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    Freeport Duplex: Owner-Occupant Opportunity Title is generated by Realmo AI

    404-406 E Prospect Terrace, Freeport, IL 61032

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    For Sale
    $200,000

    MULTI_FAMILY - FREEPORT, IL

    Property size:
    2,560 SF
    Price / SF:
    $78/SF
    Added:
    Mar 11, 2026
    Days on Market:
    82
    Last Refresh:
    May 31 at 12:06 am

    Property Features for 404-406 E Prospect Terrace

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Bedrooms
    4
    Bathrooms
    2
    Rooms
    Bathroom 2, Bedroom 4, Bedroom 1, Bedroom 3, Basement, Bathroom 1, Bedroom 2
    Parking
    2
    Appliances
    Refrigerator, Stove/Cooktop
    Standard status
    Active
    APN
    181431478033
    Size
    2,560 SF

    Taxes and HOA fees

    Tax Year
    2024
    Tax Description
    PT LOT 4 BLK 1 GUITEAU'S ADD
    Tax Annual Amount
    1501

    Utilities

    Heating system
    Forced Air

    Building Details

    Year built
    1897
    Floors in Building
    1
    Number of units
    2
    Roof type
    Shingle

    We can help!

    Listing Contact
    Olga Kampmeier
    Olga Kampmeier

    Listing agent Olga Kampmeier License #475166479

    Listing office Keller Williams Realty Signature 4201 Galleria Dr., Loves Park, IL

    Listing date Mar 11, 2026

    MLS# 202601322 Listing URL

    Copyright © 2026 NorthWest Illinois Alliance of REALTORS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Unique homeownership program designed for renters with minimal upfront cash and simplified approval process.
    • Duplex featuring two separate units, each with 2 bedrooms and 1 bathroom.
    • Separate utilities and basement access for each unit.
    • Updated 100‑amp electrical service.
    • New vinyl plank flooring in both unit kitchens.
    • Suitable for owner‑occupants or investors.

    Overview

    This two-story duplex in Freeport, IL, presents a unique homeownership opportunity. Each unit features 2 bedrooms and 1 bathroom. The main floor unit includes a spacious living room, a separate dining room with hardwood flooring, a kitchen with new vinyl plank flooring, and main floor laundry hookups. The upper unit offers a light-filled living room, a separate dining room, and a kitchen also featuring new vinyl plank flooring. The property includes separate basement access and separate utilities. Updated 100-amp service is in place. The property, totaling 2560 square feet, is suitable for both owner-occupants and investors. It may also qualify for a homeownership program designed to help renters transition to ownership.
    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 Gym & Fitness Center Building Supply Accounting Firm

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

    Location Insight

    • Map
    • Local Demand
    City
    Freeport
    County
    Stephenson
    State
    Illinois
    Longitude
    -89.612574
    Latitude
    42.290071

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    FAQs

    What type of property is this?
    Duplex - Two-story duplex with separate utilities, ideal for owner-occupants.
    Where is this duplex located?
    The property is located at 404-406 E Prospect Terrace Freeport, IL.
    What is the asking price?
    The asking price for this property is $200,000.
    What are key features of this property?
    This property features: Unique homeownership program designed for renters with minimal upfront cash and simplified approval process.; Duplex featuring two separate units, each with 2 bedrooms and 1 bathroom.; Separate utilities and basement access for each unit.
    (815) 621-9180
    We can help!
    Listing Contact
    Olga Kampmeier
    Olga Kampmeier
    Real Estate License ID: 475166479
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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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    404-406 E Prospect Terrace, FREEPORT, IL 61032
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