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    Oakbrook Terrace Commercial Building Title is generated by Realmo AI

    1S221 Summit Avenue, Oakbrook Terrace, IL 60181

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    Claim this Listing
    For Sale
    $449,900

    COMMERCIAL - Oakbrook Terrace, IL

    Type:Office
    Property size:
    2,000 SF
    Lot size:
    0.34 Acres
    Price / SF:
    $224/SF
    Added:
    Oct 31, 2025
    Days on Market:
    201
    Last Refresh:
    May 19 at 7:06 am

    Property Features for 1S221 Summit Avenue

    General Information

    Property type
    Commercial Sale
    Property subtype
    Office
    Standard status
    Active
    APN
    0622104021
    Size
    2,000 SF
    Lot size
    0.34 Acres

    Taxes and HOA fees

    Tax Year
    2024
    Tax Annual Amount
    7350

    Utilities

    Cooling system
    Central Air

    Building Details

    Year built
    1954
    Floors in Building
    1

    We can help!

    Listing Contact
    Chris Rosenburg
    Chris Rosenburg

    Listing agent Chris Rosenburg License #475120234

    Listing office United Real Estate - Chicago 1600 W 16th St, Ste T7, Oak Brook, IL

    Listing date Oct 31, 2025

    MLS# 12508531

    Copyright © 2026 Midwest Real Estate Data, LLC. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Excellent access to I‑88, I‑294, and I‑355.
    • High‑traffic corner location with over 14,000 cars per day.
    • Approximately 2,000 usable square feet with vaulted ceilings.
    • Features a mix of private office and open collaborative space.
    • Newer roof, siding, and windows.
    • Full basement for extra storage.

    Overview

    This commercial building is situated in a thriving business and retail district, offering excellent access to major expressways, including I-88, I-294, and I-355. The property benefits from great exposure, located on the corner of Summit Avenue and Morningside Drive, with a traffic count exceeding 14,000 cars per day. The building provides approximately 2,000 usable square feet of space, featuring vaulted ceilings and a mix of private offices and open collaborative areas. It includes three bathrooms and a full basement for extra storage. The building is fully sprinkled and has a newer roof, siding, and windows. The lot size is 0.3421 acres. Additional parking can be added to the back of the property. The current tenant will be moved out by November 15th.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Office Units

    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
    Oakbrook Terrace
    County
    DuPage
    State
    Illinois
    Longitude
    -87.9725558
    Latitude
    41.8599098

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    FAQs

    What type of property is this?
    Office units - Commercial building in thriving business district with expressway access.
    Where is this office units located?
    The property is located at 1S221 Summit Avenue Oakbrook Terrace, IL.
    What is the asking price?
    The asking price for this property is $449,900.
    What are key features of this property?
    This property features: Excellent access to I‑88, I‑294, and I‑355.; High‑traffic corner location with over 14,000 cars per day.; Approximately 2,000 usable square feet with vaulted ceilings.
    (630) 748-4660
    We can help!
    Listing Contact
    Chris Rosenburg
    Chris Rosenburg
    Real Estate License ID: 475120234
    Learn More
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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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