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    Monmouth County, NJ Duplexes for Sale

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    Two-Family Duplex with Loft
    Updated: Sep 9
    Two-Family Duplex with Loft

    145 Chestnut Street, Red Bank, NJ 07701

    $1,375,000
    4,580 sqft 0.11 AC lot
    Two‑family duplex with 4,580 square feet of property size
    First‑floor unit includes 3 bedrooms and 2 full bathrooms
    Second‑floor unit offers 2 bedrooms, 2 full bathrooms, and a bonus loft
    Renovation scheduled for completion in October 2026
    Separate utilities and open‑concept living spaces in both units
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    Updated Duplex with Detached Garage
    Updated: Sep 21
    Updated Duplex with Detached Garage

    104 Morris Avenue, Long Branch, NJ 07740

    $1,699,900
    3,491 sqft 0.40 AC lot
    3,491‑square‑foot duplex on a 0.4‑acre corner lot
    Two‑family property with 5 bedrooms and 4 bathrooms
    Detached garage plus off‑street and on‑street parking
    Recent improvements include windows, paint, mechanicals, and sheetrock
    Two blocks from the beach, Pier Village, and NJ Transit
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    Duplex with Wooded Setting
    Duplex with Wooded Setting

    1 Thompson Drive, Leonardo, NJ 07737

    $999,900
    2,912 sqft 1.12 AC lot

    Legal two-family residence with off-street parking, public utilities, and a deck.

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    Updated Duplex with Detached Garage
    Updated Duplex with Detached Garage

    104 Morris Ave, Long Branch, NJ 07740

    $1,699,900
    3,491 sqft 0.40 AC lot

    Income-producing two-family residence on a corner parcel two blocks from the beach, Pier Village, and NJ Transit.

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    Two-Home Duplex
    Two-Home Duplex

    1806 Fernwood Road, Belmar, NJ 07719

    $925,000
    1,350 sqft 0.06 AC lot

    Two residences share laundry space, an outdoor shower, and a backyard with lighting and a grill.

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    Lakefront Victorian Duplex
    Lakefront Victorian Duplex

    103 Central Avenue, Ocean Grove, NJ 07756

    $1,999,000
    3,099 sqft 0.06 AC lot

    A separate first-floor apartment and upper-level living areas provide two distinct residential arrangements.

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    Duplex with Separate Entrances
    Duplex with Separate Entrances

    173 - 173A Forest Avenue, Keansburg, NJ 07734

    $589,000
    1,604 sqft 0.20 AC lot

    Two distinct residences include a three-bedroom home and a two-bedroom unit, each with its own entry.

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    Two-Cottage Duplex with Separate Systems
    Two-Cottage Duplex with Separate Systems

    100 Cookman Ave, Ocean Grove, NJ 07756

    $849,000
    1,700 sqft

    Two distinct cottages offer separate systems, flexible layouts, and character-rich indoor and outdoor spaces.

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    Two-Family Duplex with Outdoor Space
    Two-Family Duplex with Outdoor Space

    130 Heck Avenue, Ocean Grove, NJ 07756

    $600,000
    1,072 sqft 0.04 AC lot

    Separate unit entrances and private outdoor areas support flexible use of this two-unit property.

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    Two-Unit Duplex on Acreage
    Two-Unit Duplex on Acreage

    135 Friendship Road, Howell, NJ 07731

    $729,000
    1,912 sqft 2.08 AC lot

    Each residence has two bedrooms and one full bathroom, with a shared parcel of more than two acres.

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    Duplex with Finished Third Floor
    Duplex with Finished Third Floor

    97 Asbury Ave, Ocean Grove, NJ 07756

    $1,111,111
    2,217 sqft

    Flexible property with distinct first- and second-floor layouts, outdoor space, and additional finished living area above.

