Barnum Island, NY Office Units for Rent & Lease

Updated: Sep 3

Professional Office Units

391 Long Beach Road, Island Park, NY 11558

$4,500/Mo

0.16 AC lot

Approximately 1,375 SF of professional office space
Four private offices plus two common/reception areas
11‑foot ceilings with front and side entrances
13 parking spaces on site
Next to the Post Office with a bus stop directly in front

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Updated: Mar 27, 2025

Renovated Office Unit With Street Entry

161 L Long Beach, Island Park, NY 11558

$3,999/Mo

1,900 SF office unit with professional build‑out
Direct street entrance with double‑door entry
Two separate half baths
Dedicated kitchen room and ample storage
Plank flooring being installed

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Office Unit with Private Offices

391 Long Beach Rd Apartment 11, Island Park, NY 11558

$4,500/Mo

1,375 sqft

Flexible professional layout with reception areas, multiple entrances, and on-site parking.

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Renovated Office Space Available

Barnum Island, NY 11558

$3,999/Mo

Turn-key office space with complete build-out and modern amenities.

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Based on your search, we've compiled 8 Potential Opportunities for your consideration. Besides 4 Active listings in Barnum Island, NY, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities

Office Units for Lease in Nearby Cities

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

Three-Room Office Unit

201-100 W Park Ave, Long Beach, NY 11561

$1,800/Mo

475 sqft

Second-floor office space offers elevator access and shared hallway bathrooms.

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Move-in Ready Office Space Available

212 W Park Ave UPPER, Long Beach, NY 11561

$2,750/Mo

0.14 AC lot

Well-maintained office space with street-level signage and ample parking.

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Medical Office with Exam Rooms

3051 Long Beach Rd, Oceanside, NY 11572

Contact for pricing

2,300 sqft

Patient-facing layout includes reception, a waiting area, and a dedicated business center.

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Commercial Space for Lease

70 Atlantic Ave, Oceanside, NY 11572

Contact for pricing

Commercial space available for lease at 70 Atlantic Ave.

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Barnum Island, NY Office Units Lease Rates & Market Statistics

Explore 4 Office Units for lease in Barnum Island, NY on Realmo, a commercial real estate exchange covering the Barnum Island area. The current inventory totals 1,375 square feet of properties.

Office Units lease rates in Barnum Island range from $39.27 SF/Yr at the entry level to $39.27 SF/Yr at the top of the market, averaging $39.27 SF/Yr. Pricing across the market is relatively uniform, which simplifies like-for-like comparison between listings. The local average of $39.27 SF/Yr is 32% above the New York state average of $29.74 SF/Yr.

Barnum Island accounts for 1% of the 286 office units currently available across Nassau County, where nearby markets include Great Neck and Lynbrook. Office Units are one of the more limited space types in Barnum Island, with just 4 listings currently available — a scarcity worth factoring into lease negotiations.