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Sussex County, DE Office Spaces for Sale

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Wilmington, DE Dover, DE Lewes, DE Milford, DE Millsboro, DE Seaford, DE Newark, DE Milton, DE
44 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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Victorian Mixed-Use Property
Updated: Oct 13
Victorian Mixed-Use Property

129 Union Street, Milton, DE 19968

$375,000
0.10 AC lot
Approximately 2,200 square feet on a 0.1‑acre lot
Built in 1905; ground‑floor commercial space with an upper‑level residence
Town Center zoning allows commercial and residential use, including retail, restaurant, salon, gallery, museum, and school operations
Residence includes 4 bedrooms, 2 bathrooms, and an office
Hardwood floors, stained‑glass windows, millwork, claw‑foot tubs, and a skylit sunroom
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Medical Office with Expansion Space
Medical Office with Expansion Space

924 MIDDLEFORD Road, Seaford, DE 19973

$780,000
0.51 AC lot

First-floor offices include reception, exam rooms, staff support areas, storage, and mechanical rooms.

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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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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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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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Industrial Property with Multiple Garages
Industrial Property with Multiple Garages

28883 Sussex Hwy, Laurel, DE 19956

$2,100,000
10,000 sqft 16.00 AC lot

Over 16 acres with a large block building, attached and detached storage garages, and recently installed septic and well.

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Versatile Commercial Building on 4.4 Acres
Versatile Commercial Building on 4.4 Acres

1120 S CENTRAL Ave, Laurel, DE 19956

$1,299,000
7,006 sqft 4.40 AC lot

7,006 SF building on 4.4 acres in Laurel, DE.

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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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Versatile Commercial Property on Dupont
Versatile Commercial Property on Dupont

719 S DUPONT Blvd, Milford, DE 19963

$625,000
4,408 sqft 0.95 AC lot

Two buildings totaling 4,408 SF on a sizable lot.

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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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Income-Producing Land with Development Potential
Income-Producing Land with Development Potential

26539 Lewes Georgetown Hwy, Harbeson, DE 19951

$2,200,000
4,500 sqft 7.18 AC lot

7.18±-acre CR-1 zoned property with income and development potential.

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Harbeson Commercial Property on Route 9
Harbeson Commercial Property on Route 9

26473 Lewes Georgetown Hwy, Harbeson, DE 19951

$1,390,000
2,000 sqft 0.98 AC lot

0.98-acre commercial property on Route 9 in Harbeson, Delaware.

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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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Seaford Medical Office Building For Sale
Seaford Medical Office Building For Sale

11 Fallon Ave, Seaford, DE 19973

$2,500,000
10,600 sqft

Well-maintained medical office building in Seaford, Sussex County.

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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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Milton Medical Park Investment Opportunity
Milton Medical Park Investment Opportunity

611 Federal Street, Milton, DE 19968

$3,975,000
12,860 sqft

Fully leased medical office park with expansion potential in Milton, DE.

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Retail Space with Private Offices
Retail Space with Private Offices

32191 NASSAU ROAD #5, Lewes, DE 19958

Contact for pricing
1,962 sqft

Flexible commercial layout with work areas, a kitchenette, private bathroom, and on-site parking.

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Professional Office Unit
Professional Office Unit

33712 WESCOATS ROAD #3, Lewes, DE 19958

Contact for pricing
1,767 sqft

Multi-level office space offers private rooms, reception, storage, and shared parking in an accessible professional setting.

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Medical Office Building with Tenant
Medical Office Building with Tenant

800 Concord Road, Seaford, DE 19973

Contact for pricing
4,800 sqft

Approximately 4,800 SF medical office building is occupied by Planned Parenthood under an in-place lease.

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Versatile Retail/Office Suite
Versatile Retail/Office Suite

512 W STEIN HIGHWAY #1, Seaford, DE 19973

Contact for pricing
6,400 sqft

Unit 1 storefront suite at 512 W Stein Highway offers flexible space for a range of business concepts.

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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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Sussex County, DE Office Spaces Market Trends and Statistics

Explore 72 office spaces for sale in Sussex County, DE, showcased through 44 active listings on our real estate platform. These investment opportunities span a total of 459,081 square feet of properties for sale, with an estimated market value of $31,904,798.

Sale prices for office properties in Sussex County, DE start at $280,000, averaging $1,227,107, and reaching up to $3,975,000 — 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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