Nassau County, NY Office Spaces for Sale

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Updated: May 28

Mixed-Use Retail and Office Building

118-122 Hillside Avenue, Williston Park, NY 11596

$1,600,000

5,580 sqft

Mixed‑use commercial building built in 1950 at 118‑122 Hillside Avenue with approx. 5,580 SF retail/office space
3 oversized storefront windows and high ceilings with a versatile retail/office layout
Multiple private offices plus reception and conference areas
Bathrooms included, with unfinished basement suitable for storage or expansion
Includes 2 separate Half baths (per Karate space) and offices/storage, plus Half bath, workshop, and showroom (per Tailor space)

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118-122 Hillside Avenue, Williston Park, NY 11596

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Est. Cap Rate

6.9%
Above avg (5.9%)
Est. NOI

$111K
Annual
Price @ 7% Cap

$1.58M
Suggested
Last Sold

Sep 2022
$1M
Property Type

Store/Office (Mixed Use)
Built 1950

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Updated: Apr 29

Second-Floor Medical Office Condo

230 Hilton Avenue, Hempstead, NY 11550

$500,000

47,613 sqft 1.09 AC lot

About 1,800 SF condo medical office on the second floor, directly across from the elevators in a commercial office building
Year built: 1984; flat roof
Current layout includes 5 patient rooms, reception area, office, 2 storage rooms, and 2 restrooms
Building offers receptionist entrance and includes a large parking lot
HOA is $1,480/mo and includes all utilities; property tax is $9,500/yr

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Brick Professional Office Building

220 Old Country Road, Mineola, NY 11501

$4,800,000

0.21 AC lot

Renovated common areas and restrooms complement central air, natural gas heating, and a solid brick exterior.

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Freestanding Office & Medical Building

325 W Park Avenue, Long Beach, NY 11561

$2,950,000

0.23 AC lot

Single-story office/medical building with private offices, treatment rooms, central air, and abundant parking on Park Avenue.

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Freestanding Medical Office Building

325 W Park Avenue, Long Beach, NY 11561

$2,950,000

5,084 sqft 0.23 AC lot

Single-story office/medical layout with treatment rooms and ample on-site parking for patient and client access.

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Fully Occupied Brick Office Building

91 Carman Avenue, Cedarhurst, NY 11516

$2,390,000

0.08 AC lot

Brick construction, natural gas heat, and central air serve the office property.

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Office Property with Basement

Park Street, Atlantic Beach, NY 11509

$1,680,000

0.18 AC lot

Includes an established business and additional basement space configured for storage and offices.

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Ground-Floor Dental Office

210 Atlantic Avenue, Lynbrook, NY 11563

$170,000

1.99 AC lot

Renovated clinical suite with three operatories, contemporary finishes, and existing dental equipment.

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Mixed-Use Property with Transit Access

29 & 21-23 Broadway, Lynbrook, NY 11563

$4,300,000

0.71 AC lot

Two frame buildings offer office and multipurpose configurations with central air, driveway parking, and prominent signage.

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Medical Office Space with Storefront

1061 N Broadway, Massapequa, NY 11758

$3,350,000

0.23 AC lot

Medical office storefront with high 9' ceilings, central air, sprinklers, and 2 parking spaces.

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Commercial Office Building with Warehouse

150 Jerusalem Ave, Massapequa, NY 11758

$1,325,000

3,700 sqft 0.22 AC lot

Two-story office building with warehouse and residential dwelling.

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Office Building with Private Offices

600 Hicksville Road, Bethpage, NY 11714

$1,298,888

0.14 AC lot

Flexible interior includes open work areas, storage, and driveway and assigned parking.

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Standalone Office Building with Parking

2169 Wantagh Avenue, Wantagh, NY 11793

$699,999

0.07 AC lot

Standalone office building with private offices, waiting room, storage space, loft, and parking for 4–5 cars or trucks.

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Medical Office Condo with Sauna

New Hyde Park, NY 11040

$999,000

2,518 sqft

Third-floor condo in a Medical Arts Building with a customizable layout, private shower-equipped bathroom, and on-site parking.

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Two-Story Office Portfolio Opportunity

445 Northern Boulevard, Great Neck, NY 11021

$15,900,000

0.58 AC lot

Two contiguous three-story office buildings totaling approximately 48,000 RSF on a single Great Neck campus site.

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Storefront Property with Oversized Windows

118-122 Hillside Avenue, Williston Park, NY 11596

$1,600,000

0.15 AC lot

Storefront retail and office space with three oversized storefront windows, private offices, and multiple bathrooms.

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Medical or Professional Office Condo

204-233 E Shore Rd, Great Neck, NY 11023

$699,000

1,200 sqft

Vacant office condo includes four separate offices, a reception area, storage, and two half baths.

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Professional Office Building

146 E 2nd Street, Mineola, NY 11501

$1,600,000

0.15 AC lot

Existing layout includes reception space, private offices, an open work area, conference room, and employee kitchen.

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Commercial Office Space For Sale

86 Front St, Hempstead, NY 11550

$1,295,000

4,796 sqft 0.12 AC lot

Commercial office space on a busy street, investment opportunity.

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Flex Space Building with Corner Exposure

150 Jerusalem Avenue, Massapequa, NY 11758

$1,299,999

0.22 AC lot

Two-story freestanding office and warehouse with a rear overhead door, C6 zoning, and parking for 20+ cars.

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Two 3-Story Contiguous Office Buildings

445 Northern Boulevard, Great Neck, NY 11021

$15,900,000

48,000 sqft 1.75 AC lot

Two contiguous three-story office buildings on a 1.75-acre campus in Great Neck, built in 1966.

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Office and Retail Building with Accessible Elevator

393 Sunrise Highway, Lynbrook, NY 11563

$3,500,000

0.11 AC lot

Mixed-use building with three retail and five office units, central air, and an accessible elevator.

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New Medical Office Building

441 FRANKLIN AVE, Franklin Square, NY 11010

$2,650,000

9,800 sqft

Newly constructed medical and professional office building with elevator access and ample on-site parking in a high-traffic corridor.

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Turn-Key Dental Office with Operatories

210 Atlantic Avenue, Lynbrook, NY 11563

$170,000

1.99 AC lot

Ground-floor dental office in a medical co-op, renovated within the past year and equipped with three operatories and an X-ray system.

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Nassau County, NY Office Spaces Market Trends and Statistics

Explore 197 office spaces for sale in Nassau County, NY, showcased through 197 active listings on our real estate platform. These investment opportunities span a total of 1,373,145 square feet of properties for sale, with an estimated market value of $193,155,098.

Sale prices for office spaces in Nassau County, NY start at $149,000, averaging $2,170,282, and reaching up to $16,000,000 — 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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