Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    The Largest CRE Database in the US with Over 1 Million Listings

    427 Wisconsin Avenue Oak Park, IL 60302

    View on Map
    Loading data...
    Loading data...
    Loading data...
    For Sale
    $549,900

    Duplexes

    Type:Multifamily
    Added:
    Mar 2, 2026
    Days on Market:
    30
    Last Refresh:
    Mar 16 at 2:21 pm

    Property Features for 427 Wisconsin Avenue

    General Information

    Standard status
    Active
    Property subtype
    Multifamily

    Building Details

    Year Built
    1883

    We can help!

    Listing Contact
    Kealan O'Neil
    Kealan O'Neil

    Listing agent Kealan O'Neil License #471.018734

    Listing office O’Neil Property Group

    Listing date Mar 2, 2026

    Source Crexi

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of O’Neil Property Group

    Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Law Firm Restaurant Real Estate Agency Spa & Massage Center Hair Salon Dental Office Nail Salon Food Market Grocery & Convenience Store Daycare Center

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Oak Park
    County
    Cook
    State
    Illinois
    Longitude
    -87.8025986
    Latitude
    41.8804167

    Nearby Similar for Sale

    • $825,000

      Fully Leased Oak Park Investment

      Multi-tenant commercial building in downtown Oak Park, fully leased.
      720 Lake Street, Oak Park, IL 60301
      View Details
    • $580,000

      Oak Park Multi-Family Investment

      Classic three-flat in prime Oak Park location.
      511 N TAYLOR Avenue, Oak Park, IL 60302
      View Details
    • $723,000

      Victorian Three-Flat in Oak Park

      Charming Victorian three-flat in Oak Park's historic district.
      227 N MARION Street, Oak Park, IL 60302
      View Details
    • $425,000

      Oak Park Multi-Family Property

      Legal non-conforming 2-flat in Oak Park, Illinois.
      1140 S Harvey Avenue, Oak Park, IL 60304
      View Details
    • $2,200,000

      Oak Park Commercial Opportunity

      Commercial property for sale in Oak Park, Illinois.
      401 Harrison Street, Oak Park, IL 60304
      View Details
    • $1,250,000

      Updated Three-Unit Building in Oak Park

      Renovated three-unit building with modern updates and historic charm.
      1101 S OAK PARK Avenue, Oak Park, IL 60304
      View Details
    • $159,000

      Oak Park Commercial Opportunity

      Commercial property in Oak Park with high visibility and recent upgrades.
      6039 North Avenue, Oak Park, IL 60302
      View Details
    • $449,000

      Oak Park Mixed-Use Investment

      High-traffic location with retail and residential income potential.
      97 Harlem Avenue, Oak Park, IL 60302
      View Details
    • $475,000

      Oak Park Mixed-Use Property

      Mixed-use property in Oak Park near Harlem and Chicago Avenues.
      1140 Erie Street, Oak Park, IL 60302
      View Details
    • $761,538

      Oak Park 7-Eleven For Sale

      Single tenant 7-Eleven in Oak Park, Illinois.
      240 Chicago Ave, Oak Park, IL 60302
      View Details
    • $1,150,000
      8,600 SF

      Retail Strip Center For Sale

      8-unit retail strip center in Oak Park, 90% occupied.
      6912-6926 W Roosevelt Road, Oak Park, IL 60304
      View Details
    • $2,350,000
      9,737 SF

      Oak Park Retail and Office

      Value-add investment opportunity in downtown Oak Park with high visibility.
      113-115 N. Marion Street, Oak Park, IL 60301
      View Details

    FAQs

    Where is this duplex located?
    The property is located at 427 Wisconsin Avenue Oak Park, IL.
    What is the asking price?
    The asking price for this property is $549,900.
    What are key features of this property?
    This property features: Zoned for multi‑unit or single‑family use, offering flexible living arrangements.; Opportunity to customize the space, currently owner‑occupied with no tenants.; Renovations underway upstairs with gas and plumbing in place for a kitchen and bath, allowing for a separate unit or spacious single‑family home.
    (630) 788-7273
    We can help!
    Listing Contact
    Kealan O'Neil
    Kealan O'Neil
    Real Estate License ID: 471.018734
    Learn More
    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.
    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.
    Sign Up Successful!
    You now have access to more from Realmo!