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    Unique Office Building with Terraces Title is generated by Realmo AI

    800-1000 Royce Boulevard, Oakbrook Terrace, IL 60181

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    For Lease
    $15 SF/Yr $27,500/Mo (calc)

    Customizable office spaces with terraces in a desirable location.

    Type:Office
    Property size:
    22,000 SF
    Added:
    Mar 6, 2026
    Days on Market:
    76
    Last Refresh:
    Apr 5 at 11:10 pm

    Property Features for 800-1000 Royce Boulevard

    General Information

    Standard status
    Active
    Size
    22,000 SF
    Property subtype
    Office

    Building Details

    Year Built
    1990

    Spaces For Lease

    at 800-1000 Royce Boulevard Contact us

    We can help!

    Listing Contact
    Adam Johnson
    Adam Johnson

    Listing agent Adam Johnson License #475123331

    Listing office NAI Hiffman | Oakbrook Terrace

    Listing date Mar 6, 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 NAI Hiffman | Oakbrook Terrace

    HighLights

    • Rare single‑tenant building opportunity.
    • Enjoy over 8,000 SF of exterior terrace spaces.
    • 61 heated, covered parking spaces.
    • Spaces ready to be customized.
    • Great access to restaurants, hotels, and shopping.
    • Full‑floor opportunities starting at 22,000 SF.

    Overview

    The property at 800-1000 Royce offers a unique office environment, featuring a soaring atrium with striking architectural features and over 8,000 square feet of exterior terrace space. Located in a desirable office submarket, this property presents an opportunity for customization. The building offers full-floor opportunities starting at 22,000 square feet. The third floor features unique lifted ceilings. Outdoor terraces are located on the second and third floors. The property includes 61 heated, covered parking spaces and provides access to restaurants, hotels, and shopping.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Office buildings

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Oakbrook Terrace
    County
    DuPage
    State
    Illinois
    Longitude
    -87.979429
    Latitude
    41.850308

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    FAQs

    What type of property is this?
    Office building - Customizable office spaces with terraces in a desirable location.
    Where is this office building located?
    The property is located at 800-1000 Royce Boulevard Oakbrook Terrace, IL.
    What is the lease rate?
    The lease rate is $15 SF/Yr.
    What are key features of this property?
    This property features: Rare single‑tenant building opportunity.; Enjoy over 8,000 SF of exterior terrace spaces.; 61 heated, covered parking spaces.
    (630) 317-0729
    We can help!
    Listing Contact
    Adam Johnson
    Adam Johnson
    Real Estate License ID: 475123331
    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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    800-1000 Royce Boulevard, Oakbrook Terrace, IL 60181
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