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    King County, WA Duplexes for Sale

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    Rebuilt Duplex with Separate Residence
    Updated: Aug 4
    Rebuilt Duplex with Separate Residence

    11647 Beacon, Seattle, WA 98178

    $1,258,000
    4,703 sqft
    Rebuilt to the studs in 2025
    Unit A includes 4 bedrooms and 3 baths
    Unit B is a self‑contained 1‑bedroom residence with a private entry
    Private garage, deck, and upstairs loft included with Unit A
    Separate vacant land condominium unit, Unit C, may also be available
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    This listing looks promising.

    Here's a quick look at some key insights for

    11647 Beacon, Seattle, WA 98178

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    • Est. Cap Rate

      6.8%
      Above avg (5.9%)

    • Est. NOI

      $85K
      Annual

    • Price @ 7% Cap

      $1.21M
      Suggested

    • Property Type

      Single Family Residence
      Built 1964
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    Duplex Property With Accessory Dwelling
    Updated: Jul 10
    Duplex Property With Accessory Dwelling

    1718 292nd Place NE, Carnation, WA 98014

    $1,445,000
    2,885 sqft
    2,885 Total Living Square Feet with a 2,180 sq ft main house and 705 SF DADU
    DADU positioned above the 3‑car garage
    Set on shy 2 acres along a private road
    Gated property with wraparound driveway and parking for vehicles, boat & RV
    2‑stall barn plus mature landscaping with producing cherry & apple trees
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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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    Income Duplex with DADU
    Income Duplex with DADU

    5230 16th Avenue NE, Seattle, WA 98105

    $2,550,000
    4,030 sqft

    8-bed main house plus newer 3-bed DADU, with tenants paying utilities and substantial rental income reported.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Restored Craftsman Duplex
    Restored Craftsman Duplex

    145 Park Avenue N, Renton, WA 98057

    $849,950
    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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    Craftsman Duplex with Garages
    Craftsman Duplex with Garages

    9701 Roosevelt Way NE, Seattle, WA 98115

    $875,000
    1,840 sqft

    Legal two-unit property with separate entrances, private outdoor space, and updated major systems.

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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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    Fully Leased Duplex
    Fully Leased Duplex

    4247 7TH, Seattle, WA 98105

    $1,956,800
    2,796 sqft 0.15 AC lot

    Two residential units include a seven-bedroom main residence and a two-bedroom basement apartment.

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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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    Residential Development Land with Existing Home
    Residential Development Land with Existing Home

    37325 8th Ave S, Federal Way, WA 98003

    Contact for pricing
    2,060 sqft 3.40 AC lot

    3.4-acre site zoned SR35 with preliminary plat approval for a four-lot short plat and an existing brick home.

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

    16068 Greenwood Ave N, Shoreline, WA 98133

    $1,825,000

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

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    Duplex with Mixed-Use Development Potential
    Duplex with Mixed-Use Development Potential

    652 NW 85th St, Seattle, WA 98117

    Contact for pricing
    3,096 sqft

    Duplex zoned NC1-55(M) with current rents and a noted path to mixed-use development with ground-level commercial.

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    Duplex with Private Parking
    Duplex with Private Parking

    2719 S 125th St, Seattle, WA 98125

    $700,000

    Two residences feature distinct layouts, individual electric meters, and dedicated laundry rooms.

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    Seismically Retrofitted Duplex
    Seismically Retrofitted Duplex

    1501 26th Ave S, Seattle, WA 98144

    $675,000
    0.09 AC lot

    Two residences provide three- and four-bedroom layouts, in-unit laundry, separate electrical panels, and private outdoor areas.

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    LR3 Urban Village Development Site
    LR3 Urban Village Development Site

    1306 S Bayview St, Seattle, WA 98144

    Contact for pricing
    2,810 sqft

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

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    Duplex on Subdividable Large Lot
    Duplex on Subdividable Large Lot

    2416 NE 16th Street, Renton, WA 98056

    $1,150,000
    0.42 AC lot

    Duplex with development potential near schools and amenities.

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    Seattle Duplex Redevelopment Opportunity
    Seattle Duplex Redevelopment Opportunity

    203 23rd Ave, Seattle, WA

    Contact for pricing
    0.11 AC lot

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

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    Duplex with Rooftop Deck
    Duplex with Rooftop Deck

    1300 E Remington Court Unit: A, Seattle, WA 98122

    $938,000

    Contemporary townhouse includes a separately entered studio ADU with its own kitchen, bathroom, and laundry.

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    Duplex with Drive-Through Carport
    Duplex with Drive-Through Carport

    7215 112th Ave SE, Newcastle, WA 98056

    Contact for pricing

    Duplex has self-contained levels with full kitchens and a drive-through carport with access to 73rd.

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    North Queen Anne Multifamily Portfolio
    North Queen Anne Multifamily Portfolio

    3463 6th Ave W, Seattle, WA 98119

    $2,294,000

    Two multifamily buildings in Seattle with renovation and lease-up potential.

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    Duplex in Old Burien Location
    Duplex in Old Burien Location

    15212 9th Ave SW, Seattle, WA

    Contact for pricing
    0.06 AC lot

    Well-maintained duplex in a desirable, vibrant, and growing community.

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    Legal Duplex With Garage
    Legal Duplex With Garage

    4517 Woodland Park Avenue N, Seattle, WA 98103

    Contact for pricing

    Exceptionally maintained legal duplex featuring soundproof windows, newer roof, and in-unit laundry in each unit.

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    Duplex With Attached ADU
    Duplex With Attached ADU

    816 NW Market St, Seattle, WA 98107

    Contact for pricing

    Craftsman duplex includes an attached 2-bed mother-in-law apartment with private alley access and 3-car parking.

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    King County, WA Duplexes Market Trends and Statistics

    Explore 26 duplexes for sale in King County, WA, showcased through 26 active listings on our real estate platform. These investment opportunities span a total of 40,827 square feet of properties for sale, with an estimated market value of $23,425,750.

    Sale prices for duplexes in King County, WA start at $649,000, averaging $1,301,430, and reaching up to $2,550,000 — 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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