Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    819 821st N 21st St Milwaukee, WI 53233

    • Apartment buildings
    • 3,880 SF
    • 0.10 lot acres
    OFF-MARKET
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US92-0567853
    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

    • Apartment buildings

    Property Details for 819 821st N 21st St

    Year built
    1917
    Lot size
    0.10 lot acres
    Property size
    3,880 SF
    Zone code
    RM6
    Property type
    Apartment buildings
    APN
    389-1535-000
    APU
    3891535000

    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
    Milwaukee
    County
    Milwaukee
    State
    Wisconsin
    Longitude
    -87.9397
    Latitude
    43.0407
    CBSA code
    33340
    CBSA name
    MILWAUKEE-WAUKESHA-WEST ALLIS, 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
    $5,819
    $34,000
    $210,400
    $244,400
    -
    $34,000
    $210,400
    $244,400

    Comparable in this City

    • Value Estimation by Request
      0.24 Acres

      818 17th St

      APARTMENT HOUSE (5+ UNITS) • 0.24 Acres
      818 17th St, Milwaukee, WI 53233
      View Details
    • Value Estimation
      $18,000,000
      130,797 SF

      740 Wisconsin Ave, Unit 750

      APARTMENT HOUSE (5+ UNITS) • 130,797 SF
      740 Wisconsin Ave, Milwaukee, WI 53233-2400
      View Details
    • Value Estimation
      $6,080,000
      64,044 SF

      722 730th N 13th St, Unit 730

      APARTMENT HOUSE (5+ UNITS) • 64,044 SF
      722 730th N 13th St, Milwaukee, WI 53233-2233
      View Details
    • Value Estimation
      $1,000,000
      6,840 SF

      843 13th St

      APARTMENT HOUSE (5+ UNITS) • 6,840 SF
      843 13th St, Milwaukee, WI 53233-1725
      View Details
    • Value Estimation
      $2,375,000
      19,688 SF

      846 856th N 15th St, Unit 856

      APARTMENT HOUSE (5+ UNITS) • 19,688 SF
      846 856th N 15th St, Milwaukee, WI 53233-1799
      View Details
    • Value Estimation
      $3,905,000
      43,580 SF

      525 20th St

      APARTMENT HOUSE (5+ UNITS) • 43,580 SF
      525 20th St, Milwaukee, WI 53233-2548
      View Details

    Similar Nearby for Sale

    • $1,900,000
      23,535 SF

      Milwaukee Multifamily Investment

      36-unit brick building, high NOI potential.
      2820 W KILBOURN AVE, Milwaukee, WI 53233
      View Details
    • $375,000
      9,000 SF

      Milwaukee Church - Prime Location

      9,000 SF Church, $375K, High Visibility
      1102 21St St, Milwaukee, WI 53233
      View Details
    • $2,600,000
      16,477 SF

      Riverfront Warehouse with Expansion Potential

      Warehouse with river frontage, high ceilings, and expansion possibilities.
      2215 W Mount Vernon Ave, Milwaukee, WI 53233
      View Details
    • $2,600,000
      16,477 SF

      Menomonee Valley Sports Facility

      Prime Milwaukee location, 16,477 SF, high visibility.
      2215 Mount Vernon Ave, Milwaukee, WI 53233
      View Details
    • $2,662,500
      23,910 SF

      Retail Property on South 13th

      Retail property for sale with 23,910 square feet.
      3045 S 13Th St, Milwaukee, WI 53233
      View Details
    • $350,000
      0.09 Acres

      Milwaukee Mixed-Use Development Lot

      Prime .09-acre lot, buildable, near Marquette.
      2104 Wells St, Milwaukee, WI 53233
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      80,488 SF

      Restaurant Space Near Marquette University

      Second-generation restaurant space for lease near Marquette University.
      1400 W Wells St, Milwaukee, WI 53233
      View Details
    • $10 SF/Yr
      7,128 SF

      Menomonee Valley Flex Space Available

      Centrally located flex space with freeway access and on-site parking.
      272-274 N 12Th St, Milwaukee, WI 53233
      View Details
    • $17 SF/Yr
      41,042 SF

      Milwaukee Office Space for Lease

      Prime Milwaukee Office, 13,672 SF Available
      1036 Juneau Ave, Milwaukee, WI 53233
      View Details
    • Contact for pricing
      6,258 SF

      Marquette University Retail Space

      Prime Campus Retail, Multiple Units Available
      811 16Th St, Milwaukee, WI 53233
      View Details
    • $20 SF/Yr
      59,000 SF

      Executive Office Space, Milwaukee

      Modern Office Suite, 16,000 SF Available
      2601 Wisconsin Ave, Milwaukee, WI 53233
      View Details
    • $4 SF/Yr
      5,758 SF

      Flex Space Available For Rent

      5,758 square feet of flex space available for rent.
      2123 W Michigan St, Milwaukee, WI 53233
      View Details
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    819 821st N 21st St
    Milwaukee, WI 53233
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Google sign-in failed. Please try again or use another login method.