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    Port Jefferson, NY Office Properties & Spaces for Sale

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    Professional Office Building For Sale
    $799,000
    5,000 SF

    Professional Office Building For Sale

    111 N Country Rd, Port Jefferson, NY 11777

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

    • Prime location in Port Jefferson, Long Island, close to hospitals, train, and bus lines.
    • Well‑maintained 5,000 SF professional office building with two modern units.
    • Major suite renovations completed in 2019.
    • Strong leasing history with upside potential.
    • Suitable for owner‑user or investment.
    View details
    Port Jefferson Office Building
    $899,000
    5,000 SF

    Port Jefferson Office Building

    111 Country Rd, Port Jefferson, NY 11777

    Prime Office Investment, 5,000 SF

    View details
    Based on your search, we've compiled 34 Potential Opportunities for your consideration. Besides 2 Active listings in Port Jefferson, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 28 Off-Market properties to explore as potential leads

    Explore Opportunities in Nearby Cities

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

    Mt. Sinai Commercial Development
    Contact for pricing
    87,000 SF

    Mt. Sinai Commercial Development

    87,000 SF Medical & Retail Opportunity

    12 Myrtle St, Mount Sinai, NY 11766
    View details
    Commercial Development Sites For Sale
    Contact for pricing
    87,000 SF

    Commercial Development Sites For Sale

    Two contiguous commercial development sites available for sale.

    12 Myrtle St, Mount Sinai, NY 11766
    View details
    Industrial Building Conversion Potential
    $2,500,000
    6,980 SF

    Industrial Building Conversion Potential

    6,980 SF industrial building with conversion potential in Port Jefferson.

    591 Bicycle Path, Port Jefferson Station, NY 11776
    View details
    Port Jefferson Station Industrial Building
    $2,495,000
    7,176 SF

    Port Jefferson Station Industrial Building

    6,980 SF industrial building with conversion potential.

    507 North Bicycle Path, Port Jefferson Station, NY 11776
    View details

    Explore Off-Market Properties in Port Jefferson, NY

    Consider similar Off-Market properties in Port Jefferson, 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.

    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.15 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    118 Country Rd

    118 Country Rd

    PROFESSIONAL BUILDING • 1.23 Acres
    Value Estimation by Request
    118 Country Rd, Port Jefferson, NY 11777-2120
    View details
    1227 Main St

    1227 Main St

    OFFICE BUILDING • 0.24 Acres
    Value Estimation by Request
    1227 Main St, Port Jefferson, NY 11777-2227
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.23 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    102 Broadway

    102 Broadway

    OFFICE BUILDING • 0.56 Acres
    Value Estimation by Request
    102 Broadway, Port Jefferson, NY 11777-1314
    View details
    55 Clf Rd

    55 Clf Rd

    OFFICE BUILDING • 1.00 Acre
    Value Estimation by Request
    55 Clf Rd, Port Jefferson, NY 11777-1240
    View details
    150 Dark Holw Rd

    150 Dark Holw Rd

    MEDICAL CLINIC • 4.02 Acres
    Value Estimation by Request
    150 Dark Holw Rd, Port Jefferson, NY 11777-2048
    View details
    414 Main St

    414 Main St

    OFFICE BUILDING • 0.68 Acres
    Value Estimation by Request
    414 Main St, Port Jefferson, NY 11777-1686
    View details
    646 Main St

    646 Main St

    OFFICE BUILDING • 0.34 Acres
    Value Estimation by Request
    646 Main St, Port Jefferson, NY 11777-2235
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.14 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.15 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    70 Country Rd

    70 Country Rd

    PROFESSIONAL BUILDING • 3.44 Acres
    Value Estimation by Request
    70 Country Rd, Port Jefferson, NY 11777-2161
    View details
    116 Oakland Ave

    116 Oakland Ave

    OFFICE BUILDING • 0.34 Acres
    Value Estimation by Request
    116 Oakland Ave, Port Jefferson, NY 11777-2172
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.06 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.15 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    12 Walnut St

    12 Walnut St

    OFFICE BUILDING • 0.11 Acres
    Value Estimation
    $710,000
    12 Walnut St, Port Jefferson, NY 11777-2164
    View details
    635 Belle Terre Rd

    635 Belle Terre Rd

    PROFESSIONAL BUILDING • 3.00 Acres
    Value Estimation by Request
    635 Belle Terre Rd, Port Jefferson, NY 11777-1935
    View details
    620 Belle Terre Rd

    620 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.64 Acres
    Value Estimation by Request
    620 Belle Terre Rd, Port Jefferson, NY 11777-2500
    View details
    39 Broadway

    39 Broadway

    OFFICE BUILDING • 0.04 Acres
    Value Estimation by Request
    39 Broadway, Port Jefferson, NY 11777-1201
    View details
    1000 Main St

    1000 Main St

    PROFESSIONAL BUILDING • 0.25 Acres
    Value Estimation by Request
    1000 Main St, Port Jefferson, NY 11777-2250
    View details
    518-526 Main St

    518-526 Main St

    OFFICE BUILDING • 4,400 SF
    Value Estimation
    $3,200,000
    518-526 Main St, Port Jefferson, NY 11777
    View details
    414 Main St

    414 Main St

    OFFICE BUILDING • 0.87 Acres
    Value Estimation by Request
    414 Main St, Port Jefferson, NY 11777-1686
    View details

    Port Jefferson, NY Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 30 office properties & spaces for sale in Port Jefferson, NY on our real estate platform. These investment opportunities span a total of 128,067 square feet of properties for sale, with an estimated market value of $6,449,000.

    Sale prices for office spaces in Port Jefferson, NY start at $250,000, averaging $1,074,833, and reaching up to $3,350,000 — 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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