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    Property profile & analytics

    800 Delaware Ave Buffalo, NY 14209-2006

    • Office buildings
    • 29,824 SF
    • 2.28 lot acres
    OFF-MARKET
    Value Estimation
    $2,335,000
    Last Sale
    Jun 02, 2020
    $2,500,000
    Location Intelligence
    Property ID
    US63-3003198
    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

    • The Knox Mansion / Historical Landmark
    • Cellino Law Accident Attorneys / Trial Attorney / Law Firm

    Property Details for 800 Delaware Ave

    Year built
    1895
    Lot size
    2.28 lot acres
    Property size
    29,824 SF
    Zone code
    N-2R
    Property type
    Office buildings
    APN
    140200 100.62-2-4
    APU
    1402001006224

    Value Estimation

    by Realmo proprietary methodology Last update: July 3, 2025

    • AI approach

      CAP return
      Estimation
      Estimation
      $2,295,000

    • CAP approach

      CAP return
      Estimation
      6%
      $2,350,000
      6.5%
      $2,495,000
      7%
      $2,420,000

    • Comparable approach

      Method
      Estimation
      Relative Method
      $2,680,000
      Geo Method
      $2,250,000

    • Alternative Use

      Use
      Estimation
      Distribution
      $2,590,000
      Retail
      $2,625,000
      Mixed-Use
      $2,540,000
      Hospitality
      $2,245,000
      Educational
      $2,425,000
      Residential Income
      $2,530,000
      Energy
      $2,015,000
      Income-Based Land
      $2,540,000
      Food Service
      $2,055,000

    Location Insight

    • Map
    • Local Demand
    City
    Buffalo
    County
    Erie
    State
    New York
    Longitude
    -78.8728
    Latitude
    42.9062
    CBSA code
    15380
    CBSA name
    BUFFALO-NIAGARA FALLS, NY 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
    $11,496
    $500,700
    $1,711,300
    $2,212,000
    -
    $715,286
    $2,444,714
    $3,160,000

    Comparable in this City

    • Value Estimation by Request
      44,402 SF

      33 Dodge St

      OFFICE BUILDING • 44,402 SF
      33 Dodge St, Buffalo, NY 14209
      View Details
    • Value Estimation
      $60,000
      5,780 SF

      999 Delaware Ave

      OFFICE BUILDING • 5,780 SF
      999 Delaware Ave, Buffalo, NY 14209-1805
      View Details
    • Value Estimation
      $305,000
      3,492 SF

      1237 Delaware Ave

      PROFESSIONAL BUILDING • 3,492 SF
      1237 Delaware Ave, Buffalo, NY 14209-1435
      View Details
    • Value Estimation
      $265,000
      12,636 SF

      1437 Main St

      OFFICE BUILDING • 12,636 SF
      1437 Main St, Buffalo, NY 14209-1732
      View Details
    • Value Estimation
      $500,000
      24,782 SF

      1236 Main St

      OFFICE BUILDING • 24,782 SF
      1236 Main St, Buffalo, NY 14209-2112
      View Details
    • Value Estimation by Request
      14,804 SF

      844 Delaware Ave

      OFFICE BUILDING • 14,804 SF
      844 Delaware Ave, Buffalo, NY 14209-2008
      View Details

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      Delaware Avenue Class A Office

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      Historic Williams Butler Mansion ForSale

      Historic 28,000 SF Williams Butler Mansion in park-like setting.
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    • $1,250,000
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      Stone Multi-Family Property Near Delaware

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    Similar Nearby for Lease

    • $30 SF/Yr
      28,531 SF

      Historic Office Space in Buffalo

      Historic office space for lease in the Williams Butler Mansion.
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    • $30 SF/Yr
      28,531 SF

      Historic Office Space in Buffalo

      Historic office space for lease in the Delaware Preservation District.
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      View Details
    • Contact for pricing
      11,787 SF

      Updated Medical/Business Office Space

      Updated medical/business office space available for rent.
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      View Details
    • $21 SF/Yr
      32,211 SF

      1115 Main St Office Space

      Prime Buffalo Medical Campus Office
      1115 Main Rd, Buffalo, NY 14209
      View Details
    • $15 SF/Yr
      1,700 SF

      Prime Office Space Available

      Office space for rent with central location and amenities.
      1275 Delaware Ave, Buffalo, NY 14209
      View Details
    • $17 SF/Yr
      38,682 SF

      Prime Buffalo Office Space

      10,000+ SF Available, Main Street Location
      1100 Main Rd, Buffalo, NY 14209
      View Details
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    800 Delaware Ave
    Buffalo, NY 14209-2006
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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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