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Duplexes for sale in Old Westbury

1,869 available properties
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Updated
Foreclosure
House
House for sale in Nassau, New York
Request Details
Nassau, New York

3 Bathrooms

3,346 sq.ft

1 day + 15 hours ago

39 pictures Arrow icon pointing to the right
New
House
House for sale in Nassau, New York
USD 3,175,000
Nassau, New York
GardenDeckEquipped kitchenSwimming poolCellar

1 day + 15 hours ago

30 pictures Arrow icon pointing to the right
New
House
House for sale in Nassau, New York
USD 2,799,000
Nassau, New York
FireplaceEquipped kitchenParking

1 day + 15 hours ago

30 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 5,390,000
Nassau, New York

5 Bedrooms

6 Bathrooms

5,600 sq.ft

Equipped kitchen

4 days + 15 hours ago

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House
House for sale in Nassau, New York
USD 5,390,000
Nassau, New York

5 Bedrooms

6 Bathrooms

5,600 sq.ft

5 days + 15 hours ago

42 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 1,988,000
Nassau, New York

5 Bedrooms

3 Bathrooms

3,850 sq.ft

Office roomFireplaceEquipped kitchen

6 days + 15 hours ago

25 pictures Arrow icon pointing to the right
Updated
House
House for sale in Nassau, New York
USD 2,043,461
Nassau, New York

2,589 sq.ft

PatioGardenFireplaceSwimming pool

1 day + 15 hours ago

30 pictures Arrow icon pointing to the right
Updated
House
House for sale in Nassau, New York
USD 6,835,890
Nassau, New York

6 Bedrooms

7,385 sq.ft

PatioEquipped kitchen

1 day + 15 hours ago

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Land
Land for sale in Nassau, New York
USD 2,650,000
Nassau, New York
Terrace

2 weeks + 15 hours ago

27 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 2,998,000
Nassau, New York

4 Bedrooms

4 Bathrooms

3,930 sq.ft

GardenFireplaceEquipped kitchen

Apr 16, 2026

28 pictures Arrow icon pointing to the right
Property for sale in Nassau, New York
USD 2,998,000
Nassau, New York

4 Bedrooms

5 Bathrooms

3,930 sq.ft

GardenFireplaceEquipped kitchen

Apr 11, 2026

29 pictures Arrow icon pointing to the right
Updated
House
House for sale in Nassau, New York
USD 5,650,911
Nassau, New York

9 Bedrooms

8,000 sq.ft

GardenSaunaEquipped kitchen

1 day + 15 hours ago

37 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 2,499,000
Nassau, New York

4 Bedrooms

4 Bathrooms

3,814 sq.ft

GardenDeckFireplaceEquipped kitchenSwimming pool

2 weeks + 2 days ago

35 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 2,199,000
Nassau, New York

5 Bedrooms

3 Bathrooms

4,600 sq.ft

GardenOffice roomDeckFireplaceEquipped kitchenParkingSwimming pool

Jun 21, 2026

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House
House for sale in Nassau, New York
USD 2,799,000
Nassau, New York

4 Bedrooms

3 Bathrooms

5,241 sq.ft

FireplaceEquipped kitchenParking

May 29, 2026

30 pictures Arrow icon pointing to the right
Updated
House
House for sale in Nassau, New York
USD 13,413,778
Nassau, New York

35 Bedrooms

GardenSwimming poolEquipped kitchenParking

1 day + 15 hours ago

39 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 5,900,000
Nassau, New York

5 Bedrooms

7 Bathrooms

7,479 sq.ft

FireplaceEquipped kitchenParkingSwimming pool

4 days + 15 hours ago

35 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 28,000,000
Nassau, New York

7 Bedrooms

13 Bathrooms

SaunaSwimming poolGymEquipped kitchen

6 days + 15 hours ago

5 pictures Arrow icon pointing to the right
Land
Land for sale in Nassau, New York
USD 5,675,000
Nassau, New York

1 week + 3 days ago

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House
House for sale in Nassau, New York
USD 2,999,000
Nassau, New York

5 Bedrooms

4 Bathrooms

5,001 sq.ft

FireplaceEquipped kitchen

3 weeks + 2 days ago

32 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 3,500,000
Nassau, New York

6 Bedrooms

7 Bathrooms

8,000 sq.ft

PatioGardenEquipped kitchen

Jun 23, 2026

37 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 2,999,000
Nassau, New York

5 Bedrooms

4 Bathrooms

5,001 sq.ft

PatioGardenFireplaceEquipped kitchenParkingAir conditioningSwimming pool

Jun 20, 2026

31 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 11,750,000
Nassau, New York

20 Bedrooms

10,000 sq.ft

GardenSwimming poolEquipped kitchenParking

Jun 16, 2026

49 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 4,999,988
Nassau, New York

5 Bedrooms

6 Bathrooms

5,875 sq.ft

Equipped kitchenCellar

Jun 16, 2026

35 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 28,000,000
Nassau, New York

7 Bedrooms

13 Bathrooms

25,000 sq.ft

SaunaSwimming poolGymEquipped kitchen

Jun 15, 2026

6 pictures Arrow icon pointing to the right
Land
Land for sale in Nassau, New York
USD 1,999,000
Nassau, New York
Swimming pool

Jun 11, 2026

44 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 5,795,000
Nassau, New York

5 Bedrooms

8 Bathrooms

6,563 sq.ft

FireplaceEquipped kitchen

Jun 09, 2026

5 pictures Arrow icon pointing to the right
Land
Land for sale in Nassau, New York
USD 5,800,000
Nassau, New York

Jun 08, 2026

48 pictures Arrow icon pointing to the right
House
House for sale in Nassau, New York
USD 6,990,000
Nassau, New York

6 Bedrooms

8 Bathrooms

8,001 sq.ft

FireplaceEquipped kitchen

Jun 05, 2026

5 pictures Arrow icon pointing to the right
Land
Land for sale in Nassau, New York
USD 3,498,000
Nassau, New York

Jun 03, 2026

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