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    Well-Maintained Janesville Duplex For Sale Title is generated by Realmo AI

    1802-1806 Randolph Road, Janesville, WI 53545

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    For Sale
    $315,000

    Duplex-side by side,1 story - Janesville, WI

    Lot size:
    0.24 Acres
    Added:
    May 28, 2026
    Days on Market:
    2
    Last Refresh:
    May 29 at 5:06 pm

    Property Features for 1802-1806 Randolph Road

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R1
    Bedrooms
    4
    Rooms
    Basement, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Laundry
    Parking
    2
    Parking features
    Garage
    Basement Y/N
    1
    Standard status
    Active
    APN
    0219300026
    Lot size
    0.24 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    4267

    Utilities

    Heating system
    Forced Air

    Building Details

    Year built
    1967
    Floors in Building
    1
    Number of units
    2
    Architectural style
    Other

    We can help!

    Listing Contact
    Donna Panico
    Donna Panico

    Listing agent Donna Panico

    Listing office Coldwell Banker The Realty Group 4435 N State Road 26, Janesville, WI

    Listing date May 28, 2026

    MLS# 2024162 Listing URL

    Copyright © 2026 REALTORS® Association of South Central Wisconsin. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Duplex offers investment potential or owner‑occupancy with rental income.
    • Each unit has a private basement with laundry hookups and a private yard.
    • Unit 1802 features recent updates including a bathroom remodel (2026), new flooring (2024), water heater (2023), furnace & thermostat (2021).
    • Unit 1806 features new central air & reconditioned water softener (2023), new water heater (2021), and new furnace (2017).
    • New roof installed in 2020.
    • Tenants pay all utilities and handle lawn care & snow removal.

    Overview

    This east side, ranch-style duplex in Janesville, WI, presents an opportunity for investors or owner-occupiers seeking added income. The property has been well-maintained, with a new roof installed in 2020. Unit 1802 features a bathroom update completed in 2026, including a walk-in shower, flooring, sink, and toilet. Additional updates to this unit include a stove and flooring in the living room and hallway in 2024, a water heater in 2023, and a furnace and thermostat in 2021. Unit 1806 benefits from new central air and a reconditioned water softener installed in 2023, a new water heater in 2021, a re-glazed bathtub and new tub surround in 2019, and new flooring in the entryway, bathroom, and kitchen in 2019, as well as a new furnace in 2017. Situated on a 0.24-acre lot, the side-by-side duplex includes center garages. Each unit has its own private basement space with laundry hook-ups and a private yard space. Each tenant is responsible for all utilities, lawn care, and snow removal.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop

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

    Location Insight

    • Map
    • Local Demand
    City
    Janesville
    County
    Rock
    State
    Wisconsin
    Longitude
    -89.000746
    Latitude
    42.707116

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    FAQs

    What type of property is this?
    Duplex - East side Janesville duplex, ideal for investors or owner-occupiers.
    Where is this duplex located?
    The property is located at 1802-1806 Randolph Road Janesville, WI.
    What is the asking price?
    The asking price for this property is $315,000.
    What are key features of this property?
    This property features: Duplex offers investment potential or owner‑occupancy with rental income.; Each unit has a private basement with laundry hookups and a private yard.; Unit 1802 features recent updates including a bathroom remodel (2026), new flooring (2024), water heater (2023), furnace & thermostat (2021).
    (608) 921-0502
    We can help!
    Listing Contact
    Donna Panico
    Donna Panico
    Real Estate License ID: 5681090
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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.

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