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    Selden, NY
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    Selden, NY Office Spaces for Sale

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    Coram, NY Farmingville, NY Centereach, NY Port Jefferson Station, NY Medford, NY Ronkonkoma, NY East Setauket, NY Middle Island, NY
    Office Unit with Unfinished Basement
    Updated: Oct 20
    Office Unit with Unfinished Basement

    1134 Middle Country Rd, Selden, NY 11784

    $650,000
    Three bathrooms
    Unfinished basement with storage capacity
    Workspace arranged on the main level
    View details
    Corner Commercial Land
    Updated: Nov 6
    Corner Commercial Land

    230 Middle Country Rd, Selden, NY 11784

    $549,850
    Approximately 0.68 acres at Middle Country Road and New Lane
    900 square feet of office space in five rooms
    Front portion zoned J‑2 Business
    View details
    Realmo Analytics Monitor Off-market properties and contact owners who are ready to sell. Many signals applied to make quality leads for you. Get Leads
    2 active listings match your search: Office for sale in Selden, NY. Based on your search, we've also compiled 21 Potential Opportunities for your consideration: 4 properties in nearby cities, 13 off-market properties to explore as potential leads, and 4 land listings with development potential.

    Opportunities in Nearby Cities

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

    Two-Unit Freestanding Office Building
    Two-Unit Freestanding Office Building

    362 Mooney Pond Road, Farmingville, NY 11738

    $629,999
    2,500 sqft

    A stone-clad commercial property offers separate work areas, accessible entry, central air conditioning, and off-street parking.

    View details
    Freestanding Office Building
    Freestanding Office Building

    362 Mooney Pond Road, Farmingville, NY 11738

    $629,999
    0.14 AC lot

    Two-unit office property with separate electric meters, central air, parking, and flexible interior configuration.

    View details
    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
    Medical Office Park
    Medical Office Park

    23 S. Howell Avenue, Centereach, NY 11720

    Contact for pricing

    Built in 2013, the property is fully occupied, with tenants that include a major healthcare system.

    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.

    J-2 Zoned Commercial Land
    J-2 Zoned Commercial Land

    N Country Roads, Rocky Point, NY

    $390,000
    0.41 AC lot

    Commercial land in Rocky Point with J-2 zoning and potential for office, retail, workshop, and automotive-oriented uses.

    View details
    Commercial Land with Build-to-Suit Plan
    Commercial Land with Build-to-Suit Plan

    34-41 Montauk Highway, East Moriches, NY 11940

    $1,289,000
    1.45 AC lot

    Comm-zoned parcel with septic tank service and a proposed two-building commercial development concept.

    View details
    Commercial Land Across From Apartments
    Commercial Land Across From Apartments

    770 N Broadway, Amityville, NY 11701

    $1,999,990
    0.95 AC lot

    E Business zoning with public water and public sewer serves the commercial parcel.

    View details
    HB-Zoned Commercial Land
    HB-Zoned Commercial Land

    385 New Suffolk Avenue, Mattituck, NY 11952

    $2,075,000
    2.38 AC lot

    Mattituck business-district parcel with commercial, residential, and mixed-use development possibilities.

    View details

    Off-Market Properties in Selden, NY

    Consider similar Off-Market properties in Selden, 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.

    1344 Paula Blvd
    OFFICE BUILDING

    1344 Paula Blvd, Selden, NY 11784

    Estimated value:
    $775,000
    0.46 AC lot
    View details
    735 Middle Country Rd
    OFFICE BUILDING

    735 Middle Country Rd, Selden, NY 11784-2502

    Estimated value:
    $290,000
    0.18 AC lot
    View details
    1075 Middle Country Rd
    PROFESSIONAL BUILDING

    1075 Middle Country Rd, Selden, NY 11784

    Estimated value:
    $290,000
    0.43 AC lot
    View details
    243 Boyle Rd
    PROFESSIONAL BUILDING

    243 Boyle Rd, Selden, NY 11784-1929

    Estimated value:
    $270,000
    0.90 AC lot
    View details
    761 Middle Country Rd
    OFFICE BUILDING

    761 Middle Country Rd, Selden, NY 11784-2550

    Estimated value:
    $275,000
    1.12 AC lot
    View details
    3 Boyle Rd
    PROFESSIONAL BUILDING

    3 Boyle Rd, Selden, NY 11784-4000

    Estimated value:
    $280,000
    0.40 AC lot
    View details
    235 Boyle Rd
    PROFESSIONAL BUILDING

    235 Boyle Rd, Selden, NY 11784-1900

    Estimated value:
    $280,000
    0.40 AC lot
    View details
    910 Middle Country Rd
    OFFICE BUILDING

    910 Middle Country Rd, Selden, NY 11784-2541

    Estimated value:
    $285,000
    0.29 AC lot
    View details
    1.27 Acres Shovel Ready Development Site
    Medical Office Space

    0 1.27 Acres Shovel Ready Development Site, Selden, NY 11784

    Estimated value: by Request
    7,600 sqft 1.27 AC lot
    View details
    41 Pne St
    MEDICAL CLINIC

    41 Pne St, Selden, NY 11784-2018

    Estimated value:
    $215,000
    0.92 AC lot
    View details
    248 Middle Country Rd
    PROFESSIONAL BUILDING

    248 Middle Country Rd, Selden, NY 11784-2581

    Estimated value:
    $285,000
    1.51 AC lot
    View details
    239 Boyle Rd
    PROFESSIONAL BUILDING

    239 Boyle Rd, Selden, NY 11784-1955

    Estimated value:
    $285,000
    0.73 AC lot
    View details
    Midvale Ave
    RADIO OR TV STATION

    Midvale Ave, Selden, NY 11784

    Estimated value:
    $210,000
    1.36 AC lot
    View details

    Selden, NY Office Spaces Market Trends and Statistics

    Explore 15 office spaces for sale in Selden, NY on our real estate platform.

    Sale prices for office properties in Selden, NY start at $549,850, averaging $599,925, and reaching up to $650,000 — 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 5
    Medical Office Space 2

    Demographics Overview

    Population 26K
    Population Growth (5Y) +4.0%
    Median Household Income $105,268
    College Educated 41.0%

    Listings Trend

    New vs delisted commercial listings in Suffolk County

    New Delisted

    Total CRE Inventory on Market (SF)

    How Realmo verifies these figures

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