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    New Castle County, DE Duplexes for Sale

    11 results
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    Wilmington Two-Unit Income Property
    $260,000
    1,450 SF

    Wilmington Two-Unit Income Property

    204 W 35Th St, Wilmington, DE 19802

    Two-unit property in Wilmington, offering immediate or potential rental income.

    • Two‑unit rental property, ideal for investors or owner‑occupants seeking rental income.
    • First floor unit has existing tenants and provides instant income.
    • Foundation has been rebuilt with permits and engineering, ensuring structural integrity.
    • First floor unit features a brand new bathroom built with permits in 2023.
    • Option to deliver the second floor unit vacant or with new tenants.
    Updated: Feb 18
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    Wilmington Duplex: Urban Living Opportunity
    $300,000
    1,975 SF

    Wilmington Duplex: Urban Living Opportunity

    604 W 8Th St, Wilmington, DE 19801

    Two-unit duplex in West Center City, Wilmington, ready for investment.

    • Prime West Center City location: Walkable to restaurants, Riverfront, and major employers.
    • Income‑generating duplex: Two 2‑bedroom units, ideal for investors or owner‑occupiers.
    • Separate systems: Tenants control their own temperature and energy consumption.
    • Value‑add potential: Unused third floor offers opportunity to increase bedrooms/bathrooms and income.
    • Modern layout: Professionally gutted and rebuilt units.
    Updated: Oct 16, 2025
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    Updated Duplex in Wilmington, Delaware
    $155,000
    1,175 SF

    Updated Duplex in Wilmington, Delaware

    Move-in ready duplex with modern finishes and separate utilities.

    731 W 4Th St, Wilmington, DE 19801
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    Multi-Level Home: Renovation Opportunity
    $185,000
    2,475 SF

    Multi-Level Home: Renovation Opportunity

    Multi-level home with rental potential or redesign opportunity.

    2318 N Market St, Wilmington, DE 19802
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    Urban Duplex in West Center City
    $300,000
    2,175 SF

    Urban Duplex in West Center City

    Two-unit property in downtown Wilmington with immediate cash flow.

    606 W 8Th St, Wilmington, DE 19801
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    Multi-Structure Property in Cleland Heights
    $580,000
    4,650 SF

    Multi-Structure Property in Cleland Heights

    Multi-structure property with move-in ready renovations and value-add potential.

    1131 S Broom St, Wilmington, DE 19805
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    Wilmington Investment Opportunity: Two Units
    $230,000

    Wilmington Investment Opportunity: Two Units

    Row home with two kitchens, ideal for rental income.

    1212 W 3Rd St, Wilmington, DE 19805
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    Union Street Duplex For Sale
    $235,000

    Union Street Duplex For Sale

    Duplex with commercial and residential units, ideal for investors.

    202 N Union St, Wilmington, DE 19805
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    Investment Property Near Wilmington Zoo
    $279,900

    Investment Property Near Wilmington Zoo

    Two units, long-term tenants, separate utilities, well-maintained and updated.

    1806 N West St, Wilmington, DE 19802
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    Updated Duplex in Triangle Section
    $399,000

    Updated Duplex in Triangle Section

    Two-unit property with updates, spacious backyard, and garage.

    610 Concord Ave, Wilmington, DE 19802
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    Multi-Unit Property with Investor Potential
    $115,000

    Multi-Unit Property with Investor Potential

    Multi-unit property with renovation potential in Wilmington, being sold as-is.

    620 Concord Ave, Wilmington, DE 19802
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    Based on your search, we've compiled 11 Potential Opportunities for your consideration. Besides 11 Active listings in New Castle County, DE, we suggest exploring several alternatives:

    New Castle County, DE Duplexes Investment Opportunities Market Analysis

    Explore 11 duplexes for sale in New Castle County, DE, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 17,424 square feet of properties for sale, with an estimated market value of $1,780,000.

    Sale prices for duplexes in New Castle County, DE start at $155,000, averaging $296,666, and reaching up to $580,000 — 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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