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Sussex County, DE Office Buildings for Sale

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Wilmington, DE Dover, DE Lewes, DE Milford, DE Millsboro, DE Seaford, DE Newark, DE Milton, DE
20 properties
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Office Building with Basement
Updated: Jul 14
Office Building with Basement

123 W MARKET Street, Georgetown, DE 19947

$599,999
1.50 AC lot
3,000‑square‑foot office building on approximately 1.5 acres
UB3 zoning
On‑site parking lot
Basement
Central air conditioning; heat pump and pellet stove heating
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Medical Office with Expansion Space
Updated: Nov 10, 2025
Medical Office with Expansion Space

924 MIDDLEFORD Road, Seaford, DE 19973

$780,000
0.51 AC lot
3,053 sq. ft. of finished first‑floor medical office space
2,182 sq.ft. unfinished second floor with separate access and interior stair connection
Reception, administrative offices, exam rooms, bathrooms, staff lounge, storage, and mechanical rooms
Adjacent parcel on the west side included
0.51‑acre combined property
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Small Office Building
Small Office Building

26286 SEAFORD Road, Seaford, DE 19973

$280,000
0.68 AC lot

Multiple private rooms and on-site parking support professional and service-oriented business operations.

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Freestanding Commercial Building with BG Zoning
Freestanding Commercial Building with BG Zoning

1973 Bay Rd, Milford, DE 19963

$949,000
4,488 sqft

Fully leased freestanding building on high-visibility Bay Road, zoned BG for retail, office, and medical uses.

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Office Building with Parking
Office Building with Parking

602 N PORTER Street, Seaford, DE 19973

$399,900
0.29 AC lot

Office property with central air, an on-site parking lot, and access to Rt. 20.

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Zoned UB3 Office Building
Zoned UB3 Office Building

123 W MARKET STREET, Georgetown, DE 19947

$599,999
3,000 sqft 1.50 AC lot

Office building on a large lot with on-site parking, zoned UB3 for professional use in Georgetown, Delaware.

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Commercial Property on Major Highway
Commercial Property on Major Highway

8991 REDDEN Rd, Bridgeville, DE 19933

$1,250,000
4,200 sqft 2.00 AC lot

C-1 zoned commercial property on 2 acres for sale.

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Professional Office Building with Pond View
Professional Office Building with Pond View

924 Middleford Rd, Seaford, DE 19973

$780,000
5,235 sqft

Office building with expansion potential and adjacent parcel included.

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Milford Landmark Professional Brick Building
Milford Landmark Professional Brick Building

125 Causey Ave, Milford, DE 19963

$789,000
18,000 sqft

Three-story professional building with high visibility and flexible floor plans.

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Downtown Milford Investment Property
Downtown Milford Investment Property

105-111 NE Front Street, Milford, DE 19963

$1,990,000
10,712 sqft

Fully-tenanted professional office space in Milford, Delaware.

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Professional Office Building with Parking
Professional Office Building with Parking

26286 Seaford Rd, Seaford, DE 19973

$280,000
1,440 sqft

Small office building suited for professional firms and service businesses.

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Modern Self-Storage Facility
Modern Self-Storage Facility

24077 Country Living Rd, Millsboro, DE 19966

Contact for pricing
68,873 sqft

Self-storage property with climate-controlled and drive-up units plus a separate professional office building.

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Freestanding Office Building
Freestanding Office Building

16337 COASTAL HIGHWAY, Lewes, DE 19958

Contact for pricing
1,300 sqft

Standalone professional office with reception, private offices, basement storage, and dedicated on-site parking.

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Manufacturing Property with Warehouse
Manufacturing Property with Warehouse

7494 Federalsburg Road, Bridgeville, DE 19933

Contact for pricing
240,258 sqft 13.48 AC lot

M-1 manufacturing facility combining warehouse, repair, machine shop, office, and residential improvements across a multi-building campus.

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Three-Suite Office Building
Three-Suite Office Building

800 Airport Road, Milford, DE 19963

$2,000,000

Office property includes suites currently leased to medical professionals.

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Two-Story Office Building
Two-Story Office Building

103 W PINE St, Georgetown, DE 19947

$399,000

Five private offices and a conference room provide a functional professional workspace.

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Freestanding Office Near Ocean View Beach Club
Freestanding Office Near Ocean View Beach Club

25 Beach Club Avenue, Ocean View, DE 19970

$450,000

Standalone office positioned at the entrance to a 300-unit planned community in eastern Sussex County.

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High-Visibility Retail Office Building
High-Visibility Retail Office Building

18451 SUSSEX HIGHWAY, Bridgeville, DE 19933

$1,499,000

A 3-acre site with a block building, HVAC, concrete floors, and ample parking along a heavily traveled corridor.

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Well-Maintained Office Building
Well-Maintained Office Building

543 N Shipley St, Seaford, DE 19973

Contact for pricing
5,912 sqft

A well-maintained 5,912 SF office building with ample parking and a flexible floor plan for multiple office configurations.

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Stone Creek Business Park Opportunity
Stone Creek Business Park Opportunity

10252 Stone Creek Drive, Laurel, DE 19956

Contact for pricing

Office, retail, and warehouse flex space for sale.

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Based on your search, we've compiled Potential Opportunities for your consideration. Besides 20 Active Listings in Sussex County, DE

Sussex County, DE Office Buildings Market Trends and Statistics

Explore 20 office buildings for sale in Sussex County, DE, showcased through 20 active listings on our real estate platform. These investment opportunities span a total of 363,418 square feet of properties for sale, with an estimated market value of $13,045,898.

Sale prices for commercial office buildings in Sussex County, DE start at $280,000, averaging $869,726, and reaching up to $2,000,000 — 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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