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    Two-Unit Duplex with Basement
    Two-Unit Duplex with Basement

    126 De Witt Avenue, Asbury Park, NJ 07712

    $525,000
    1,568 sqft 0.17 AC lot

    Separate utilities, off-street parking, and a full basement with tenant storage.

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    2-Unit Ranch Duplex
    2-Unit Ranch Duplex

    33-35 Atlantic Avenue, Manasquan, NJ 08736

    $999,000
    1,792 sqft 0.23 AC lot

    Side-by-side ranch units offer a two-family residential configuration near downtown Manasquan.

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    Duplex With Private Entrances
    Duplex With Private Entrances

    173 - 173A Forest Avenue, Keansburg, NJ 07734

    $589,000
    1,604 sqft

    Two separate residences each have a private entrance, with three-bedroom and two-bedroom layouts.

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    New Construction Duplex with Garages
    New Construction Duplex with Garages

    108 Broad Street, Keyport, NJ 07735

    $769,000
    2,000 sqft

    Under-construction duplex with upgraded interiors, open-concept living, and public water and sewer service.

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    New Construction End-Unit Duplex
    New Construction End-Unit Duplex

    108 Broad Street, Keyport, NJ 07735

    $799,000
    2,000 sqft

    Modern duplex with upgraded finishes, two-zone HVAC, and an oversized direct-entry garage.

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    Corner-Lot Duplex with Separate Utilities
    Corner-Lot Duplex with Separate Utilities

    120 Atkins Avenue, Neptune, NJ 07753

    $599,000
    1,798 sqft 0.15 AC lot

    Two-unit property with a tenant-occupied lower residence and a vacant upper unit ready for occupancy.

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    New Construction Duplex Residence
    New Construction Duplex Residence

    4 Center Street, Sea Bright, NJ 07760

    $1,875,000
    3,005 sqft

    Under-construction duplex with a private elevator, balconies, rooftop deck, and oversized two-car garage.

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    Raised Duplex Near the Beach
    Raised Duplex Near the Beach

    521 Brielle Road, Unit 2, Manasquan, NJ 08736

    $1,150,000
    800 sqft

    The two-unit property has a history of summer leases.

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    Victorian Duplex
    Victorian Duplex

    103 Central Avenue, Ocean Grove, NJ 07756

    $1,999,000
    3,239 sqft 0.06 AC lot

    A multi-level layout pairs a ground-floor apartment with additional living areas above.

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    Renovated Two-Unit Duplex
    Renovated Two-Unit Duplex

    1806 Fernwood Rd, Belmar, NJ 07719

    $925,000
    675 sqft

    Two separate residences provide a two-bedroom layout in front and a one-bedroom home behind it.

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    Duplex with Separate Electric Meters
    Duplex with Separate Electric Meters

    1534 Asbury Avenue, Asbury Park, NJ 07712

    $625,000
    1,904 sqft 0.15 AC lot

    Five bedrooms and three bathrooms accompany month-to-month tenancies with tenants paying their own electric service.

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    Two-Unit Duplex with Wooded Setting
    Two-Unit Duplex with Wooded Setting

    1 Thompson Drive, Leonardo, NJ 07737

    $999,900
    2,912 sqft

    Legal two-family configuration with substantial off-street parking and a private setting near beaches, marina access, and commuter transportation.

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    Duplex with Finished Third Floor
    Duplex with Finished Third Floor

    97 Asbury Avenue, Ocean Grove, NJ 07756

    $1,111,111
    2,217 sqft 0.04 AC lot

    Flexible two-family layout with three bedrooms, three full baths, and two kitchens.

    View details
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    Monmouth County, NJ Duplexes Market Trends and Statistics

    Explore 97 duplexes for sale in Monmouth County, NJ, showcased through 97 active listings on our real estate platform. These investment opportunities span a total of 138,889 square feet of properties for sale, with an estimated market value of $82,649,427.

    Sale prices for two-family homes in Monmouth County, NJ start at $279,000, averaging $852,055, and reaching up to $1,999,000 — 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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