duplex on corner lot near downtown Seattle, zoned LR2(M).

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    Renovated Duplex Property
    Renovated Duplex Property

    6753 14TH, Seattle, WA 98117

    $1,195,000
    3,300 sqft

    Two residences provide a flexible configuration for rental income, owner occupancy, or multigenerational living.

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    King County, WA Duplexes Market Trends and Statistics

    Explore 40 duplexes for sale in King County, WA, showcased through 40 active listings on our real estate platform. These investment opportunities span a total of 76,893 square feet of properties for sale, with an estimated market value of $39,593,497.

    Sale prices for duplexes in King County, WA start at $499,950, averaging $1,015,217, and reaching up to $2,294,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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