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New Castle County, DE Office Buildings for Sale

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31 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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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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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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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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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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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
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Main Street Newark Office Space
$2,500,000
11,578 SF

Main Street Newark Office Space

11,578 SF office space in the heart of Newark.

77 E Main St, Newark, DE, Newark, DE 19711
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Wilmington Office Building For Sale
$1,250,000
7,200 SF

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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Office Building on College Avenue
$695,000
2,955 SF

Office Building on College Avenue

Office building for sale on busy S. College Avenue.

907 S College Ave, Newark, DE
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Corporate Campus in New Castle
Contact for pricing

Corporate Campus in New Castle

Corporate campus with renovated lobby and convenient highway access.

10 Corporate Circle, New Castle, DE 19720
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North Wilmington Office Building For Sale
$3,200,000
30,000 SF

North Wilmington Office Building For Sale

Three-story office building in North Wilmington with flexible spaces.

1200 Philadelphia Pike, Wilmington, DE 19809
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Premier Newark Business Park
Contact for pricing
28,050 SF

Premier Newark Business Park

350-acre business park with office spaces in Newark, Delaware.

100 Lake Drive, Newark, DE 19702
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Wilmington Office Building For Sale
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5,760 SF

Wilmington Office Building For Sale

5,760 SF office building in Wilmington's thriving downtown core.

921 N Orange St, Wilmington, DE 19801
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Class A Office Space Available
Contact for pricing
50,000 SF

Class A Office Space Available

Premier office space in North Wilmington with highway access.

405 Silverside Road, Wilmington, DE 19809
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Stand Alone Office Building
$895,000
8,800 SF

Stand Alone Office Building

Stand alone office building near University and Whist Club.

803 N Broom St, Wilmington, DE
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Newark Office/Industrial Building For Sale
Contact for pricing
29,750 SF

Newark Office/Industrial Building For Sale

29,750 SF office/industrial building in Pencader Corporate Center.

211 Lake Dr, Newark, DE 19702
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Two-Building Office Center with Amenities
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100,000 SF

Two-Building Office Center with Amenities

Two Class A office buildings with on-site amenities.

2751 Centerville Rd, Wilmington, DE 19808
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Corporate Campus Office Building
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Corporate Campus Office Building

Full-service office building in a corporate campus setting.

100 Biddle Avenue, Newark, DE 19702
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Two-Building Office Complex For Sale
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100,000 SF

Two-Building Office Complex For Sale

Two four-story office buildings with on-site amenities and ample parking.

2711 Centerville Road, Wilmington, DE 19808
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Corporate Campus Office Building
Contact for pricing

Corporate Campus Office Building

Office building in corporate campus setting with ample parking.

300 Biddle Avenue, Newark, DE 19702
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Corporate Campus Office Building
Contact for pricing

Corporate Campus Office Building

Office building in corporate campus with ample parking.

200 Biddle Ave., Newark, DE 19702
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New Castle County, DE Office Buildings Investment Opportunities Market Analysis

Explore 31 office buildings for sale in New Castle County, DE, showcased through 31 active listings on our real estate platform. These investment opportunities span a total of 40,511 square feet of properties for sale, with an estimated market value of $2,945,000.

Sale prices for office properties in New Castle County, DE start at $895,000, averaging $981,666, and reaching up to $1,100,000 — 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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