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    South Setauket, NY Office Buildings for Sale

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    East Setauket, NY Stonybrook, NY Lake Grove, NY
    Centereach Office Space For Sale
    $699,000
    0.30 Acres

    Centereach Office Space For Sale

    2539 Middle Country Road, Centereach, NY 11720

    Office spaces in high-traffic Centereach location on Middle Country Road.

    • High‑traffic location on Middle Country Road (Route 25)
    • Multiple office spaces suitable for end‑users or investors
    • Central air conditioning
    • Baseboard heating
    • Basement included
    Updated: Oct 30, 2025
    View details
    Based on your search, we've compiled 30 Potential Opportunities for your consideration. Besides 1 Active listings in South Setauket, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 21 Off-Market properties to explore as potential leads, plus 4 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.

    Commercial Building in Ronkonkoma, NY
    $650,000
    2,300 SF

    Commercial Building in Ronkonkoma, NY

    Updated Hi-Ranch with modern amenities and convenient location.

    294 Fir Grove Rd, Ronkonkoma, NY 11779
    View details
    Ronkonkoma Avenue Freestanding Office Building
    $749,000
    1,400 SF

    Ronkonkoma Avenue Freestanding Office Building

    Freestanding, renovated office building with two suites and ample parking.

    218 Ronkonkoma Ave, Ronkonkoma, NY 11779
    View details
    Professional Office Building For Sale
    $799,000
    5,000 SF

    Professional Office Building For Sale

    Well-maintained 5,000 SF office building in Port Jefferson, NY.

    111 N Country Road, Port Jefferson, NY 11777
    View details
    Office
    $799,000
    5,000 SF

    Office

    Office buildings · 5,000 SF

    111 N Country Rd, Port Jefferson, NY 11777
    View details

    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.

    Rocky Point Commercial Lot
    $390,000
    0.41 Acres

    Rocky Point Commercial Lot

    J-2 zoned commercial lot in Rocky Point, NY.

    N Country Roads, Rocky Point, NY
    View details
    Commercial Land Near Montauk Highway
    $699,000
    0.50 Acres

    Commercial Land Near Montauk Highway

    Vacant commercial lot near Montauk Hwy, Shirley, NY.

    V/L Versa Place, Shirley, NY 11967
    View details
    Commercial Land Near Montauk Highway
    $699,000
    0.50 Acres

    Commercial Land Near Montauk Highway

    Prime commercial lot near shopping, zoned J6, approved for building.

    V/L Versa Place, Shirley, NY 11967
    View details
    Commercial Land in Mastic, NY
    $749,500
    0.31 Acres

    Commercial Land in Mastic, NY

    Commercial land near shopping center and residential neighborhoods.

    1287 Montauk Highway, Mastic, NY 11950
    View details

    Off-Market Properties in South Setauket, NY

    Consider similar Off-Market properties in South Setauket, NY. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    1523 Middle Country Rd

    1523 Middle Country Rd

    PROFESSIONAL BUILDING • 0.09 Acres
    Value Estimation
    $550,000
    1523 Middle Country Rd, Centereach, NY 11720-3513
    View details
    2450 Middle Country Rd

    2450 Middle Country Rd

    PROFESSIONAL BUILDING • 0.45 Acres
    Value Estimation
    $900,000
    2450 Middle Country Rd, Centereach, NY 11720-3548
    View details
    2112 Middle Country Rd

    2112 Middle Country Rd

    PROFESSIONAL BUILDING
    Value Estimation
    $9,000,000
    2112 Middle Country Rd, Centereach, NY 11720-3519
    View details
    18 Eastwood Blvd

    18 Eastwood Blvd

    PROFESSIONAL BUILDING • 0.12 Acres
    Value Estimation by Request
    18 Eastwood Blvd, Centereach, NY 11720-2735
    View details
    99 Mark Tree Rd

    99 Mark Tree Rd

    OFFICE BUILDING • 0.59 Acres
    Value Estimation by Request
    99 Mark Tree Rd, Centereach, NY 11720-2276
    View details
    26 Eastwood Blvd

    26 Eastwood Blvd

    PROFESSIONAL BUILDING • 0.22 Acres
    Value Estimation by Request
    26 Eastwood Blvd, Centereach, NY 11720-2735
    View details
    2297 Middle Country Rd

