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    Knox County, ME Duplexes for Sale

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    Portland, ME Lewiston, ME Augusta, ME
    7 listings
    New England Residence with Income Potential
    $445,000
    2,728 SF
    New England Residence with Income Potential

    20 Chestnut Street, Rockland, ME 04841

    Versatile property near Rockland harbor, ideal for owners or investors.
    • Ocean front property with public water and public sewer
    • Year built 1880 with wood frame construction and aluminum siding
    • Main layout: three bedrooms and two full bathrooms
    • Second story includes three bedrooms and another full bathroom
    • One‑bedroom apartment with full bathroom, private entry, sitting deck, and its own driveway
    Updated: Jun 14
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    In-Town Duplex with Private Parking
    $465,000
    2,800 SF
    In-Town Duplex with Private Parking

    30 - 32 Granite Street, Rockland, ME 04841

    Well-maintained two-unit duplex with private parking, updated exterior systems, and mirror-image 4-bedroom layouts.
    • Well‑maintained in‑town Rockland duplex with a strong rental history and mirror‑image units
    • Each unit offers 4 bedrooms and 2 full bathrooms, with option for a first‑floor bedroom
    • Multiple interior bathrooms plus one‑floor living features (including 1st floor bedroom), with wood/laminate/vinyl flooring
    • Updated exterior: newer roof and updated vinyl siding, plus porch and private parking
    • Separate second entry for each unit and tandem off‑street parking
    Updated: Jun 1
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    Rockport Multi-Family Duplex Opportunity
    $375,000
    1,346 SF
    Rockport Multi-Family Duplex Opportunity

    Well-maintained Rockport duplex with rental history and conversion potential.

    1032 Commercial Street, Rockport, ME 04856

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    Versatile Warren Property with Acreage
    $385,000
    3,888 SF
    Versatile Warren Property with Acreage

    15-acre Warren property with mixed-use potential near Back River.

    1257 N Pond Road, Warren, ME 04864

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    Rockport Multi-Family Living Spaces
    $439,900
    2,811 SF
    Rockport Multi-Family Living Spaces

    Two detached homes on 4.06 acres, ideal for rental.

    810 Rockland Street, Rockport, ME 04856

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    Rockland Duplex Near Downtown
    $399,000
    1,881 SF
    Rockland Duplex Near Downtown

    In-town Rockland duplex near shopping, theater, restaurants, and art galleries.

    323 Broadway, Rockland, ME 04841

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    Warren Two-Unit Property with Garage
    $360,000
    2,000 SF
    Warren Two-Unit Property with Garage

    Two-unit property with a three-bay garage and rental potential.

    350 Main Street, Warren, ME 04864

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    Based on your search, we've compiled 7 Potential Opportunities for your consideration. Besides 7 Active listings in Knox County, ME, we suggest exploring several alternatives:

    Knox County, ME Duplexes Investment Opportunities Market Analysis

    Explore 7 duplexes for sale in Knox County, ME, showcased through 7 active listings on our real estate platform. These investment opportunities span a total of 17,454 square feet of properties for sale, with an estimated market value of $2,868,900.

    Sale prices for duplexes in Knox County, ME start at $360,000, averaging $409,842, and reaching up to $465,000 — 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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