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Old Westbury, NY Multifamily Properties for Sale

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Carle Place, NY Garden City, NY Jericho, NY Hicksville, NY East Meadow, NY Williston Park, NY Levittown, NY East Hills, NY
Renovated Duplex with Separate Utilities
Updated: Apr 27
Renovated Duplex with Separate Utilities

241 Covert Street, Westbury, NY 11590

$879,999
0.12 AC lot
Legal two‑family residence with separate electric meters
2010 renovations included plumbing, electrical, sheetrock, and mechanical updates
Separate high‑efficiency boilers for each unit
0.1158‑acre lot with driveway parking
First‑floor bedroom and full bath, eat‑in kitchen, storage, and basement
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Colonial Duplex with Fenced Yard
Updated: Dec 19, 2025
Colonial Duplex with Fenced Yard

32 Longfellow Avenue, Westbury, NY 11590

$1,169,888
0.28 AC lot
Duplex on a 0.2755‑acre level lot
Colonial‑style property built in 1924
First‑floor bedroom and full bath
Hardwood flooring and central air
Formal dining room and eat‑in kitchen
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16 acre compound with legal residential units
16 acre compound with legal residential units

Old Westbury, Old Westbury, NY 11568

$13,900,000
15,000 sqft 16.00 AC lot

16 acre compound with legal residential units

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See what stands out in Nassau County

We check every for-sale listing in the county against comparable properties across the country. Most price about where you would expect. A few are worth a second look.

We check every listing here. A few are worth a second look.

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Based on your search, we've compiled 9 Potential Opportunities for your consideration. Besides 3 Active listings in Old Westbury, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, plus 2 Land Listings that present a potential for development.

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Three-Unit Multifamily Property
Three-Unit Multifamily Property

343 Roslyn Ave, Carle Place, NY 11514

$1,688,000
3,860 sqft 0.11 AC lot

Two residences share one parcel with driveway parking and varied unit layouts.

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Two-Unit Duplex Property
Two-Unit Duplex Property

27 & 31 Kennedy Road, East Hills, NY 11577

$1,200,000
1,672 sqft

Tenant-occupied duplex with month-to-month leases, private yards, and flexible unit configurations.

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Three-Unit Colonial Property
Three-Unit Colonial Property

343 Roslyn Avenue, Carle Place, NY 11514

$1,688,000
0.11 AC lot

Two residences on one parcel provide a three-unit residential income configuration with driveway parking and public utilities.

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Two-Unit Cottage Duplex
Two-Unit Cottage Duplex

27 & 31 Kennedy Road, East Hills, NY 11577

$1,200,000
0.09 AC lot

Tenant-occupied duplex with month-to-month leases, private yards, and access to East Hills Park amenities.

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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.

Flatbush Development Property For Sale
Flatbush Development Property For Sale

14 E 32nd Street lot: 13, Brooklyn, NY 11226

$1,249,000
1,407 sqft 0.09 AC lot

40 x 100 lot with R6, C1-2 zoning.

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Detached Two-Family Duplex
Detached Two-Family Duplex

69 Martense Street, Brooklyn, NY 11226

$1,888,888
0.10 AC lot

Detached two-family residence with two three-bedroom apartments, a separate-entry basement, and public water and sewer service.

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Old Westbury, NY Multifamily Properties Market Trends and Statistics

Explore 3 multifamily properties for sale in Old Westbury, NY, showcased through 3 active listings on our real estate platform. These investment opportunities span a total of 15,000 square feet of properties for sale, with an estimated market value of $15,949,887.

Sale prices for multifamily properties in Old Westbury, NY start at $879,999, averaging $5,316,629, and reaching up to $13,900,000 — 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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Demographics Overview

Population 4,198
Population Growth (5Y) -10.8%
Median Household Income $250,001

High-Yield Neighborhoods for Investment

Identify Old Westbury submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

Neighborhood Average Price
11568 $13.9M

Taxes & Financing

Average Loan-to-Value 65.0%

Listings Trend

New vs delisted commercial listings in Nassau County

New Delisted

Total CRE Inventory on Market (SF)

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