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    Property profile & analytics

    21 N Portland St Fond du Lac, WI 54935

    • Office buildings
    • 3,752 SF
    • 0.14 lot acres
    For Sale
    View listing
    $460,000
    Value Estimation
    Last Sale
    Aug 12, 2021
    $175,000
    Location Intelligence
    Property ID
    US92-0431319
    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

    • Lavish Coffee / Coffee Shop
    • New Directions Chiropractic / Chiropractor / Health Consultant
    • Armon Empire Professional Services, L.L.C. - Licensed Barber / Hair Salon / Spa
    • The Great Escape Fond du Lac / Amusement Center
    • Home Helpers / Home Health Care Service

    Property Details for 21 N Portland St

    Year built
    1967
    Construction
    CONCRETE BLOCKS
    Lot size
    0.14 lot acres
    Property size
    3,752 SF
    Zone code
    B-3
    Property type
    Office buildings
    APN
    FDL-15-17-10-44-814-00
    APU
    FDL1517104481400

    Value Estimation

    by Realmo proprietary methodology Last update: July 3, 2025

    • AI approach

      CAP return
      Estimation
      Estimation
      $185,000

    • CAP approach

      CAP return
      Estimation
      6%
      $120,000
      6.5%
      $125,000
      7%
      $140,000

    • Comparable approach

      Method
      Estimation
      Relative Method
      $115,000
      Geo Method
      $150,000

    • Alternative Use

      Use
      Estimation
      Distribution
      $120,000
      Retail
      $130,000
      Mixed-Use
      $145,000
      Hospitality
      $145,000
      Educational
      $135,000
      Residential Income
      $160,000
      Energy
      $140,000
      Income-Based Land
      $165,000
      Food Service
      $115,000

    Location Insight

    • Map
    • Local Demand
    City
    Fond Du Lac
    County
    Fond Du Lac
    State
    Wisconsin
    Longitude
    -88.4455
    Latitude
    43.7796
    CBSA code
    22540
    CBSA name
    FOND DU LAC, WI 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
    $5,254
    $25,400
    $171,300
    $196,700
    -
    $33,764
    $227,708
    $261,472

    Comparable in this City

    • Value Estimation
      $295,000
      1,216 SF

      440 Hickory St

      OFFICE BUILDING • 1,216 SF
      440 Hickory St, Fond Du Lac, WI 54935
      View Details
    • Value Estimation
      $300,000
      3,096 SF

      885 Western Ave Ste, Unit 100

      OFFICE BUILDING • 3,096 SF
      885 Western Ave Ste, Fond Du Lac, WI 54935-3874
      View Details
    • Value Estimation
      $285,000
      1,640 SF

      97 Pioneer Rd Ste, Unit 200

      OFFICE BUILDING • 1,640 SF
      97 Pioneer Rd Ste, Fond Du Lac, WI 54935-3803
      View Details
    • Value Estimation
      $160,000
      1,888 SF

      885 Western Ave Ste, Unit 400

      OFFICE BUILDING • 1,888 SF
      885 Western Ave Ste, Fond Du Lac, WI 54935-3874
      View Details
    • Value Estimation by Request
      1,890 SF

      1880 Morris St

      OFFICE BUILDING • 1,890 SF
      1880 Morris St, Fond Du Lac, WI 54935-5653
      View Details
    • Value Estimation
      $410,000
      6,264 SF

      65 Pioneer Rd

      OFFICE BUILDING • 6,264 SF
      65 Pioneer Rd, Fond Du Lac, WI 54935-6151
      View Details

    Similar Nearby for Sale

    • $975,000
      10,770 SF

      Versatile Office Building For Sale

      Well-maintained office building with flexible space and high visibility.
      952 S Park Ave, Fond du Lac, WI 54935
      View Details
    • $460,000
      8,172 SF

      Fully Occupied Commercial Complex

      Commercial complex with diverse tenants and ample parking for sale.
      21 N Portland St, Fond du Lac, WI 54935
      View Details
    • $2,300,000
      76,086 SF

      Downtown Fond du Lac Office Building

      Class A Office, 76,086 SF, Redevelopment Potential
      30 Main St, Fond du Lac, WI 54935
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    • Contact for pricing
      5,188 SF

      Highway Visible Business Condo

      Business condo for lease with high visibility and ample parking.
      101 S Pioneer Rd, Fond du Lac, WI 54935
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    • $450,000
      11,912 SF

      Fond du Lac Office Building

      11,912 SF Office, Vacant, $450K
      254 Winnebago Dr, Fond du Lac, WI 54935
      View Details
    • $225,000
      4,000 SF

      Downtown Fond du Lac Retail/Office

      High-visibility retail/office building in downtown Fond du Lac.
      101 S Main St, Fond du Lac, WI 54935
      View Details

    Similar Nearby for Lease

    • $9 SF/Yr
      15,600 SF

      Fond du Lac Flex Space Available

      Modern Flex Space, Multiple Units, WI
      1285 Morris St, Fond du Lac, WI 54935
      View Details
    • $650,000
      5,264 SF

      Downtown Office Space with Parking

      Office space for rent in a prime downtown location.
      55 S Main St, Fond du Lac, WI 54935
      View Details
    • $16 SF/Yr
      8,444 SF

      Fond du Lac Executive Office Space

      Prime Retail/Office Space Available
      928 Main St, Fond du Lac, WI 54935
      View Details
    • $8 SF/Yr
      11,207 SF

      Prime Fond du Lac Office Space

      Move-in ready office, 11,207 SF
      1325 Main St, Fond du Lac, WI 54935
      View Details
    • $12 SF/Yr
      4,118 SF

      Flex/Office Facility Near I-41

      Flex/office facility with fenced parking and outside storage available for rent.
      1821 Morris St, Fond du Lac, WI 54935
      View Details
    • $8 SF/Yr
      3,001 SF

      Exchange at 104: Downtown Fond du Lac Office

      Prime Downtown Fond du Lac Office Space
      104 Main St, Fond du Lac, WI 54935
      View Details
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    21 N Portland St
    Fond du Lac, WI 54935
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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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