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    Port Jefferson, NY Office Properties & Spaces for Sale

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    Brooklyn, NY Queens, NY New York, NY
    7 results
    Port Jefferson Station Dental Office
    $750,000
    0.33 Acres

    Port Jefferson Station Dental Office

    488 Terryville Road, Port Jefferson Station, NY 11776

    Move-in-ready dental office with expansion potential in prime location.

    • Freestanding, move‑in‑ready dental office with existing business included.
    • High‑visibility location on a busy intersection with strong traffic.
    • Three fully equipped operatories with expansion potential to five.
    • Ample paved parking lot with multiple dedicated spaces.
    • Excellent curb appeal and signage, including a large monument sign.
    Updated: Dec 12, 2025
    View details
    Professional Office Building For Sale
    $799,000
    5,000 SF

    Professional Office Building For Sale

    111 N Country Road, 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.
    Updated: Nov 21, 2025
    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
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    Net-Leased Medical Office Asset
    $2,281,840
    5,000 SF

    Net-Leased Medical Office Asset

    Single-tenant medical office with predictable cash flow and rent growth.

    492 Old Town Rd, Port Jefferson Station, NY 11776
    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
    View details
    Updated Mixed-Use Property For Sale
    $799,000
    13,504 SF

    Updated Mixed-Use Property For Sale

    Versatile, updated mixed-use property with flexible layout and strong visibility.

    4515 Nesconset Highway, Port Jefferson Station, NY 11776
    View details
    Office
    $799,000
    5,000 SF

    Office

    Office buildings · 5,000 SF

    111 N Country Rd, Port Jefferson, NY 11777
    View details
    Based on your search, we've compiled 43 Potential Opportunities for your consideration. Besides 7 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, plus 4 Land Listings that present a potential for development.

    Explore Opportunities in Nearby Cities

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

    Medical Office in East Setauket
    $1,100,000
    2.84 Acres

    Medical Office in East Setauket

    Prime medical real estate for sale in East Setauket.

    8 Technology Drive, East Setauket, NY 11733
    View details
    Office Building on Corner Lot
    Contact for pricing
    10,000 SF

    Office Building on Corner Lot

    10,000 Sq. Ft. office building on 2.19 acres.

    761-765 Middle Country Rd, Selden, NY
    View details
    East Setauket Corner Office Unit
    Contact for pricing
    6,800 SF

    East Setauket Corner Office Unit

    Corner office unit in Stonybrook Technology/Medical Park.

    2-21 Technology Dr, East Setauket, NY
    View details
    Medical Office Building For Sale
    $3,150,000
    7,000 SF

    Medical Office Building For Sale

    Medical office building with tenant in place, near LIE.

    243 Boyle Rd, Selden, NY
    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.

    Prime Land in Port Jefferson
    $3,250,000
    4.10 Acres

    Prime Land in Port Jefferson

    4.1 acre commercial land in revitalizing Port Jefferson Station.

    527/529 Route 112, Port Jefferson Station, NY 11776
    View details
    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
    Prime Commercial Parcel in Smithtown
    $1,100,000
    1.22 Acres

    Prime Commercial Parcel in Smithtown

    High-visibility commercial land for sale in a thriving business district.

    Middle Country Road, Smithtown, NY 11780
    View details
    Prime Commercial Land Opportunity
    $1,100,000
    1.22 Acres

    Prime Commercial Land Opportunity

    High-visibility commercial land parcel in Smithtown, ideal for development.

    Middle Country Road, Smithtown, NY 11780
    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.

    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
    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
    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
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.28 Acres
    Value Estimation
    $725,000
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    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
    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
    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
    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
    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
    39 Broadway

    39 Broadway

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

    39 Broadway

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

    39 Broadway

    OFFICE BUILDING • 0.04 Acres
    Value Estimation by Request
    39 Broadway, Port Jefferson, NY 11777-1201
    View details
    640 Belle Terre Rd

    640 Belle Terre Rd

    PROFESSIONAL BUILDING • 0.22 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
    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
    640 Belle Terre Rd

    640 Belle Terre Rd

    OFFICE BUILDING • 0.08 Acres
    Value Estimation by Request
    640 Belle Terre Rd, Port Jefferson, NY 11777-1936
    View details
    251 Oakland Ave

    251 Oakland Ave

    PROFESSIONAL BUILDING • 0.98 Acres
    Value Estimation by Request
    251 Oakland Ave, Port Jefferson, NY 11777-2602
    View details

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

    Explore 35 office properties & spaces for sale in Port Jefferson, NY, showcased through 7 active listings on our real estate platform. These investment opportunities span a total of 106,723 square feet of properties for sale, with an estimated market value of $5,550,000.

    Sale prices for office spaces in Port Jefferson, NY start at $250,000, averaging $1,110,000, 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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    Browse Office properties & Spaces for Sale Near Port Jefferson, NY

    Popular Searches in Port Jefferson, NY

    Most Searched ZIP Codes in Port Jefferson, NY

    • 11776
    • 11777

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