Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Single-Story Office Building Available Title is generated by Realmo AI

    603 East Diehl Road, Naperville, IL 60563

    View on Map
    Claim this Listing
    Loading data...
    Loading data...
    Loading data...
    For Lease
    $12 SF/Yr $2,229/Mo (calc)

    Single-story office building offering 2,140 square feet for lease.

    Type:Office
    Property size:
    2,140 SF
    Added:
    Nov 22, 2025
    Days on Market:
    180
    Last Refresh:
    May 20 at 12:54 am

    Property Features for 603 East Diehl Road

    General Information

    Standard status
    Active
    Size
    2,140 SF
    Property subtype
    Office

    We can help!

    Listing Contact
    David Justh
    David Justh

    Listing agent David Justh

    Listing office

    Listing date Nov 22, 2025

    Source Cbre

    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 David Justh

    HighLights

    • Single‑story office building

    Overview

    This single-story office building offers 2,140 square feet of space and is available for lease. The property is located on East Diehl Road in Naperville, Illinois.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    FedEx Drop Box Postal Service Kid's Kampus Daycare Center Orkin Garden Center Jennifer Skrabutenas Alternative Medicine Practice Dupage Dietitians | Lisle, ... Physician

    Suggested Use

    Restaurant Real Estate Agency Building Supply Law Firm Spa & Massage Center 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
    Naperville
    County
    Will
    State
    Illinois
    Longitude
    -88.1372
    Latitude
    41.8036

    Nearby Similar for Lease

    • Contact for pricing

      Updated Office Space Near Metra

      Turnkey office space in high-traffic location near Naperville Metra.
      610 N Washington Street, Naperville, IL 60563
      View Details
    • Contact for pricing
      23,979 SF

      Naperville Commercial Sublease Opportunity

      High-image Class A space with updated office and warehouse.
      2012 Corporate Lane, Naperville, IL 60563
      View Details
    • Contact for pricing

      Prime Naperville Office Space

      Updated office space near Metra station in high-traffic location.
      610 N Washington Street, Naperville, IL 60563
      View Details
    • Sponsored
      $129-$9,296/Mo
      11-1,292 SF

      Main Street Promenade

      50 Main St, Unit 200, Naperville, IL 60540
      View Details
    • Sponsored
      $129-$5,356/Mo
      11-1,292 SF

      IL, Naperville - Route 59

      4055 Route 59, Unit 100, Naperville, IL 60564
      View Details
    • Contact for pricing

      Downtown Naperville Office Space

      Lower level office space with coffee bar in downtown Naperville.
      25 S Washington Street, Naperville, IL 60540
      View Details
    • $19 SF/Yr
      10,000 SF

      Professional Office Space Available

      2,500 SF office suite in a convenient Naperville location.
      1879 High Grove Lane, Naperville, IL 60540
      View Details
    • Contact for pricing

      Naperville Executive Office Suites Available

      Executive office suites for lease in central Naperville location.
      2272 95th Street, Naperville, IL 60564
      View Details
    • $14 SF/Yr
      6,505 SF

      Industrial/Office Space in Naperville

      52,196 SF industrial/office space on 4.64 acres for lease.
      1841 Centre Point Circle, Naperville, IL, 60563
      View Details
    • $13 SF/Yr
      14,040 SF

      Medical Office Space Available

      Medical office space for rent in Naperville, Illinois.
      1795-1807 S Washington Street, Naperville, IL 60565
      View Details
    • Contact for pricing

      Updated Office Space Near Downtown

      Recently updated office space with flexible options near downtown.
      849 N Ellsworth Street, Naperville, IL 60563
      View Details
    • $25 SF/Yr
      7,800 SF

      Naperville Retail, Medical, Office Space

      Prime location on Ogden Avenue, ideal for retail or office.
      1001 E Ogden Ave, Naperville, IL 60563
      View Details

    FAQs

    What type of property is this?
    Office building - Single-story office building offering 2,140 square feet for lease.
    Where is this office building located?
    The property is located at 603 East Diehl Road Naperville, IL.
    What is the lease rate?
    The lease rate is $12 SF/Yr.
    What are key features of this property?
    This property features: Single‑story office building
    (630) 573-1273
    We can help!
    Listing Contact
    David Justh
    David Justh
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    603 East Diehl Road, Naperville, IL, 60563
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!