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    Port Jefferson, NY Office Spaces for Sale

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    Coram, NY Mount Sinai, NY Selden, NY
    8 properties
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    Port Jefferson Station Dental Office
    Updated: Dec 12, 2025
    Port Jefferson Station Dental Office

    488 Terryville Road, Port Jefferson Station, NY 11776

    $750,000
    0.33 AC lot
    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.
    View details
    Medical Office Building with On-Site MRI
    Updated: Jun 2
    Medical Office Building with On-Site MRI

    5 MEDICAL DR, Port Jefferson Station, NY 11776

    $2,150,000
    4,000 sqft
    Year built 1978 medical property leased to True North Neurology
    Tenant operates an on‑site MRI machine
    True North Neurology provides neurology, headache medicine, and sleep medicine services
    Lease described as an NNN lease (per public remarks)
    Located within a North Shore medical corridor with three major hospitals within minutes: Stony Brook Medicine, St. Charles Hospital, and Northwell Mather Hospital
    View details
    Port Jefferson Station Industrial Building
    Port Jefferson Station Industrial Building

    507 North Bicycle Path, Port Jefferson Station, NY 11776

    $2,495,000
    7,176 sqft

    6,980 SF industrial building with conversion potential.

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    Turn Any Listing Into an Investment Snapshot Owner equity, real caprate, demand score for every listing. Go To Analytics Center
    Industrial Building Conversion Potential
    Industrial Building Conversion Potential

    591 Bicycle Path, Port Jefferson Station, NY

    $2,500,000
    6,980 sqft · 2.51 AC lot

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

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    Updated Mixed-Use Property For Sale
    Updated Mixed-Use Property For Sale

    4515 Nesconset Highway, Port Jefferson Station, NY 11776

    $799,000
    13,504 sqft · 0.31 AC lot

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

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    Net-Leased Medical Office Asset
    Net-Leased Medical Office Asset

    492 Old Town Rd, Port Jefferson Station, NY 11776

    $2,281,840
    5,000 sqft

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

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    Built Medical Office Endcap
    Built Medical Office Endcap

    102 Main Street, Port Jefferson Station, NY 11776

    Contact for pricing

    Turnkey medical buildout with multiple exam rooms, lead-lined x-ray room, and large windows for patient-focused use.

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    Office
    Office

    111 N Country Rd, Port Jefferson, NY 11777

    $799,000
    5,000 sqft

    Office buildings · 5,000 SF

    View details
    Based on your search, we've compiled 44 Potential Opportunities for your consideration. Besides 8 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.

    Opportunities in Nearby Cities

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

    Turn-Key Ground Floor Medical Office
    Turn-Key Ground Floor Medical Office

    8 Technology Drive, East Setauket, NY 11733

    $999,995
    2,500 sqft · 2.84 AC lot

    Turn-key ground floor suite previously used by a medical practitioner, offering easier patient or customer access.

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    Established Dental Office For Sale
    Established Dental Office For Sale

    1 Mark Tree Road, Centereach, NY 11720

    Contact for pricing
    3,549 sqft

    Long-term dental tenant in medical corridor.

    View details
    Centereach Retail and Office Space
    Centereach Retail and Office Space

    2101 Middle Country Rd, Centereach, NY 11720

    Contact for pricing
    5,600 sqft

    5,600 SqFt retail and office space available for sale.

    View details
    East Setauket Corner Office Unit
    East Setauket Corner Office Unit

    2-21 Technology Dr, East Setauket, NY

    Contact for pricing
    6,800 sqft · 3.08 AC lot

    Corner office unit in Stonybrook Technology/Medical Park.

    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
    Rocky Point Commercial Lot

    N Country Roads, Rocky Point, NY

    $390,000
    0.41 AC lot

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

    View details
    Approved Commercial Development Lot
    Approved Commercial Development Lot

    V/L Versa Place, Shirley, NY 11967

    $650,000
    0.50 AC lot

    Vacant, zoned commercial lot with approvals to build a two-story retail/office building with elevator.

