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    Syosset, NY Office Buildings for Lease

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    Woodbury, NY Jericho, NY Plainview, NY Huntington, NY Cold Spring Harbor, NY Huntington Station, NY Bethpage, NY Locust Valley, NY
    Full-Service Office Suite
    Updated: Apr 15
    Full-Service Office Suite

    6900 Jericho Tpke, Syosset, NY 11791

    Contact for pricing
    7,604 sqft
    On‑site management for the office space
    24/7 building access
    Abundant on‑site parking
    Full service café available on‑site
    Fitness center and conference center available as shared amenities
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    Syosset Multi-Tenant Office Building
    Updated: Sep 19, 2025
    Syosset Multi-Tenant Office Building

    575 Underhill Blvd, Syosset, NY 11791

    Contact for pricing
    10,000 sqft 16.60 AC lot
    Prime location at the corner of Jericho Turnpike and Underhill Boulevard, offering high visibility and accessibility.
    Ample parking and 24/7 tenant access.
    Sizeable 235,000‑square‑foot, two‑story building with an industrial component on 16.6 acres.
    Strategic positioning in a thriving Syosset business community.
    Easy access to major transportation routes, including Route 135, Routes 106 and 107, and the Long Island Railroad (Syosset Station).
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    Two-Story Multi-Tenant Office Building
    Two-Story Multi-Tenant Office Building

    6801 Jericho Tpke, Syosset, NY 11791

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    9,000 sqft 25.00 AC lot

    Two-story, multi-tenant office building on a 25-acre site off Jericho Turnpike with convenient access to major routes.

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    Two-Story Multi-Tenant Office Building
    Two-Story Multi-Tenant Office Building

    6801 Jericho Tpke, Syosset, NY 11791

    Contact for pricing
    40,000 sqft 25.00 AC lot

    Two-story, multi-tenant office building offering on-site office space in Syosset.

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    Based on your search, we've compiled 9 Potential Opportunities for your consideration. Besides 4 Active listings in Syosset, NY, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 1 Properties for Sales.

    Office buildings for Lease in Nearby Cities

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

    Renovated Office Plaza Building
    Renovated Office Plaza Building

    Jericho Plaza 1 & 2, Jericho, NY 11753

    Contact for pricing
    102,655 sqft

    Two-building, three-story office setting with renovated common areas, conference amenities, and 24-hour security for day-to-day operations.

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    Office Building with Large Floor Plates
    Office Building with Large Floor Plates

    1305 Walt Whitman Rd, Melville, NY 11747

    Contact for pricing
    6,353 sqft

    Office building offering large floor plates plus a full-service cafeteria, conference center, and fitness facilities.

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    Office Building with Large Floor Plates
    Office Building with Large Floor Plates

    1305 Walt Whitman Rd, Melville, NY 11747

    Contact for pricing
    10,198 sqft

    Office building near a Long Island Expressway entrance/exit with large floor plates and extensive parking.

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    Jericho Office Building For Rent
    Jericho Office Building For Rent

    1 Jericho Plz, Jericho, NY

    Contact for pricing
    298,000 sqft 49.57 AC lot

    Office building with banking, concierge, fitness center, and food court.

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    Similar Spaces for Sale in Syosset, NY

    Consider Similar Space for Sale. We found 1 Spaces matching your search parameters.

    Mixed-Use Building with Retail
    Mixed-Use Building with Retail

    144 N Jackson Avenue, Syosset, NY 11791

    Contact for pricing

    Two-level property combines an occupied retail floor with available office space above.

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    Syosset, NY Office buildings Lease Rates & Market Statistics

    Browse 4 Office buildings for lease in Syosset, NY on Realmo, a commercial real estate marketplace serving the Syosset area. The current inventory totals 66,604 square feet of properties.

    Syosset accounts for 4% of the 91 office buildings currently available across Nassau County, where nearby markets include Garden City and Great Neck. Office buildings are one of the more limited space types in Syosset, with just 4 listings currently available — a scarcity worth factoring into lease negotiations. Also worth a look for tenants weighing alternatives: Office Units (8 listings) elsewhere in the Syosset market.

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