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    Humboldt County, CA Duplexes for Sale

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    Historic Mixed-Use Building with Storefront
    Updated: Feb 6
    Historic Mixed-Use Building with Storefront

    424 Main Street, Ferndale, CA 95536

    $500,000
    3,335 sqft 0.06 AC lot
    Built in 1914, Victorian mixed‑use building listed on the National Register of Historic Places (Mullady Building).
    3,335 SF total property with a 1,955 SF commercial storefront featuring tall ceilings and a glass storefront.
    Commercial storefront includes five office spaces and a laundry room, plus handicap‑accessible bathroom.
    Handicap access with accessible approach ramp and handicap restroom.
    Two residential apartments: one 1 bed/1 bath (“Apartment with the View”) and one 2 bed/1 bath apartment.
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    This listing looks promising.

    Here's a quick look at some key insights for

    424 Main Street, Ferndale, CA 95536

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    • Est. Cap Rate

      8.7%
      Above avg (5.9%)

    • Est. NOI

      $43K
      Annual

    • Price @ 7% Cap

      $621K
      Above asking
    View Property Analytics
    Renovated Duplex Property
    Updated: Jul 29
    Renovated Duplex Property

    2529 Baldwin Street, Arcata, CA 95521

    $649,900
    2,319 sqft 0.21 AC lot
    2,319‑square‑foot one‑story property with 5 bedrooms and 3 bathrooms
    Two‑bedroom ADU supports a two‑living‑space configuration
    Large rear bonus room suited for an art studio or guest quarters
    0.21‑acre lot with two storage sheds and landscaping
    Recent updates include roof, flooring, paint, lighting, gutters, and range hood
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    Duplex Property with Shop
    Duplex Property with Shop

    2695 Newburg Road, Fortuna, CA 95540

    $539,000
    1,287 sqft 0.73 AC lot

    Two separate residences share a fenced acreage setting with an enclosed patio, equipment shop, and detached storage.

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    Duplex With En-Suite Bedrooms
    Duplex With En-Suite Bedrooms

    345 Evergreen Avenue, Arcata, CA 95518

    $674,900
    2,456 sqft 0.18 AC lot

    Two residences provide flexible layouts, off-street parking, and a location just blocks from Cal Poly Humboldt.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Residential Income Land with Quadplex
    Residential Income Land with Quadplex

    432 T Street, Eureka, CA 95501

    $975,000
    2,070 sqft 0.49 AC lot

    Three contiguous lots with Highway 101 frontage, plus a quadplex and a duplex on-site.

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    Duplex With Ensuite Bedrooms
    Duplex With Ensuite Bedrooms

    377 Evergreen Avenue, Arcata, CA 95518

    $674,900
    2,460 sqft 0.18 AC lot

    Two residential units provide flexible layouts, private bathrooms, off-street parking, and proximity to Cal Poly Humboldt.

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    Triplex with Attached Garages
    Triplex with Attached Garages

    1665 Ronald Avenue, Fortuna, CA 95540

    $595,000
    2,600 sqft 0.41 AC lot

    Three residences on one property, including a renovated rear 2-bed home and a separately metered duplex.

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    Arcata Multifamily Investment Opportunity
    Arcata Multifamily Investment Opportunity

    1062 N Street, Arcata, CA 95521

    $675,000
    2,440 sqft 0.30 AC lot

    Two single-family homes on one lot in Arcata, CA.

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    Henderson Center Mixed-Use Investment Property
    Henderson Center Mixed-Use Investment Property

    511 Henderson Street 515 Henderson Street, Eureka, CA 95501

    $550,000
    2 sqft

    Mixed-use property with retail and residential units in Eureka, CA.

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    Duplex with Fenced Yard
    Duplex with Fenced Yard

    3249 17th Street, Eureka, CA 95501

    $499,000
    1,858 sqft 0.22 AC lot

    A separate one-bedroom unit has its own yard and driveway and generates rental income.

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    10-Unit Apartment Building
    10-Unit Apartment Building

    2308 Heiser Lane, Eureka, CA 95501

    Contact for pricing
    5,586 sqft

    Five duplex buildings offer attached garages and private yards for every unit.

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    Versatile Duplex with Patio
    Versatile Duplex with Patio

    3005 Albee Street, Eureka, CA 95501

    $325,000
    1,941 sqft 0.12 AC lot

    Two-unit residential income property with a patio view and alley-access backyard in Eureka’s multi-family zoning.

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    Duplex with Separately Metered ADU
    Duplex with Separately Metered ADU

    1027 D Street, Eureka, CA 95501

    $334,900
    1,680 sqft 0.16 AC lot

    Two-level home with a separately metered 1-bedroom, 1-bath ADU, plus garage/storage and indoor laundry.

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    Victorian Duplex with Fenced Yard
    Victorian Duplex with Fenced Yard

    1914 A St, Eureka, CA 95501

    $355,000

    Two-level duplex offering separate bedroom and bathroom configurations with a private fenced backyard.

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    Four-Building Multifamily Portfolio
    Four-Building Multifamily Portfolio

    6561 Spring Street, Fields Landing, CA 95537

    $1,300,000
    6,500 sqft 3.20 AC lot

    One duplex, two single-family homes, and one triplex on a single lot.

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    Well-Maintained Duplex with Fenced Yard
    Well-Maintained Duplex with Fenced Yard

    335 C Street, Fields Landing, CA 95537

    $439,000
    1,836 sqft 0.21 AC lot

    A versatile two-unit duplex with attached garages and washer/dryer hookups, suited for renting or owner-occupancy.

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    Updated Two-Unit Duplex
    Updated Two-Unit Duplex

    3376 Lowell St, Eureka, CA 95503

    $399,500

    Two updated residences share a landscaped backyard adjoining a greenbelt and creek on a dead-end street.

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    Victorian Duplex with Secondary Unit
    Victorian Duplex with Secondary Unit

    275 Orchard St, Rio Dell, CA 95562

    $369,900

    Two structures occupy a lot with bluff views, fruit trees, grapes, and existing chicken coops.

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    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 18 Active Listings in Humboldt County, CA

    Humboldt County, CA Duplexes Market Trends and Statistics

    Explore 18 duplexes for sale in Humboldt County, CA, showcased through 18 active listings on our real estate platform. These investment opportunities span a total of 38,370 square feet of properties for sale, with an estimated market value of $9,856,000.

    Sale prices for duplexes in Humboldt County, CA start at $325,000, averaging $579,764, and reaching up to $1,300,000 — 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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