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

    48 Portland St Fond du Lac, WI 54935

    • Commercial real estate
    • 14,801 SF
    • 0.50 lot acres
    OFF-MARKET
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US92-0183759
    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

    • Portland Street Parking Ramp / Department Store

    Property Details for 48 Portland St

    Lot size
    0.50 lot acres
    Property size
    14,801 SF
    Property type
    Commercial real estate
    APN
    FDL-15-17-10-44-818-00

    Description

    This exceptional executive office building, located at 48 N Portland Street in Fond du Lac, Wisconsin, presents a compelling investment opportunity. Boasting 14,801 square feet of well-appointed office space, this property is zoned B-3 and sits on a sizable 0.496-acre lot. The building offers ample parking with 10 spaces available for tenants and visitors. The property's address is 48 N Portland St, Fond du Lac, WI 54935, and its location within Fond du Lac County provides convenient access to local amenities and transportation networks. The asking price for this turnkey executive office building is $495,000. The property's Assessed Parcel Number (APN) is FDL-15-17-10-44-818-00. This presents a rare chance to acquire a substantial and well-situated office property in a thriving Wisconsin community. The building's size and zoning make it suitable for a variety of executive office uses. The ample parking ensures convenient access for employees and clients. This is an excellent opportunity for investors seeking a strong return on investment in a stable market. The property's location and size make it an attractive option for businesses looking to establish or expand their presence in Fond du Lac.

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

    • CAP approach

    • Comparable approach

    • Alternative Use

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

    Location Insight

    • Map
    • Local Demand
    City
    Fond du Lac
    County
    Fond du Lac
    State
    Wisconsin
    Longitude
    -88.446241
    Latitude
    43.780111

    Comparable in this City

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      Prime Fond du Lac Office Complex

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      C-2 Zoned Land with Office

      1.2+ acres with 11,000 sq ft office space available.
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      Commercial Condo in Fond du Lac

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    Similar Nearby for Sale

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    • $700,000
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      Prime Medical Office Condo, Fond du Lac

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    • $699,900
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      Fond du Lac Office Building

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    • $1,150,000
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      Prime Fond du Lac Office Complex

      Executive Suites, High ROI Potential
      864-868 Military Rd, Fond du Lac, WI 54935
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    • $450,000

      C-2 Zoned Land with Office

      1.2+ acres with 11,000 sq ft office space available.
      254 Winnebago Dr, Fond du Lac, WI 54935
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    • $699,000

      Commercial Condo in Fond du Lac

      6090 SF commercial condo with high-end finishes and tenants.
      101 Camelot Dr, Fond du Lac, WI 54935
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    Similar Nearby for Lease

    • $12 SF/Yr
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      Flex/Office Facility Near I-41

      Flex/office facility with fenced parking and outside storage available for rent.
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    • $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
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    • $650,000
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      Downtown Office Space with Parking

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

      Move-in ready office, 11,207 SF
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    • $8 SF/Yr
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      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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    48 Portland St
    Fond du Lac, WI 54935
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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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