Duplex

New Castle County, DE Duplexes for Sale

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Wilmington, DE Dover, DE Lewes, DE Milford, DE Millsboro, DE Seaford, DE Newark, DE Milton, DE
27 properties
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Brick Duplex With Separate Entrances
Updated: Apr 18
Brick Duplex With Separate Entrances

1001 & 1003 W. 8th St. W 8TH Street, Wilmington, DE 19806

$950,000
4,350 sqft 0.11 AC lot
Two‑unit duplex with separate entrances
1001 includes four bedrooms; 1003 includes five
4,350 square feet on a 0.1133‑acre parcel
Shared basement provides additional utility space
Brick Colonial construction dating to 1889
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Two-Unit Duplex
Updated: Oct 4
Two-Unit Duplex

2719 N JEFFERSON Street, Wilmington, DE 19802

$275,000
1,650 sqft 0.05 AC lot
Two apartments: one 1‑bedroom unit and one 2‑bedroom unit
1,650 square feet on a 0.05‑acre lot
Separate gas and electric meters, two electric panels, two boilers, and two hot water tanks; water is shared
Basement has an exterior entrance and space for storage and laundry
Brick construction; built in 1930
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Creekside Duplex with Two Units
Creekside Duplex with Two Units

16 WHITE CLAY Drive, Newark, DE 19711

$595,000
1,575 sqft 0.50 AC lot

Two residential units offer three bedrooms, separate utilities, and individual HVAC systems near Main Street and the University of Delaware.

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Duplex with Creek Views
Duplex with Creek Views

16 White Clay Dr, Newark, DE 19711

$595,000
1,575 sqft 0.50 AC lot

Two separate residences feature individual HVAC, laundry appliances, and utility services for distinct household operation.

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Renovated Two-Unit Duplex
Renovated Two-Unit Duplex

811 BENNETT Street, Wilmington, DE 19801

$425,000
1,925 sqft 0.05 AC lot

Separate three-bedroom and two-bedroom residences offer flexibility for rental or owner occupancy.

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Brick Duplex with Off-Street Parking
Brick Duplex with Off-Street Parking

209 N BROOM Street, Wilmington, DE 19805

$375,000
2,200 sqft 0.04 AC lot

Two residential units offer flexible layouts for rental use or owner occupancy near downtown Wilmington.

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Duplex with Private Decks
Duplex with Private Decks

623 CONCORD Avenue, Wilmington, DE 19802

$295,000
1,675 sqft 0.07 AC lot

Two-unit brick property with in-unit laundry, outdoor decks, and a flexible owner-occupant or rental configuration.

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Mixed-Use Property With Three Bays
Mixed-Use Property With Three Bays

9 E 44TH STREET, Wilmington, DE 19802

$499,000
5,259 sqft

Mixed-use configuration combines separately accessed residential areas with substantial street-level commercial space and outdoor lot area.

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Brick Duplex with Two Units
Brick Duplex with Two Units

2521 N TATNALL Street, Wilmington, DE 19802

$250,000
1,525 sqft 0.04 AC lot

Two separate living spaces include refrigerator and stove appliances.

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Two-Unit Cape Cod Duplex
Two-Unit Cape Cod Duplex

310 SILVERBROOK Drive, Wilmington, DE 19804

$399,900
1,425 sqft 0.15 AC lot

Permitted two-unit layout includes separate entries, private laundry areas, and a detached garage.

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Three-Story Mixed-Use Building
Three-Story Mixed-Use Building

12 Trolley Sq, Wilmington, DE 19806

$1,050,000
2,940 sqft

Three condominium units combine a former ground-floor restaurant with two leased residential apartments above.

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2-Unit Duplex with Separate Utilities
2-Unit Duplex with Separate Utilities

2719 N Jefferson St, Wilmington, DE 19802

$275,000
1,650 sqft

Two apartments have distinct floor plans, with basement access and separate utility systems apart from water.

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Two-Unit Duplex with Garage
Two-Unit Duplex with Garage

412 W 30TH STREET, Wilmington, DE 19802

$275,000
1,725 sqft

The property includes an attached garage and a separate rear garage of substantial size.

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Turnkey Duplex Investment Property
Turnkey Duplex Investment Property

209 N BROOM STREET, Wilmington, DE 19805

$375,000
2,200 sqft

Turnkey duplex built in 1900 with two units offering 3 and 4 bedrooms plus on-site parking opportunity.

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Duplex with Updated Electrical
Duplex with Updated Electrical

1607 W 4th St, Wilmington, DE 19805

$230,000
1,800 sqft

Two residential units offer distinct layouts, including a renovated one-bedroom residence and a larger upper-level unit with bonus space.

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Renovated Duplex
Renovated Duplex

811 BENNETT STREET, Wilmington, DE 19801

$425,000
1,925 sqft

Two apartments offer separate bedroom and bath configurations, central air conditioning, and security systems.

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Duplex with Private Rear Decks
Duplex with Private Rear Decks

623 Concord Ave, Wilmington, DE 19802

$299,999
1,675 sqft

Two units provide separate laundry facilities and outdoor deck space for residential use.

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Two-Unit Duplex with Basement
Two-Unit Duplex with Basement

917 Vandever Avenue, Wilmington, DE 19802

$259,000
2,100 sqft

Both residences have three bedrooms, one bath, and separate entrances.

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Duplex with Detached Two-Car Garage
Duplex with Detached Two-Car Garage

310 Silverbrook Dr, Wilmington, DE 19804

$399,900
1,425 sqft

Permitted two-unit residence with separate laundry areas and additional detached garage space.

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End-Unit Duplex with Garages
End-Unit Duplex with Garages

600 Homestead Rd, Wilmington, DE 19805

$260,000
1,575 sqft

Two residential units feature separate utility service, window A/C, and individual one-car garages.

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Two-Unit Duplex
Two-Unit Duplex

2521 N Tatnall St, Wilmington, DE 19802

$250,000
1,525 sqft

Duplex with two separate living spaces and access to nearby parks, restaurants, and public transportation.

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Furnished Renovated Duplex
Furnished Renovated Duplex

1220 N King St, Wilmington, DE 19801

$599,900
2,400 sqft

Two residences share a renovated three-story layout with separate building systems and private off-street parking.

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Vacant Brick Duplex with Basement Potential
Vacant Brick Duplex with Basement Potential

2522 N WEST STREET, Wilmington, DE 19802

$189,900
2,550 sqft

Detached brick duplex with two-bedroom units, separate utility metering, and a partially configured lower level.

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Updated Duplex with Historic Character
Updated Duplex with Historic Character

1014 N ADAMS STREET, Wilmington, DE 19801

$299,000
1,425 sqft

Two residential units offer matching bedroom and bath layouts with updated interiors in Wilmington’s Trinity Vicinity.

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New Castle County, DE Duplexes Market Trends and Statistics

Explore 27 duplexes for sale in New Castle County, DE, showcased through 27 active listings on our real estate platform. These investment opportunities span a total of 53,074 square feet of properties for sale, with an estimated market value of $10,715,599.

Sale prices for two-family homes in New Castle County, DE start at $189,900, averaging $412,138, and reaching up to $1,050,000 — 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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