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    Oak Brook Move-In Ready Office Title is generated by Realmo AI

    125 Windsor Drive, Oak Brook, IL 60523

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    For Sale
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    Well-maintained office building with private suites and convenient access.

    Type:Office
    Property size:
    40,331 SF
    Added:
    Jan 27, 2026
    Days on Market:
    112
    Last Refresh:
    Apr 5 at 11:10 pm

    Property Features for 125 Windsor Drive

    General Information

    Standard status
    Active
    Size
    40,331 SF
    Property subtype
    Office

    Building Details

    Year Built
    1980

    Properties For Sale

    at 125 Windsor Drive Contact us

    We can help!

    Listing Contact
    Steve Chrastka

    Listing agent Steve Chrastka

    Listing office

    Listing date Jan 27, 2026

    Source Naiglobal

    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 Steve Chrastka

    HighLights

    • Prime Oak Brook location with I‑88 and I‑294 frontage and immediate access to 22nd Street amenities.
    • Move‑in ready space featuring private suite entrances, dedicated HVAC, internal restrooms and kitchens.
    • Parking directly outside the door.
    • On‑site ownership and property management.
    • 24‑hour access and tenant control of their own space.
    • Proximity to hotels, childcare, dining, shopping, healthcare, and Elmhurst‑Edwards Hospital (2.4 miles).

    Overview

    The Oak Brook Office Court at 125 Windsor Drive is a well-maintained office building featuring move-in ready spaces. The property offers individual private suite entrances, individually dedicated HVAC units, internal private restrooms and kitchens, and parking directly outside. On-site ownership and property management are available, along with 24-hour access, allowing tenants to control their own space. Located in the heart of Oak Brook, the property has I-88 frontage on the west and I-294 frontage on the east, with access to 22nd Street, a high-profile road with numerous amenities. Immediate access is available to hotels, childcare, dining, shopping, and healthcare services, including Elmhurst-Edwards Hospital, which is 2.4 miles away. The property also provides excellent interstate access to I-88, I-355, I-294, and Route 83 (Kingery Highway). Brand new spec suites are available within this 40331 square foot office building.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    OVM Services Business Administration Service Camera Originals Film Production Citywide Title Corporation Title Company The Mental Difference Counselor Capital Research & Recovery, ... Real Estate Agency

    Suggested Use

    Restaurant Real Estate Agency Building Supply Spa & Massage Center Law Firm Dental Office Big Box & Wholesale Store Auto Repair Shop Hair Salon Nail Salon

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

    Location Insight

    • Map
    • Local Demand
    City
    Oak Brook
    County
    DuPage
    State
    Illinois
    Longitude
    -87.9237
    Latitude
    41.8512

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    FAQs

    What type of property is this?
    Office building - Well-maintained office building with private suites and convenient access.
    Where is this office building located?
    The property is located at 125 Windsor Drive Oak Brook, IL.
    What are key features of this property?
    This property features: Prime Oak Brook location with I‑88 and I‑294 frontage and immediate access to 22nd Street amenities.; Move‑in ready space featuring private suite entrances, dedicated HVAC, internal restrooms and kitchens.; Parking directly outside the door.
    (630) 317-0746
    We can help!
    Listing Contact
    Steve Chrastka
    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.

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