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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    306 Main St Port Washington, NY 11050-2707

    • Retail space
    • 862 SF
    • 0.06 lot acres
    OFF-MARKET
    Value Estimations
    $625,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US63-0277568
    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

    • Doctors Supply / Medical Equipment Supplier
    • Harbor Deli / Deli
    • Harbor Burgers N' Shakes / Hamburger Restaurant
    • Harbor Deli Caterers & Event Planners / Caterer

    Property Details for 306 Main St

    Year built
    1923
    Construction
    FRAME
    Lot size
    0.06 lot acres
    Property size
    862 SF
    Property type
    Retail space
    APN
    05-051-00-0041
    APU
    5051000041

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $814,000
      Market price range: $270k - $815k
      AI Estimate
      $438,000
      Market price range: $28.2k - $469k

    • Alternative Use

      Use
      Estimation
      RETAIL STORES
      $490,000
      Current use
      NEIGHBORHOOD: SHOPPING CENTER
      $755,000
      Change: +54% Conversion: Moderate
      OFFICE BUILDING
      $610,000
      Change: +24% Conversion: Easy
      AUTO REPAIR, GARAGE
      $565,000
      Change: +15% Conversion: Difficult
      COMMERCIAL (GENERAL)
      $560,000
      Change: +14% Conversion: Easy
      WAREHOUSE, STORAGE
      $435,000
      Change: -12% Conversion: Difficult

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Port Washington
    County
    Nassau
    State
    New York
    Longitude
    -73.6995
    Latitude
    40.8324
    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
    2023
    $28,518
    $945
    $3,309
    $4,254
    -
    $0.00
    $0.00
    $425,400

    Comparable in this City

    • Value Estimation
      $1,435,000
      3,500 SF

      938 Prt Washington Blvd

      RETAIL STORES (PERSONAL SERVICES) • 3,500 SF
      938 Prt Washington Blvd, Port Washington, NY 11050-2968
      View Details
    • Value Estimation by Request
      900 SF

      710 Prt Washington Blvd

      RETAIL STORES (PERSONAL SERVICES) • 900 SF
      710 Prt Washington Blvd, Port Washington, NY 11050-3720
      View Details
    • Value Estimation by Request
      1,738 SF

      24 Main St, Unit A-24B

      RETAIL STORES (PERSONAL SERVICES) • 1,738 SF
      24 Main St, Port Washington, NY 11050-2917
      View Details
    • Value Estimation
      $885,000
      1,800 SF

      37 Ave A A

      RETAIL STORES (PERSONAL SERVICES) • 1,800 SF
      37 Ave A A, Port Washington, NY 11050-2457
      View Details
    • Value Estimation
      $505,000
      2,150 SF

      42 Main St

      RETAIL STORES (PERSONAL SERVICES) • 2,150 SF
      42 Main St, Port Washington, NY 11050-2919
      View Details
    • Value Estimation by Request
      1,221 SF

      158 Main St

      RETAIL STORES (PERSONAL SERVICES) • 1,221 SF
      158 Main St, Port Washington, NY 11050-3212
      View Details

    Similar Nearby for Sale

    • $499,999
      2,000 SF

      Mechanic Shop with Gas Station

      Established mechanic shop, gas station, and store on high-traffic road.
      655 Port Washington Blvd, Port Washington, NY 11050
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    • $2,500,000
      3,352 SF

      Freestanding Retail Property in Port Washington

      Single-tenant net lease investment in affluent Port Washington.
      1000 Port Washington Blvd, Port Washington, NY 11050
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    • $960,000

      Port Washington Commercial Property For Sale

      Commercial property with multiple rental spaces, storage, and ample parking.
      17 S Maryland Ave, Port Washington, NY 11050
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    • $788,000
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      Prime Port Washington QSR

      1600 SF Retail Space, $788,000
      166 Shore Rd, Port Washington, NY 11050
      View Details
    • $3,500,000
      6,000 SF

      Mixed-Use Building with Retail

      Renovated mixed-use property with retail and apartments, parking available.
      118-120 Shore Rd, Port Washington, NY 11050
      View Details
    • $1,694,999
      1.32 Acres

      Sands Point Land with Approved Plans

      1.3 acres in Sands Point with approved 6,000 sqft home plans.
      36 Cow Neck Rd, Sands Point, NY 11050
      View Details

    Similar Nearby for Lease

    • $3,000 /Mo

      Versatile Office/Retail Space Available

      Mint condition office/retail space near Port Washington LIRR Station.
      30 Main St, Port Washington, NY 11050
      View Details
    • Contact for pricing
      1,781 SF

      Prime Retail/Medical/Professional Space Available

      Retail/Medical/Professional space on Long Island's affluent North Shore.
      110 Main St, Port Washington, NY 11050
      View Details
    • $3,000 /Mo
      7,379 SF

      Retail Space in Port Washington

      Prime retail space with open layout and full basement.
      664 Port Washington Blvd, Port Washington, NY 11050
      View Details
    • $4,600 /Mo
      7,379 SF

      Retail Space in Port Washington

      Bright retail space with full basement in prime location.
      660 Port Washington Blvd, Port Washington, NY 11050
      View Details
    • Contact for pricing
      1,500 SF

      Retail Space on Port Washington

      Retail space available on heavily trafficked Port Washington Boulevard.
      475 Port Washington Blvd, Port Washington, NY 11050
      View Details
    • Contact for pricing
      2,504 SF

      Retail Space in Grocery Anchored Center

      Retail space available in grocery anchored shopping center on Shore Road.
      59 Shore Rd, Port Washington, NY 11050
      View Details
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    306 Main St
    Port Washington, NY 11050-2707
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    Realmo Value Estimations

    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.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    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.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    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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