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    Suffolk County, NY Multifamily Properties for Sale

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    Two-Unit Duplex with Basement
    Updated: Sep 2
    Two-Unit Duplex with Basement

    544 Park Avenue, Centereach, NY 11720

    $679,990
    0.22 AC lot
    Two distinct living areas, including a separate two‑bedroom upper apartment
    0.22‑acre lot with private driveway, ample parking, and backyard
    Full unfinished basement provides additional storage space
    Three electric meters: one on each floor and one for the basement
    Two oil burners and oil tanks
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    Duplex with Separate Utility Systems
    Updated: Sep 22
    Duplex with Separate Utility Systems

    22-24 Conifer Court, Northport, NY 11768

    $979,000
    0.24 AC lot
    Two residences, each with 3 bedrooms and 1 full bathroom
    Separate electric meters, oil tanks, and central air condensers; water is shared
    0.24‑acre lot with basement space of 750 sq ft set above grade
    Two oil burners and roof installed in 2019
    Kitchens, floors, HVAC systems, appliances, and carpets updated in 2021
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    Three-Family Colonial with Garages
    Three-Family Colonial with Garages

    64 Old Dock Road, Kings Park, NY 11754

    $849,999
    0.38 AC lot

    Colonial income property with separate utility systems, detached garages, and a vacant apartment for immediate occupancy.

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    Seven-Unit Multifamily Property
    Seven-Unit Multifamily Property

    92 North Rd, Hampton Bays, NY 11946

    $2,100,000
    3,799 sqft 1.20 AC lot

    Fully occupied residential rental compound with multiple dwellings, detached garage, and R-20 zoning.

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    Two-Home Duplex with Water Views
    Two-Home Duplex with Water Views

    120 Soundview Drive, Rocky Point, NY 11778

    $749,990
    0.23 AC lot

    Duplex-style property with a four-bedroom main residence, separate two-bedroom cottage, and expansive Long Island Sound views.

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    Legal Triplex with Wooded Setting
    Legal Triplex with Wooded Setting

    10 Sally Lane, Ridge, NY 11961

    $925,000
    0.75 AC lot

    Fully occupied triplex with updated interiors, rear parking, and tenant-paid electric and heat.

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    Two-Family Duplex with Warehouse Space
    Two-Family Duplex with Warehouse Space

    74 W Hoffman Avenue, Lindenhurst, NY 11757

    $899,000
    0.11 AC lot

    Residential units are paired with rear office and warehouse areas across two levels.

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    Two-Unit Residential Income Duplex
    Two-Unit Residential Income Duplex

    17 Crescent Dr, Huntington, NY 11743

    $1,200,000
    1,800 sqft 0.56 AC lot

    Two 2BR/2B units on a 0.56-acre parcel, offered for sale in Huntington Village.

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    Seven-Unit Apartment Property
    Seven-Unit Apartment Property

    92 North Road, Hampton Bays, NY 11946

    $2,100,000
    1.25 AC lot

    Fully occupied rental asset with multiple residential structures and detached garage on a substantial R20-zoned parcel.

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    Quadplex Compound with Cottages
    Quadplex Compound with Cottages

    718 Montauk Highway, East Quogue, NY 11942

    $2,200,000
    0.92 AC lot

    Four residential components include a farmhouse, two cottages, and an attached studio with established rental history.

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    Mixed-Use Retail and Apartments
    Mixed-Use Retail and Apartments

    1080 New York Ave, Huntington Station, NY 11746

    $9,200,000
    24,500 sqft 0.23 AC lot

    Newly built mixed-use property with ground-floor retail and sixteen one-bedroom apartments plus parking garage.

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    Commercial Land with Existing Improvements
    Commercial Land with Existing Improvements

    97 Carleton Avenue, Islip Terrace, NY 11752

    $899,998
    0.46 AC lot

    The parcel includes a two-family residence and a detached garage finished as recreation space.

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    2-Unit Cape Cod Duplex
    2-Unit Cape Cod Duplex

    35 Ward Avenue, Northport, NY 11768

    $899,000
    0.17 AC lot

    Two rentable residences offer separate outdoor areas and off-street parking, with seasonal water views.

