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    Property profile & analytics

    1556 Islip Ave Brentwood, NY 11717-6023

    • Office buildings
    • 0.38 lot acres
    OFF-MARKET
    Value Estimation
    Location Intelligence
    Property ID
    US63-2125653
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Domozych & Simonetti / Dentist
    • Simonetti Joseph Nyt DDS PC / Dentist
    • Gill And Gill Mds / Internist
    • Gill Iqbal S MD / Internist
    • Dr. Amber Hassan / Family Practice Physician / Practitioner Service Location

    Property Details for 1556 Islip Ave

    Lot size
    0.38 lot acres
    Zone code
    BUS1
    Property type
    Office buildings
    APN
    0500-140.00-01.00-052.001
    APU
    500140000100052001

    Value Estimation

    Powered by Realmo proprietary methodology Last update: July 3, 2025

    • CAP approach

    • Comparable approach

    • Alternative Use

    Location Insight

    • Map
    • Local Demand
    City
    Brentwood
    County
    Suffolk
    State
    New York
    Longitude
    -73.2177
    Latitude
    40.7809
    CBSA code
    35620
    CBSA name
    NEW YORK-NORTHERN NEW JERSEY-LONG ISLAND, NY-NJ-PA METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2020
    $0.00
    $20,300
    $33,600
    $53,900
    -
    $278,846
    $461,538
    $740,384

    Comparable in this City

    • Value Estimation by Request
      0.23 Acres

      1758 Brentwood Rd

      OFFICE BUILDING • 0.23 Acres
      1758 Brentwood Rd, Brentwood, NY 11717-5522
      View Details
    • Value Estimation by Request
      0.43 Acres

      1241 Suffolk Ave

      PROFESSIONAL BUILDING • 0.43 Acres
      1241 Suffolk Ave, Brentwood, NY 11717
      View Details
    • Value Estimation by Request
      0.23 Acres

      120 Heyward St

      OFFICE BUILDING • 0.23 Acres
      120 Heyward St, Brentwood, NY 11717-2048
      View Details
    • Value Estimation by Request
      0.37 Acres

      659 Suffolk Ave

      OFFICE BUILDING • 0.37 Acres
      659 Suffolk Ave, Brentwood, NY 11717-4413
      View Details
    • Value Estimation by Request
      0.11 Acres

      1215 Suffolk Ave

      OFFICE BUILDING • 0.11 Acres
      1215 Suffolk Ave, Brentwood, NY 11717-4511
      View Details
    • Value Estimation by Request
      0.34 Acres

      350 Washington Ave

      OFFICE BUILDING • 0.34 Acres
      350 Washington Ave, Brentwood, NY 11717-1706
      View Details

    Similar Nearby for Sale

    • Contact for pricing
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      Turnkey Restaurant Opportunity

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      0.38 Acres

      Vacant Land in Brentwood, NY

      0.38 acre vacant land parcel available for sale.
      Vl Adams Ave, Brentwood, NY 11717
      View Details
    • Contact for pricing
      80,000 SF

      Industrial Property with Large Yard

      80,000 SF industrial property with ample office space.
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    Similar Nearby for Lease

    • Contact for pricing
      50,842 SF

      Brentwood Office Space Available

      Office space available for rent in Brentwood, New York.
      Islip Ave, Brentwood, NY 11717
      View Details
    • $3,800 /Mo
      900 SF

      Brentwood Office Space for Lease

      Commercial space for lease in Brentwood, NY. Long term lease.
      120 Heyward St, Brentwood, NY 11717
      View Details
    • $36,000

      Brentwood Warehouse with Outside Storage

      Warehouse with retail frontage and significant outside storage space.
      920 Crooked Hill Rd, Brentwood, NY 11717
      View Details
    • $6,900 /Mo

      Turnkey Pizzeria/Restaurant in Brentwood, NY

      Fully equipped pizzeria/restaurant with wood-burning oven for rent.
      345 Washington Ave, Brentwood, NY 11717
      View Details
    • $16 SF/Yr
      24,000 SF

      Free Standing Building Near LIRR

      Free standing building with parking near Deer Park LIRR.
      1 Rodeo Dr, Edgewood, NY 11717
      View Details
    • $6,900 /Mo
      2,200 SF

      Turnkey Pizzeria/Restaurant in Brentwood, NY

      Fully equipped restaurant with wood-burning oven in a prime location.
      339 Washington Ave, Brentwood, NY 11717
      View Details

    Property Visit Statistics

    • Visits by month
      15.1k
    • Visitors by month
      6.4k
    • Avg Time on site
      7 min
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    1556 Islip Ave
    Brentwood, NY 11717-6023
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    Realmo Value Estimation

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.

    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.

    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
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