Add Listing
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    256 Mason Ave Staten Island, NY 10305-3408

    • Office buildings
    • 77,502 SF
    • 1.29 lot acres
    OFF-MARKET
    Value Estimations
    $19,815,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US63-3055068
    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

    • Bariatric Surgery at Staten Island University Hospital / Medical Clinic / Hospital
    • Palliative Care Management Team / Medical Clinic
    • Eleny Romanos-Sirakis, MD / Pediatrician / Medical Clinic
    • Betty M. Constant, NP / Physician
    • Dr. Edahn J. Isaak, MD / Physician

    Property Details for 256 Mason Ave

    Year built
    1986
    Lot size
    1.29 lot acres
    Property size
    77,502 SF
    Zone code
    R3-1
    Property type
    Office buildings
    APN
    03355-0050
    APU
    33550050

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $12,161,000
      Market price range: $4.03M - $12.2M

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $23,200,000
      Current use
      AUTO REPAIR, GARAGE
      $27,215,000
      Change: +17% Conversion: Difficult
      RETAIL STORES
      $25,770,000
      Change: +11% Conversion: Moderate
      COMMERCIAL (GENERAL)
      $22,580,000
      Change: -3% Conversion: Easy

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

    Location Insight

    • Map
    • Local Demand
    City
    Staten Island
    County
    Richmond
    State
    New York
    Longitude
    -74.0862
    Latitude
    40.5863
    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
    2024
    $115,950
    $1,009,800
    $20,884,050
    $21,893,850
    -
    $2,244,000
    $49,412,000
    $51,656,000

    Comparable in this City

    • Value Estimation by Request
      1,529 SF

      1500 Hylan Blvd

      PROFESSIONAL BUILDING • 1,529 SF
      1500 Hylan Blvd, Staten Island, NY 10305-1938
      View Details
    • Value Estimation
      $1,045,000
      5,448 SF

      867 Father Capodanno Blvd

      PROFESSIONAL BUILDING • 5,448 SF
      867 Father Capodanno Blvd, Staten Island, NY 10305-4041
      View Details
    • Value Estimation
      $570,000
      2,292 SF

      114 Railroad Ave, Unit O

      OFFICE BUILDING (MULTI-STORY) • 2,292 SF
      114 Railroad Ave, Staten Island, NY 10305-1442
      View Details
    • Value Estimation
      $690,000
      2,358 SF

      1676 Hylan Blvd

      PROFESSIONAL BUILDING • 2,358 SF
      1676 Hylan Blvd, Staten Island, NY 10305-1929
      View Details
    • Value Estimation
      $905,000
      3,200 SF

      345 Seaview Ave

      PROFESSIONAL BUILDING • 3,200 SF
      345 Seaview Ave, Staten Island, NY 10305-2244
      View Details
    • Value Estimation
      $605,000
      2,225 SF

      555-557 Tompkins Ave

      PROFESSIONAL BUILDING • 2,225 SF
      555-557 Tompkins Ave, Staten Island, NY 10305
      View Details

    Similar Nearby for Sale

    • $1,300,000
      2,880 SF

      Staten Island Commercial Building For Sale

      Two-story, 2,880 SF building suitable for various uses.
      343 Sand Ln, Staten Island, NY 10305
      View Details
    • New
      $1,639,000
      4,590 SF

      Mixed-Use Building in Rosebank

      Legal 3-family mixed-use building with storefront in Rosebank.
      1256 Bay Street Lndg, Staten Island, NY 10305
      View Details
    • $1,775,000
      3,750 SF

      New Mixed-Use Staten Island Building

      Newly constructed mixed-use building in a prime Staten Island location.
      1230 Bay Street Lndg, Staten Island, NY 10305
      View Details
    • New
      $1,430,000
      2,875 SF

      Prime Bay Street Commercial Property

      High-visibility commercial property in ideal location for restaurant, retail, office.
      1221 Bay Street Lndg, Staten Island, NY 10305
      View Details

    Similar Nearby for Lease

    • $1,600 /Mo
      825 SF

      Staten Island Commercial Space Available

      Move-in ready office/retail space in a high-visibility location.
      207 Old Town Rd, Staten Island, NY 10305
      View Details
    • $2,000 /Mo
      1,200 SF

      Turnkey Medical Office on Hylan

      Move-in ready medical office in a high-traffic Staten Island location.
      186 Hylan Blvd, Staten Island, NY 10305
      View Details
    • $3,200 /Mo
      551 SF

      Staten Island Office Space Available

      Well-located, cost-effective office space with parking in Staten Island.
      1186 Hylan Blvd, Staten Island, NY 10305
      View Details
    • $4,000 /Mo
      800 SF

      Bay Street Storefront Opportunity

      Storefront in Rosebank neighborhood with high visibility and modern elegance.
      1270 Bay Street Lndg, Staten Island, NY 10305
      View Details
    • Contact for pricing

      Retail Space for Lease

      Retail space available for lease.
      17 Hylan Blvd, Staten Island, NY 10305
      View Details
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    256 Mason Ave
    Staten Island, NY 10305-3408
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!