Mount Sinai, NY Office Units for Rent & Lease

Updated: Mar 26

Mount Sinai Office Space Available

Portview Building - 28 N. Country Road, Mount Sinai, NY 11766

$14.50 SF/Yr

Prime location near Port Jefferson Village, Long Island Railroad, and two local hospitals.
Modified gross leases are available.
Gas and water included in lease.
Suitable for office and executive suite tenants.
Electric cost is $3.50 psf.

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Updated: Aug 5

Second-Floor Office Units

Mount Sinai, NY 11766

Contact for pricing

Second‑floor office and professional suites
Newly renovated shopping center anchored by Whole Foods
Flexible layouts for professional, service, wellness, and specialty uses
Corner location at Nesconset Highway (Rte 347) and Crystal Brook Hollow Road
Abundant on‑site parking

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Based on your search, we've compiled 6 Potential Opportunities for your consideration. Besides 2 Active listings in Mount Sinai, 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.

Second-Floor Office Suite

903 Main Street, Port Jefferson, NY 11777

$825/Mo

0.75 AC lot

Private workspace with hardwood flooring, dedicated air conditioning, storage, and included parking.

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Office Unit Near Hospitals

640 Belle Terre Road unit E-3, Port Jefferson, NY 11777

$900/Mo

Office space offers access to nearby hospitals and rail service, with major roadway connections.

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East Setauket Storage Space

6 Technology Dr, East Setauket, NY

Contact for pricing

11,974 sqft 3.05 AC lot

Storage space available in East Setauket, part of Technology Center.

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East Setauket Medical/Office Space

4 Technology Dr, East Setauket, NY

Contact for pricing

7,819 sqft 3.26 AC lot

Medical/office space for rent in East Setauket, NY.

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Mount Sinai, NY Office Units Lease Rates & Market Statistics

Browse 2 Office Units for lease in Mount Sinai, NY on Realmo, a commercial real estate marketplace serving the Mount Sinai area.

Asking lease rates for Office Units in Mount Sinai start at $14.50 SF/Yr, average $14.50 SF/Yr, and reach $14.50 SF/Yr at the top of the market. Pricing across the market is relatively uniform, which simplifies like-for-like comparison between listings. The local average of $14.50 SF/Yr is 50% below the New York state average of $29.21 SF/Yr.

Mount Sinai accounts for 1% of the 291 office units currently available across Suffolk County, where nearby markets include Huntington and Hauppauge. Office Units are one of the more limited space types in Mount Sinai, with just 2 listings currently available — a scarcity worth factoring into lease negotiations.