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    223 Mathilda Ave Sunnyvale, CA 94086-4830
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    Property profile & analytics

    223 Mathilda Ave, Sunnyvale, CA 94086-4830

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    • Office buildings
    • 154,987 SF
    • 4.19 lot acres
    Off-Market
    Property ID
    US09-1364026
    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.

    Value Estimations
    Cap Rate Potential
    Location Intelligence

    Current Use by Public Records

    • 23andMe / Corporate Office

    Property Details for 223 Mathilda Ave

    Year built
    2018
    Lot size
    4.19 lot acres
    Zone code
    PPSPI
    Property type
    Office buildings
    APN
    165-27-010
    APU
    16527010

    Sales History

    Date Price Buyer Seller Deed Type Mortgage
    Jun 5, 2025 $87,750,000 223 Mathilda Owner LLC Scg Grove 221 LLC Grant Deed —
    Mar 15, 2019 $183,000,000 Scg Grove 221 LLC 221 N Mathilda LLC Grant Deed $55M · Thrivent Fin'l/lutherans
    Jun 27, 2018 — 221 N Mathilda LLC — Deed · related $66.2M · Us Bk
    May 22, 2017 — 221 N Mathilda LLC — Trustees Deed · related $55.4M · Us Bk
    Jul 9, 2014 $16,100,000 221 N Mathilda LLC Mellow Anthony K Trust Grant Deed —
    Jul 8, 2014 — Mellow,anthony K Trust Mellow Trust Quit Claim Deed · related —
    Dec 5, 2013 — Anthony K Mellow Mellow,eva J Affidavit Of Death · related —
    — — 221 N Mathilda LLC — Loan Modification · related $66.2M · Us Bk

    Value Estimations

    based on Realmo’s proprietary methodology
    • CAP approach

      CAP Return
      Estimation
      6%
      $61,255,000
      6.5%
      $56,545,000
      7%
      $52,505,000
    • Comparable approach

      Method
      Estimation
      AI Estimate
      $42,818,000
      Market price range: $15.5M - $42.8M
    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $97,700,000
      Current use
      RETAIL STORES
      $84,355,000
      Change: -14% Conversion: Moderate

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


    Location Insight

    • Map
    • Local Demand
    City
    Sunnyvale
    County
    Santa Clara
    State
    California
    Longitude
    -122.034
    Latitude
    37.383
    CBSA code
    41940
    CBSA name
    SAN JOSE-SUNNYVALE-SANTA CLARA, CA 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
    2022
    $0.00
    $42,351,983
    $172,028,255
    $214,380,238
    -
    $0.00
    $0.00
    $0.00
    More about this property
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