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    Jefferson County, NY Duplexes for Sale

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    Two-Unit Duplex with Attics
    Updated: Sep 23
    Two-Unit Duplex with Attics

    206 N Pleasant Street, Watertown, NY 13601

    $235,000
    2,448 sqft 0.21 AC lot
    Two‑unit duplex with identical three‑bedroom, one‑bath layouts
    2,448‑square‑foot property on a 0.2126‑acre parcel
    Renovated down to the studs in 2015
    Separate basements and walk‑up attics for both units
    Designated parking for each residence and a shared backyard
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    Two-Unit Duplex with Extra Space
    Updated: Sep 18
    Two-Unit Duplex with Extra Space

    836 Leray Street, Watertown, NY 13601

    $198,500
    1,782 sqft 0.20 AC lot
    Two‑unit duplex with 1,782 square feet
    Both units offer 2 bedrooms and 1 bathroom
    Additional space in each unit plus a basement
    Built in 1880 on a 0.1974‑acre lot
    Forced‑air heating with natural gas
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    Two-Unit Duplex with Porches
    Two-Unit Duplex with Porches

    416 S James Street, Carthage, NY 13619

    $214,900
    2,402 sqft 0.40 AC lot

    Well-maintained income property with separate utilities, shared laundry, storage, and a carriage house-style garage.

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    Two-Unit Duplex with Off-Street Parking
    Two-Unit Duplex with Off-Street Parking

    142 N Mechanic Street, Wilna, NY 13619

    $209,000
    2,972 sqft

    Two separate living units feature distinct kitchens, natural gas heat, and separate gas and electric meters.

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    Duplex with Separate Meters
    Duplex with Separate Meters

    142 N Mechanic Street, Carthage, NY 13619

    $209,000
    2,972 sqft 0.30 AC lot

    Two residential units include a renovated one-bedroom apartment, natural gas heating, outdoor space, and paved off-street parking.

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    Side-by-Side Duplex with Large Yard
    Side-by-Side Duplex with Large Yard

    8337 S Main Street, Evans Mills, NY 13637

    $199,900
    1,860 sqft 0.42 AC lot

    Two-unit property with flexible occupancy options, separate electrical service, and a recently updated first-floor bathroom.

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    Tenant-Occupied Duplex
    Tenant-Occupied Duplex

    7 N Jefferson Street, Carthage, NY 13619

    $209,000
    2,569 sqft 0.18 AC lot

    Two occupied residential units offer separate utility metering, natural gas heat, and off-street parking on a corner lot.

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    Two-Unit Duplex with Attics
    Two-Unit Duplex with Attics

    206 N Pleasant St, Watertown, NY 13601

    $235,000
    2,448 sqft

    Both residences include a first-floor bonus room, basement, and walk-up attic for additional flexible space.

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    Two-Unit Duplex with Side Porches
    Two-Unit Duplex with Side Porches

    308 Mullin Street, Watertown, NY 13601

    $188,000
    2,682 sqft 0.10 AC lot

    Two residential units offer separate electric meters and private outdoor space.

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    Duplex Property with Vacant Lot
    Duplex Property with Vacant Lot

    517 West Street, Carthage, NY 13619

    $150,000
    1,492 sqft 0.06 AC lot

    Two separate homes and an adjoining vacant parcel are offered together for renovation and future use flexibility.

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    Two-Story Duplex with Garage
    Two-Story Duplex with Garage

    416 S James St, Carthage, NY 13619

    $214,900
    2,402 sqft

    Two three-bedroom apartments offer separate utilities, porches, shared laundry, storage, and a spacious yard.

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    Duplex With Garage
    Duplex With Garage

    606 Lansing Street, Watertown, NY 13601

    $119,900
    1,543 sqft 0.29 AC lot

    Two-unit property with one occupied apartment and a recently renovated second unit ready for occupancy.

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    Two-Unit Duplex with Detached Garage
    Two-Unit Duplex with Detached Garage

    1108 Washington Street, Watertown, NY 13601

    $230,000
    1,733 sqft 0.32 AC lot

    Flexible duplex layout with separate laundry areas, a covered porch, and convenient access to shopping, dining, and city amenities.

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    Duplex with Separate Utilities
    Duplex with Separate Utilities

    214 /218 Charles St, Watertown, NY 13601

    $169,900
    1,694 sqft

    Side-by-side units include private entrances, dedicated yard areas, dry basements, and additional off-street parking.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    551 Coffeen Street, Watertown, NY 13601

    $180,000
    1,820 sqft 0.29 AC lot

    Two apartments each provide two bedrooms and one full bathroom, with a renovated first-floor unit and off-street parking.

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    Two-Unit Duplex with Separate Utilities
    Two-Unit Duplex with Separate Utilities

    1021 Boyd Street, Watertown, NY 13601

    $155,000
    1,882 sqft 0.11 AC lot

    Upper and lower units feature separate utilities and distinct living areas.

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    Maintained Duplex with Garage
    Maintained Duplex with Garage

    632 Hillcrest Ave, Watertown, NY 13601

    $234,900
    1,745 sqft

    Owner-occupant duplex with updated interiors, dedicated outdoor areas, ample parking, and a separate garage.

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    Two-Unit Duplex with Deck
    Two-Unit Duplex with Deck

    30/32 Liberty Street, Adams, NY 13605

    $179,900
    2,261 sqft 0.35 AC lot

    Both apartments are tenant occupied, with a bathroom update completed in 2025.

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    Tenant-Occupied Duplex
    Tenant-Occupied Duplex

    7 N Jefferson Street, Champion, NY 13619

    $209,000
    2,569 sqft

    Two separately metered residences provide distinct layouts, natural gas heat, and off-street parking.

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    632 Hillcrest Avenue, Watertown, NY 13601

    $234,900
    1,745 sqft 0.14 AC lot

    Separate one- and three-bedroom units include patios, dedicated living areas, and a private yard.

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    Side-by-Side Duplex with Large Yard
    Side-by-Side Duplex with Large Yard

    8337 S Main St, Evans Mills, NY 13637

    $199,900
    1,860 sqft

    Two-story duplex with separate electrical meters and panels serving its distinct residential units.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    345 Brainard Street, Watertown, NY 13601

    $235,000
    2,356 sqft 0.16 AC lot

    Two-bedroom units include 1.5 baths, in-unit laundry, separate utilities, and off-street parking.

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    Two-Unit Duplex with Detached Garage
    Two-Unit Duplex with Detached Garage

    345 Brainard St, Watertown, NY 13601

    $235,000
    2,356 sqft

    Tenant-occupied property with in-unit laundry, separate utilities, off-street parking, and recent roof and window improvements.

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    Two-Unit Duplex with Off-Street Parking
    Two-Unit Duplex with Off-Street Parking

    340-342 N Rutland Street, Watertown, NY 13601

    $89,900
    2,310 sqft 0.16 AC lot

    Corner-lot duplex with separate utilities, two bedrooms per unit, and enclosed porch space.

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    Jefferson County, NY Duplexes Market Trends and Statistics

    Explore 50 duplexes for sale in Jefferson County, NY, showcased through 50 active listings on our real estate platform. These investment opportunities span a total of 83,895 square feet of properties for sale, with an estimated market value of $9,134,900.

    Sale prices for duplexes in Jefferson County, NY start at $75,000, averaging $182,698, and reaching up to $330,000 — 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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