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    Property profile & analytics

    817 Mayfair Ave Madison, WI 53714-1130

    • Warehouses
    • 4,200 SF
    • 0.58 lot acres
    OFF-MARKET
    Value Estimations
    $375,000
    Show details
    Cap Rate Potential
    7.3%
    Warehouses
    Location Intelligence
    Property ID
    US92-0589427
    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

    • Pumps & Equipment Inc. / Plumbing Supply Store

    Property Details for 817 Mayfair Ave

    Year built
    1953
    Lot size
    0.58 lot acres
    Property size
    4,200 SF
    Zone code
    IL
    Property type
    Warehouses
    APN
    0810-333-0088-1
    APU
    81033300881

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $365,000

    • CAP approach

      CAP Return
      Estimation
      6%
      $450,000
      6.5%
      $415,000
      7%
      $385,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $507,000
      Market price range: $410k - $944k
      AI Estimate
      $336,000
      Market price range: $182k - $516k

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

    Location Insight

    • Map
    • Local Demand
    City
    Madison
    County
    Dane
    State
    Wisconsin
    Longitude
    -89.325
    Latitude
    43.1104
    CBSA code
    31540
    CBSA name
    MADISON, 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
    2022
    $8,410
    $69,000
    $379,700
    $448,700
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $415,000
      5,000 SF

      510 Tasman St

      WAREHOUSE, STORAGE • 5,000 SF
      510 Tasman St, Madison, WI 53714-3154
      View Details
    • Value Estimation
      $395,000
      3,874 SF

      509 Tasman St

      WAREHOUSE, STORAGE • 3,874 SF
      509 Tasman St, Madison, WI 53714-3155
      View Details
    • Value Estimation
      $405,000
      2,400 SF

      3106 Commercial Ave

      WAREHOUSE, STORAGE • 2,400 SF
      3106 Commercial Ave, Madison, WI 53714-1448
      View Details
    • Value Estimation
      $435,000
      6,000 SF

      905 Dempsey Rd

      WAREHOUSE, STORAGE • 6,000 SF
      905 Dempsey Rd, Madison, WI 53714-3023
      View Details
    • Value Estimation
      $525,000
      10,000 SF

      501 Atlas Ave

      WAREHOUSE, STORAGE • 10,000 SF
      501 Atlas Ave, Madison, WI 53714-3107
      View Details
    • Value Estimation
      $1,575,000
      13,104 SF

      4253 Argosy Ct

      WAREHOUSE, STORAGE • 13,104 SF
      4253 Argosy Ct, Madison, WI 53714-3101
      View Details

    Similar Nearby for Sale

    • $2,300,000
      24,000 SF

      Madison Industrial Portfolio: 24,000 SF

      Seven-unit warehouse, ideal owner-user. Strong income, prime location.
      4450-4462 Robertson Rd, Madison, WI 53714
      View Details
    • $1,500,000
      21,490 SF

      Madison Flex/Industrial Building For Sale

      Highly visible flex/industrial building on Madison's East side.
      361 Blettner Blvd, Madison, WI 53714
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    • $265,000
      11,276 SF

      Madison Office Suite - Prime Location

      High-end office space, ideal for business owners.
      4001 Nakoosa Trl, Madison, WI 53714
      View Details
    • $969,000
      9,800 SF

      Madison Commercial Building - Prime Location

      High-Visibility Commercial Space, Excellent Investment
      43 Stoughton Rd, Madison, WI 53714
      View Details
    • $2,016,000

      5.56 Acres Vacant Land

      High visibility vacant land opportunity in Madison, Wisconsin.
      345 Blettner Blvd, Madison, WI 53714
      View Details
    • New
      $475,000
      0.27 Acres

      Well-Maintained Duplex in Madison, WI

      Updated ranch duplex on Madison's East Side with rental history.
      2-4 Meadowlark Dr, Madison, WI 53714
      View Details

    Similar Nearby for Lease

    • $11 SF/Yr
      9,800 SF

      Stoughton Road Industrial Building

      9,800 SF industrial building with showroom, warehouse, and flex space.
      43 S Stoughton Rd, Madison, WI 53714
      View Details
    • Contact for pricing
      18,689 SF

      East Madison Flex/Warehouse Building

      Office, flex, and warehouse space available for lease in Madison.
      4253 Argosy Ct, Madison, WI 53714
      View Details
    • $9 SF/Yr
      10,000 SF

      Industrial Space Available For Lease

      10,000 SF industrial space available for lease.
      4415-4419 Robertson Rd, Madison, WI 53714
      View Details
    • $6 SF/Yr
      13,994 SF

      Madison Warehouse/Flex Space Available

      East Madison warehouse or flex space with highway access.
      3944-3950 Commercial Ave, Madison, WI 53714
      View Details
    • $5 SF/Yr
      37,122 SF

      Warehouse with Showroom and Mezzanine

      Warehouse space featuring showroom, docks, drive-in door, and mezzanine.
      202-206 Regas Rd, Madison, WI 53714
      View Details
    • $9 SF/Yr
      5,000 SF

      Functional Industrial Space Available

      5,000 SF industrial space with warehouse and office areas.
      4419-4441 Robertson Rd, Madison, WI 53714
      View Details
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    817 Mayfair Ave
    Madison, WI 53714-1130
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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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