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    New Castle County, DE Office Properties & Spaces for Sale

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    Wilmington, DE Dover, DE Millsboro, DE
    75 results
    Versatile Office Building with Parking
    $950,000
    0.34 Acres

    Versatile Office Building with Parking

    2400 W 4TH ST, Wilmington, DE 19805

    Multi-tenant office building with private parking in Wilmington, DE.

    • Centrally located with a versatile layout suitable for various professional uses.
    • Private parking lot, a rare and valuable amenity.
    • Dual entrance configuration allows for flexible occupancy options.
    • Approximately 8,000 square feet of finished office space, plus additional workspace and storage.
    • Well‑maintained property suitable for owner‑occupant or investor.
    Updated: Mar 25
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    Renovated Office Building in Wilmington
    $1,100,000
    0.19 Acres

    Renovated Office Building in Wilmington

    1501 N WALNUT Street, Wilmington, DE 19801

    Two-story office building in prime location with flexible suite arrangements.

    • Prime location: Just five blocks from Rodney Square and steps from the Brandywine River in Wilmington, DE.
    • Fully renovated, move‑in‑ready two‑story office building.
    • Flexible space: Mechanically divided into 4 suites with potential for more, suitable for owner‑users, investors, or growing companies.
    • Income potential: Option to lease additional suites for supplemental income.
    • Parking: Features parking at the rear of the building.
    Updated: Mar 9
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    North Wilmington Commercial Opportunity
    $895,000
    0.40 Acres

    North Wilmington Commercial Opportunity

    Premium commercial property in North Wilmington with high visibility and accessibility.

    2417 SILVERSIDE RD, Wilmington, DE 19810
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    Commercial Unit in Desirable Condominium
    $125,000

    Commercial Unit in Desirable Condominium

    Private first-floor commercial unit suitable for various business needs.

    1401 PENNSYLVANIA Avenue, Wilmington, DE 19806
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    North Market Street Redevelopment Opportunity
    $475,000
    4,180 SF

    North Market Street Redevelopment Opportunity

    4,180 SF redevelopment opportunity in Wilmington's urban commercial area.

    1701 N MARKET St, Wilmington, DE 19802
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    Wilmington Office and Warehouse Space
    $300,000

    Wilmington Office and Warehouse Space

    Flexible office and warehouse space with secure, fenced yard.

    1517 W 3RD St, Wilmington, DE 19805
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    Wilmington Commercial Redevelopment Opportunity
    $845,000
    2,000 SF

    Wilmington Commercial Redevelopment Opportunity

    Infill commercial site in high-traffic Brandywine corridor.

    1809 Marsh Rd, Wilmington, DE 19810
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    Established Medical Office Condo
    $470,000

    Established Medical Office Condo

    Turn-key medical office condo with ample parking and easy access.

    2601 Annand Dr, Wilmington, DE 19808
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    Commercial Property in Prime Location
    $1,000,000
    2,700 SF

    Commercial Property in Prime Location

    1.5 acre commercial property near major highways, high traffic.

    2994 NEW CASTLE AVENUE, New Castle, DE 19720
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    Renovated Office Building in Wilmington
    $1,100,000

    Renovated Office Building in Wilmington

    Fully renovated two-story office building in a prime Wilmington location.

    1501 N WALNUT St, Wilmington, DE 19801
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    First-Floor Commercial Unit Opportunity
    $125,000

    First-Floor Commercial Unit Opportunity

    Versatile commercial unit in a desirable Wilmington condominium.

    1401 PENNSYLVANIA Ave 103, Wilmington, DE 19806
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    Claymont Office Building For Sale
    $459,000
    5,400 SF

    Claymont Office Building For Sale

    Office building with 5400 square feet available for sale.

    3102 W Brandywine Ave, Claymont, DE 19703
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    Corner Building in Richardson Park
    $200,000

    Corner Building in Richardson Park

    Prominent corner building suitable for retail, office, or residential use.

    36 BELMONT Ave, Wilmington, DE 19804
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    Wilmington Office Building For Sale
    $550,000
    4,180 SF

    Wilmington Office Building For Sale

    Investment opportunity in Wilmington's Central Business District.

    1701 N Market St, Wilmington, DE 19802
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    Fort DuPont Commercial Opportunity
    Contact for pricing
    20,000 SF

    Fort DuPont Commercial Opportunity

    Commercial space in revitalized mixed-use community, Delaware City.

    471 Oak Lane, Delaware City, DE 19706
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    Wilmington Office Building For Sale
    $1,250,000

    Wilmington Office Building For Sale

    Multi-story office building in Wilmington's Central Business District.

    1205 N Orange St, Wilmington, DE 19801
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    Newark Office Building For Sale
    $890,000
    6,000 SF

    Newark Office Building For Sale

    Commercial building with office space and long-term lease.

    Listing #38 - 1003 S Chapel Street, Newark, DE, Newark, DE 19702
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    Mixed-Use Property with Liquor License
    $465,000

    Mixed-Use Property with Liquor License

    Mixed-use property featuring a liquor store and residential unit.

    2300 N MARKET St, Wilmington, DE 19802
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    Wilmington Office Space For Sale
    Contact for pricing
    8,990 SF

    Wilmington Office Space For Sale

    4,921 SF office space with high visibility.

    Wilmington, New Castle, DE 19808
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    Professional Office Condo For Sale
    $195,000

    Professional Office Condo For Sale

    Office condo in well-maintained complex, centrally located with highway access.

    2601 Annand Dr, Suite 20, Wilmington, DE 19808
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    North Wilmington Commercial Redevelopment Site
    $895,000
    2,000 SF

    North Wilmington Commercial Redevelopment Site

    Commercial redevelopment site in North Wilmington's Brandywine corridor.

    1809 Marsh Rd, Wilmington, DE 19810
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    Mixed-Use Building in Historic District
    $570,000
    4,096 SF

    Mixed-Use Building in Historic District

    Live/work property with income potential in Delaware City's historic district.

    Delaware City, DE 19706
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    Commercially Zoned Retail/Apt Properties
    $600,000

    Commercially Zoned Retail/Apt Properties

    Three commercially zoned retail/apt properties with parking lot.

    16 MARYLAND Ave S, Wilmington, DE 19805
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    Three-Story Office Building Near Downtown
    $249,900
    0.03 Acres

    Three-Story Office Building Near Downtown

    Three-story office building in a convenient downtown-adjacent location.

    1216 N KING STREET, Wilmington, DE 19801
    View details

    New Castle County, DE Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 1451 office properties & spaces for sale in New Castle County, DE, showcased through 75 active listings on our real estate platform. These investment opportunities span a total of 331,314 square feet of properties for sale, with an estimated market value of $53,668,360.

    Sale prices for office spaces in New Castle County, DE start at $189,900, averaging $1,677,136, and reaching up to $5,240,560 — 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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