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New Castle County, DE Office Buildings for Sale

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Wilmington, DE Dover, DE Milford, DE Millsboro, DE Lewes, DE Seaford, DE Frankford, DE Newark, DE
16 properties
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Multi-Tenant Office Building with Private Parking
Updated: Mar 25
Multi-Tenant Office Building with Private Parking

2400 W 4TH ST, Wilmington, DE 19805

$950,000
8,000 sqft 0.34 AC lot
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.
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Two-Story Office Building with Suites
Updated: Mar 9
Two-Story Office Building with Suites

1501 N WALNUT Street, Wilmington, DE 19801

$1,100,000
0.19 AC lot
Fully renovated two‑story office building with central heating and masonry/brick construction
Mechanically divided into 4 suites, with potential for additional/flexible suite configurations on both floors
Each floor includes one men’s bathroom and one women’s bathroom for staff and visitor convenience
Rear parking available, plus on‑street parking and a parking lot with fenced parking areas
Parking and office space designed for owner‑user or multi‑suite use, supporting multi‑tenant occupancy options
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Office Building with Private Parking
Office Building with Private Parking

2417 SILVERSIDE RD, Wilmington, DE 19810

$895,000
0.40 AC lot

Professionally maintained office building with five offices, private main office, and parking for up to 20 vehicles.

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North Wilmington Office Building For Sale
North Wilmington Office Building For Sale

1200 Philadelphia Pike, Wilmington, DE 19809

$3,200,000
30,000 sqft

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

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Highly Visible Commercial Property
Highly Visible Commercial Property

4001 Miller Rd, Wilmington, DE 19802, Wilmington, DE 19802

$1,500,000
12,836 sqft

Commercial property for sale with high visibility and accessibility.

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Stand Alone Office Building
Stand Alone Office Building

803 N Broom St, Wilmington, DE

$895,000
8,800 sqft 0.33 AC lot

Stand alone office building near University and Whist Club.

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Income-Generating Office/Retail Building For Sale
Income-Generating Office/Retail Building For Sale

616 N Union St, Wilmington, DE

$875,000
7,862 sqft 0.31 AC lot

Two-story office/retail building on North Union Street, Wilmington.

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Centerville Office Building For Sale
Centerville Office Building For Sale

5809 Kennett Pike, Wilmington, DE 19807

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10,691 sqft

Three-level office building in desirable Centerville location.

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Class A Office Space Available
Class A Office Space Available

405 Silverside Road, Wilmington, DE 19809

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50,000 sqft

Premier office space in North Wilmington with highway access.

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Renovated Office Building in Wilmington
Renovated Office Building in Wilmington

1501 N WALNUT St, Wilmington, DE 19801

$1,100,000

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

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Two-Building Office Center with Amenities
Two-Building Office Center with Amenities

2751 Centerville Rd, Wilmington, DE 19808

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100,000 sqft

Two Class A office buildings with on-site amenities.

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Two-Building Office Complex For Sale
Two-Building Office Complex For Sale

2711 Centerville Road, Wilmington, DE 19808

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100,000 sqft

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

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Office Building in Newark, DE
Office Building in Newark, DE

800 Barksdale Rd, Newark, DE

$4,997,000
30,208 sqft 2.12 AC lot

30,208 SF office building for sale.

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Premier Newark Business Park
Premier Newark Business Park

100 Lake Drive, Newark, DE 19702

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28,050 sqft

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

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Wilmington Office/Flex Space For Sale
Wilmington Office/Flex Space For Sale

101 N Gray Ave, Wilmington, DE 19805

$495,000
4,708 sqft

4,708 SF office/flex space with warehouse and drive-in door.

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Corporate Campus Office Building
Corporate Campus Office Building

200 Biddle Ave., Newark, DE 19702

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Office building in corporate campus with ample parking.

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Based on your search, we've compiled 20 Potential Opportunities for your consideration. Besides 16 Active listings in New Castle County, DE, we suggest exploring several alternatives: plus 4 Land Listings that present a potential for development.

Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

Land in Redevelopment Zone
Land in Redevelopment Zone

L18-20 W BROAD Street, Paulsboro, NJ 08066

$410,000
0.21 AC lot

Land assemblage in Paulsboro, close to I-295.

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Commercial Lot on Route 40
Commercial Lot on Route 40

2515 PULASKI HIGHWAY, North East, MD 21901

$245,000
0.81 AC lot

Commercial or office lot on busy Rt. 40 for sale.

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Prime Land in Sewell, NJ
Prime Land in Sewell, NJ

L13 BRIDGETON Pike, Sewell, NJ 08080

$4,000,000
39.04 AC lot

39 +/- acres with road frontage in Mantua Township.

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Philadelphia Land Development Opportunity
Philadelphia Land Development Opportunity

5421 MARKET Street, Philadelphia, PA 19139

$30,000
0.02 AC lot

Two adjacent lots zoned for commercial and residential development.

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New Castle County, DE Office Buildings Market Trends and Statistics

Explore 16 office buildings for sale in New Castle County, DE, showcased through 16 active listings on our real estate platform. These investment opportunities span a total of 102,414 square feet of properties for sale, with an estimated market value of $12,912,000.

Sale prices for office properties in New Castle County, DE start at $495,000, averaging $1,844,571, and reaching up to $4,997,000 — 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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