    2297 Middle Country Rd

    OFFICE BUILDING • 0.25 Acres
    Value Estimation by Request
    2297 Middle Country Rd, Centereach, NY 11720-3666
    View details
    7 Mark Tree Rd

    7 Mark Tree Rd

    PROFESSIONAL BUILDING • 0.28 Acres
    Value Estimation by Request
    7 Mark Tree Rd, Centereach, NY 11720-2221
    View details
    1919 Middle Country Rd

    1919 Middle Country Rd

    OFFICE BUILDING • 0.63 Acres
    Value Estimation by Request
    1919 Middle Country Rd, Centereach, NY 11720-5600
    View details
    1797 Middle Country Rd

    1797 Middle Country Rd

    PROFESSIONAL BUILDING • 0.54 Acres
    Value Estimation by Request
    1797 Middle Country Rd, Centereach, NY 11720-5701
    View details
    7 Rosemary Ln

    7 Rosemary Ln

    PROFESSIONAL BUILDING • 0.20 Acres
    Value Estimation by Request
    7 Rosemary Ln, Centereach, NY 11720-4440
    View details
    1820 Middle Country Rd

    1820 Middle Country Rd

    PROFESSIONAL BUILDING • 1.30 Acres
    Value Estimation by Request
    1820 Middle Country Rd, Centereach, NY 11720-3675
    View details
    1787 Middle Country Rd

    1787 Middle Country Rd

    PROFESSIONAL BUILDING • 1.46 Acres
    Value Estimation by Request
    1787 Middle Country Rd, Centereach, NY 11720-3507
    View details
    9 Smith St

    9 Smith St

    OFFICE BUILDING • 0.21 Acres
    Value Estimation by Request
    9 Smith St, Centereach, NY 11720-3855
    View details
    2535 Middle Country Rd

    2535 Middle Country Rd

    PROFESSIONAL BUILDING • 0.25 Acres
    Value Estimation by Request
    2535 Middle Country Rd, Centereach, NY 11720-5400
    View details
    1 Mark Tree Rd

    1 Mark Tree Rd

    PROFESSIONAL BUILDING • 0.25 Acres
    Value Estimation by Request
    1 Mark Tree Rd, Centereach, NY 11720-2279
    View details
    141 Mark Tree Rd

    141 Mark Tree Rd

    PROFESSIONAL BUILDING • 0.33 Acres
    Value Estimation by Request
    141 Mark Tree Rd, Centereach, NY 11720-2221
    View details
    Middle Country Rd

    Middle Country Rd

    OFFICE BUILDING • 0.25 Acres
    Value Estimation by Request
    Middle Country Rd, Centereach, NY 11720
    View details
    2539 Middle Country Rd

    2539 Middle Country Rd

    PROFESSIONAL BUILDING • 0.30 Acres
    Value Estimation by Request
    2539 Middle Country Rd, Centereach, NY 11720-3551
    View details
    2566 Middle Country Rd

    2566 Middle Country Rd

    PROFESSIONAL BUILDING • 0.50 Acres
    Value Estimation by Request
    2566 Middle Country Rd, Centereach, NY 11720-3525
    View details
    23 Howell Ave

    23 Howell Ave

    PROFESSIONAL BUILDING • 3.66 Acres
    Value Estimation by Request
    23 Howell Ave, Centereach, NY 11720-4445
    View details

    South Setauket, NY Office Buildings Investment Opportunities Market Analysis

    Explore 22 office buildings for sale in South Setauket, NY on our real estate platform. These investment opportunities span a total of 0 square feet of properties for sale, with an estimated market value of $699,000.

    Sale prices for office properties in South Setauket, NY start at $699,000, averaging $699,000, and reaching up to $699,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

    List
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    New Listings Trend, 12 Mo

    Number of new listings by month over the past year in South Setauket.

    Leading Commercial Asset Segments

    Office Units 4
    Medical Office Space 1
    Office buildings 1
    Serviced offices 1

    South Setauket Demographics Overview

    Population 29K
    Population Growth (5Y) +0.4%
    Median Household Income $128,015
    College Educated 53.2%

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