    View details
    Zoned Commercial Development Lot
    Zoned Commercial Development Lot

    V/L Versa Place, Shirley, NY 11967

    $650,000
    0.50 AC lot

    Vacant J6-zoned site with approved plans to build a two-story retail/office building with elevator.

    View details
    Commercial Land in Mastic, NY
    Commercial Land in Mastic, NY

    1287 Montauk Highway, Mastic, NY 11950

    $749,500
    0.31 AC lot

    Commercial land near shopping center and residential neighborhoods.

    View details

    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
    OFFICE BUILDING

    518-526 Main St, Port Jefferson, NY 11777

    $3,200,000
    Estimated value
    4,400 sqft · 1.85 AC lot
    View details
    12 Walnut St
    OFFICE BUILDING

    12 Walnut St, Port Jefferson, NY 11777-2164

    $710,000
    Estimated value
    0.11 AC lot
    View details
    640 Belle Terre Rd
    PROFESSIONAL BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    Value Estimation by Request
    0.15 AC lot
    View details
    640 Belle Terre Rd
    PROFESSIONAL BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    $725,000
    Estimated value
    0.28 AC lot
    View details
    620 Belle Terre Rd
    PROFESSIONAL BUILDING

    620 Belle Terre Rd, Port Jefferson, NY 11777-2500

    Value Estimation by Request
    0.64 AC lot
    View details
    640 Belle Terre Rd
    PROFESSIONAL BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    Value Estimation by Request
    0.06 AC lot
    View details
    150 Dark Holw Rd
    MEDICAL CLINIC

    150 Dark Holw Rd, Port Jefferson, NY 11777-2048

    Value Estimation by Request
    4.02 AC lot
    View details
    1000 Main St
    PROFESSIONAL BUILDING

    1000 Main St, Port Jefferson, NY 11777-2250

    Value Estimation by Request
    0.25 AC lot
    View details
    1227 Main St
    OFFICE BUILDING

    1227 Main St, Port Jefferson, NY 11777-2227

    Value Estimation by Request
    0.24 AC lot
    View details
    39 Broadway
    OFFICE BUILDING

    39 Broadway, Port Jefferson, NY 11777-1201

    Value Estimation by Request
    0.04 AC lot
    View details
    39 Broadway
    OFFICE BUILDING

    39 Broadway, Port Jefferson, NY 11777-1201

    Value Estimation by Request
    0.04 AC lot
    View details
    39 Broadway
    OFFICE BUILDING

    39 Broadway, Port Jefferson, NY 11777-1201

    Value Estimation by Request
    0.04 AC lot
    View details
    640 Belle Terre Rd
    PROFESSIONAL BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    Value Estimation by Request
    0.22 AC lot
    View details
    640 Belle Terre Rd
    PROFESSIONAL BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    Value Estimation by Request
    0.15 AC lot
    View details
    635 Belle Terre Rd
    PROFESSIONAL BUILDING

    635 Belle Terre Rd, Port Jefferson, NY 11777-1935

    Value Estimation by Request
    3.00 AC lot
    View details
    640 Belle Terre Rd
    OFFICE BUILDING

    640 Belle Terre Rd, Port Jefferson, NY 11777-1936

    Value Estimation by Request
    0.08 AC lot
    View details

    Port Jefferson, NY Office Spaces Market Trends and Statistics

    Explore 36 office spaces for sale in Port Jefferson, NY, showcased through 8 active listings on our real estate platform. These investment opportunities span a total of 41,660 square feet of properties for sale, with an estimated market value of $11,024,840.

    Sale prices for office spaces in Port Jefferson, NY start at $799,000, averaging $1,837,473, and reaching up to $2,500,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 8
    Medical Office Space 1
    Office buildings 1

    Demographics Overview

    Population 9,347
    Population Growth (5Y) +4.4%
    Median Household Income $148,519

    Listings Trend

    New vs delisted commercial listings in Suffolk County

    New Delisted

    Total CRE Inventory on Market (SF)

    Property Size Breakdown

    The majority of commercial real estate listings in Port Jefferson fall within the 2,500 to 5,000 square foot range.

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    • 11777

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