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    Mixed-Use Property with Garage
    Mixed-Use Property with Garage

    149 Depot Rd, Huntington Station, NY 11746

    $1,000,000
    3,070 sqft 0.33 AC lot

    Two-building configuration combines ground-floor commercial space, an existing apartment, and C6 & R5 zoning.

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    Three-Unit Triplex
    Three-Unit Triplex

    112 Hillside Road, Deer Park, NY 11729

    $995,000
    0.11 AC lot

    A ground-floor residence and two upper-level apartments create a three-unit configuration.

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    Two-Family Duplex with Separate Utilities
    Two-Family Duplex with Separate Utilities

    31 Crooked Hill Road, Huntington, NY 11743

    $1,499,000
    0.23 AC lot

    Two rented units share a foyer and basement storage with individual laundry centers.

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    Hampton Bays Multifamily Investment Opportunity
    Hampton Bays Multifamily Investment Opportunity

    134 Ponquogue Ave, Hampton Bays, NY 11946

    $1,550,000
    2,782 sqft 0.73 AC lot

    Legal three-unit property with development potential in Hampton Bays.

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    Two-Home Duplex Property
    Two-Home Duplex Property

    33 Locust Avenue, Southampton, NY 11968

    $999,999
    0.46 AC lot

    Legal two-family property with separate ranch residences, basement space, driveway parking, and renovation needs.

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    Waterfront Short-Term Rental Compound
    Waterfront Short-Term Rental Compound

    53 Old Neck Road S, Center Moriches, NY 11934

    $2,295,000
    3,000 sqft

    Main residence, renovated guest cottage, harbor boat, and deepwater dock create a flexible waterfront income property.

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    Mixed-Use Property with Retail
    Mixed-Use Property with Retail

    6 S ELMWOOD AVE, Montauk, NY 11954

    $3,200,000
    0.09 AC lot

    Two commercial storefronts with basement space are paired with residential apartments and a rear ocean view.

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    Short-Term Rental Property with Pool
    Short-Term Rental Property with Pool

    130 Laurel Drive, Montauk, NY 11954

    $3,195,000
    2,570 sqft

    Wooded beach home with a heated pool, flexible guest accommodations, and established rental history.

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    Victorian Quadplex with Detached Barn
    Victorian Quadplex with Detached Barn

    454 Main Street, Center Moriches, NY 11934

    $1,150,000
    0.75 AC lot

    Four occupied apartments in a preserved Victorian residence with a detached barn and access from Main Street and Crosby Street.

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

    21 Locust Ave, Amityville, NY 11701

    $799,000
    2,086 sqft

    Permitted two-family configuration includes separate utilities, a tenant-occupied secondary residence, and finished basement space.

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    Duplex with Updated Kitchens
    Duplex with Updated Kitchens

    458 N Magee Street, Southampton, NY 11968

    $1,500,000
    0.18 AC lot

    Corner-lot property with two living areas, quartz counters, stainless appliances, and a full unfinished basement.

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    Suffolk County, NY Multifamily Properties Market Trends and Statistics

    Explore 87 multifamily properties for sale in Suffolk County, NY, showcased through 87 active listings on our real estate platform. These investment opportunities span a total of 77,586 square feet of properties for sale, with an estimated market value of $138,626,952.

    Sale prices for multifamily properties in Suffolk County, NY start at $155,000, averaging $1,670,204, and reaching up to $13,750,000 — 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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    Featured Suffolk County Real Estate Agencies

    Realmo connects you with licensed Suffolk County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Realty Connect USA
    35 Arkay Dr Hauppauge, NY 11788
    Phone: 16318815160
    www.realtyconnectusa.com
    JMRENY
    52 Broadway, Suite 1 Greenlawn, NY 11740
    Phone: 15166547355
    www.jmreny.com
    Eric G. Ramsay Jr. Associate LLC
    236 West Main St Bayshore, NY 11706
    Phone: 16316651500
    www.ramsayrealtors.com
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