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    Mastic, NY Office Spaces for Sale

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    Manorville, NY Shirley, NY Moriches, NY
    Versatile Property with Approvals Secured
    $950,000
    5,086 SF
    Versatile Property with Approvals Secured

    21 Old Montauk Highway, Mastic, NY 11950

    Adaptable property suitable for various uses with existing approvals.
    • Zoned J‑6 Business: Suitable for diverse uses.
    • Valuable approvals secured for medical use from Suffolk County Department of Health and Town of Brookhaven Planning Department.
    • Flexible Second Floor: Adaptable as office space or convertible into apartments.
    • Prime Location: Excellent visibility and accessibility.
    • Move‑In or Develop: Ready for immediate use or customization.
    Updated: Nov 21, 2025
    View details
    Based on your search, we've compiled 16 Potential Opportunities for your consideration. Besides 1 Active listings in Mastic, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 7 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 For Sale
    $1,800,000
    6,488 SF
    Commercial Building For Sale

    6,488 Sq Ft commercial building suitable for various uses.

    910 Montauk Highway, Shirley, NY 11967

    View details
    Renovated Office Space in Eastport
    Contact for pricing
    Renovated Office Space in Eastport

    2,000 sq ft renovated office space in Eastport, NY.

    500 Montauk Highway, Eastport, NY 11941

    View details
    Renovated Office Space in Eastport
    Contact for pricing
    2,000 SF
    Renovated Office Space in Eastport

    2,000 sq. ft. renovated office space in Eastport.

    500 Montauk Hwy, Eastport, NY 11941

    View details
    Medical Office Building For Sale
    $1,190,000
    6,000 SF
    Medical Office Building For Sale

    Medical office building in Shirley, delivered vacant, ample parking.

    20 Grand Ave, Shirley, NY 11967

    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.

    Commercial Land on Montauk Highway
    $950,000
    0.55 Acres
    Commercial Land on Montauk Highway

    0.55-acre commercial lot with high visibility on Montauk Highway.

    1467 Montauk Highway, Mastic, NY 11950

    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
    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 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

    Off-Market Properties in Mastic, NY

    Consider similar Off-Market properties in Mastic, 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.

    1425 Montauk Hwy

    1425 Montauk Hwy

    PROFESSIONAL BUILDING • 0.42 Acres
    Value Estimation by Request
    1425 Montauk Hwy, Mastic, NY 11950-2916
    View details
    1235 Montauk Hwy

    1235 Montauk Hwy

    OFFICE BUILDING • 0.44 Acres
    Value Estimation by Request
    1235 Montauk Hwy, Mastic, NY 11950-2917
    View details
    1154 Montauk Hwy

    1154 Montauk Hwy

    OFFICE BUILDING • 0.23 Acres
    Value Estimation by Request
    1154 Montauk Hwy, Mastic, NY 11950-2932
    View details
    1 Lambert Ave

    1 Lambert Ave

    PROFESSIONAL BUILDING • 0.32 Acres
    Value Estimation by Request
    1 Lambert Ave, Mastic, NY 11950-2100
    View details
    1360 Montauk Hwy

    1360 Montauk Hwy

    OFFICE BUILDING • 0.30 Acres
    Value Estimation by Request
    1360 Montauk Hwy, Mastic, NY 11950-2929
    View details
    Montauk Hwy

    Montauk Hwy

    OFFICE BUILDING • 0.93 Acres
    Value Estimation by Request
    Montauk Hwy, Mastic, NY 11950
    View details
    Row Rd

    Row Rd

    OFFICE BUILDING • 249.95 Acres
    Value Estimation
    $530,000
    Row Rd, Mastic, NY 11950
    View details

    Mastic, NY Office Spaces Investment Opportunities Market Analysis

    Explore 8 office spaces for sale in Mastic, NY on our real estate platform. These investment opportunities span a total of 5,086 square feet of properties for sale, with an estimated market value of $950,000.

    Sale prices for office spaces in Mastic, NY start at $950,000, averaging $950,000, and reaching up to $950,000 — 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

    Office Units 5
    Office buildings 1

    Demographics Overview

    Population 17K
    Population Growth (5Y) +6.7%
    Median Household Income $105,593
    College Educated 21.9%

    High-Yield Neighborhoods for Strategic Investment

    Identify Mastic submarkets with the highest inventory density on the market and evaluate the median listing prices of real estate assets

    Neighborhood Average Price
    11950 $950K

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