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    New Castle County, DE Office Properties & Spaces for Sale

    85 results
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    Renovated Office Building in Wilmington
    $1,100,000
    0.19 Acres

    Renovated Office Building in Wilmington

    1501 N Walnut St, 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

    2417 Silverside Rd, Wilmington, DE 19810

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

    • Prime location off Foulk and Silverside Roads in North Wilmington with high visibility and accessibility.
    • Ample private parking with space for up to 20 vehicles.
    • Five well‑appointed offices, including four versatile suites and a spacious private main office.
    • Newer roof (installed in the last 5 years).
    • Recent system upgrades.
    Updated: Dec 5, 2025
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    Prime Commercial Property in NEW CASTLE
    $1,000,000
    1.51 Acres

    Prime Commercial Property in NEW CASTLE

    1.5-acre commercial property ideal for retail or office development.

    2994 New Castle Ave, New Castle, DE 19720
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    Commercial Unit in Desirable Condominium
    $125,000

    Commercial Unit in Desirable Condominium

    First-floor commercial unit perfect for professionals, entrepreneurs, or small business.

    1401 Pennsylvania Ave, Wilmington, DE 19806
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    Versatile Commercial Unit in Claymont
    Contact for pricing
    0.04 Acres

    Versatile Commercial Unit in Claymont

    Clean, quiet commercial unit with amenities and excellent accessibility.

    3722 Philadelphia Pike, Claymont, DE 19703
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    Marsh Road Commercial Opportunity
    $845,000

    Marsh Road Commercial Opportunity

    High-visibility commercial property suitable for various business types.

    1809 Marsh Rd, Wilmington, DE 19810
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    Renovated Trolley Square Office Condo
    $229,900

    Renovated Trolley Square Office Condo

    Unique loft-style office space in Wilmington's Trolley Square.

    1815 W 13Th St, Wilmington, DE 19806
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    Wilmington Office Buildings For Sale
    $575,000

    Wilmington Office Buildings For Sale

    Two adjoining parcels in Wilmington, DE, suitable for commercial or residential.

    825-827 N Washington St, Wilmington, DE 19801
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    Wilmington Commercial Property For Sale
    $2,600,000

    Wilmington Commercial Property For Sale

    Three-story commercial property in Wilmington with versatile space.

    715 N King St, Wilmington, DE 19801
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    Prime Redevelopment Opportunity in Wilmington
    $925,000

    Prime Redevelopment Opportunity in Wilmington

    Redevelopment opportunity in Brandywine Hundred with high visibility.

    2203 Silverside Rd, Wilmington, DE 19810
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    North Wilmington Commercial Property For Sale
    $895,000

    North Wilmington Commercial Property For Sale

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

    2417 Silverside Rd, Wilmington, DE 19810
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    Commercial Property with High Exposure
    $1,000,000

    Commercial Property with High Exposure

    1.5+/- acre commercial property with high traffic and visibility.

    2994 New Castle Ave, New Castle, DE 19720
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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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    Newark Office Building For Sale
    $890,000
    6,000 SF

    Newark Office Building For Sale

    Commercial building with office space and long-term lease.

    1003 S Chapel St, Newark, DE 19702
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    New Castle Avenue Commercial Opportunity
    $650,000

    New Castle Avenue Commercial Opportunity

    Commercial property with redevelopment potential on New Castle Avenue.

    3101 New Castle Ave, New Castle, DE 19720
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    Trolley Square Loft Office Condo
    $229,900

    Trolley Square Loft Office Condo

    Renovated office condo with loft-style flex space in Wilmington.

    1815 W 13Th St, Wilmington, DE 19806
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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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    Wilmington Commercial Redevelopment Opportunity
    $845,000

    Wilmington Commercial Redevelopment Opportunity

    Infill commercial site in high-traffic Brandywine corridor.

    1809 Marsh Rd, Wilmington, DE 19810
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    Office Unit on Busy Street
    $180,000

    Office Unit on Busy Street

    Office unit for sale on a high-traffic street.

    2910 N Market St, Wilmington, DE 19802
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    Unique Commercial Space in Wilmington
    $199,900

    Unique Commercial Space in Wilmington

    Spacious office with reception, break room, and individual offices.

    1401 Pennsylvania Ave, Wilmington, DE 19806
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    Wilmington Office Building For Sale
    $550,000

    Wilmington Office Building For Sale

    Investment opportunity in Wilmington's Central Business District.

    1701 N Market St, Wilmington, DE 19802
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    Updated Office Condo For Sale
    $210,000

    Updated Office Condo For Sale

    Office condo with recent updates, suitable for various professional uses.

    1601 Milltown Rd, Wilmington, DE 19808
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    New Castle County, DE Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 1461 office properties & spaces for sale in New Castle County, DE, showcased through 85 active listings on our real estate platform. These investment opportunities span a total of 76,617,693 square feet of properties for sale, with an estimated market value of $377,088,800.

    Sale prices for office spaces in New Castle County, DE start at $130,000, averaging $480,980, and reaching up to $9,580,000 — 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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    Browse Office properties & Spaces for Sale Near New Castle, DE

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