Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Boulder Office Space Available Title is generated by Realmo AI

    5603 Arapahoe Avenue, Boulder, CO 80303

    View on Map
    Claim this Listing
    For Lease
    $10 SF/Yr $8,057/Mo (calc)

    Office space available for lease in Boulder, Colorado.

    Type:Office
    Property size:
    9,669 SF
    Added:
    Nov 22, 2025
    Days on Market:
    190
    Last Refresh:
    May 19 at 9:24 pm

    Property Features for 5603 Arapahoe Avenue

    General Information

    Standard status
    Active
    Size
    9,669 SF
    Property subtype
    Office

    Spaces For Lease

    at 5603 Arapahoe Avenue Contact us

    We can help!

    Listing Contact
    Martin Knape

    Listing agent Martin Knape

    Listing office CBRE | Boulder

    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 CBRE | Boulder

    HighLights

    • Office space available for lease.
    • Located in Boulder, Colorado.

    Overview

    Available for lease is an office space located at Boulder, Colorado. The property offers 9669 square feet of office space. The lease rate is $16 per square foot.
    Property Profile Location Intelligence

    Current Use by Public Records

    simuwatt (Bike/Boat/Book/etc) Store concept3D Inc. (Bike/Boat/Book/etc) Store Kinesis Dance Training Center Joint Effort Health ... Medical Clinic Biochar Algae Removal Water Treatment Supplier

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Boulder
    County
    Boulder
    State
    Colorado
    Longitude
    -105.223
    Latitude
    40.0156

    Nearby Similar for Lease

    • $18 SF/Yr
      5,982 SF

      Boulder Commercial Space For Lease

      5,982 SF suite available for lease or sale.
      1200 28th St, Boulder, CO 80303
      View Details
    • $28 SF/Yr
      3,956 SF

      Retail Space in Boulder Commons

      New retail spaces available in a master-planned community.
      2255 31st St, Boulder, CO 80301
      View Details
    • $15 SF/Yr
      5,189 SF

      Boulder Commercial Suites Available

      Office suites and individual offices for lease in Boulder.
      5600 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $30 SF/Yr
      40,000 SF

      Boulder Commercial Space For Lease

      Office, retail, restaurant, fitness, or medical space available for lease.
      2600 Pearl St, Boulder, CO 80302
      View Details
    • $10 SF/Yr
      18,120 SF

      Warehouse Flex Building with Lab

      Warehouse flex building with lab space available for lease or sale.
      4725 Nautilus Ct S, Boulder, CO 80301
      View Details
    • $35 SF/Yr
      577 SF

      West Downtown Boulder Retail Space

      High-visibility corner retail space in vibrant West Downtown Boulder.
      1909 9th St, Boulder, CO 80302
      View Details
    • $12 SF/Yr
      16,766 SF

      Boulder Commercial Space For Rent

      Commercial space for rent with modern finishes and ample parking.
      1790 30th St, Boulder, CO 80301
      View Details
    • $10 SF/Yr
      16,048 SF

      Boulder Commercial Office Space Available

      Medical and professional office spaces for lease in Boulder, CO.
      7490 Clubhouse Rd, Boulder, CO 80301
      View Details
    • $15 SF/Yr

      Prime Corner Retail Space Available

      Retail space in high-density residential area with incentive rate.
      3200 Bluff St, Boulder, CO 80301
      View Details
    • $22 SF/Yr
      29,623 SF

      Tech Office in Prime Location

      Premier Boulder office space with flexible options and mountain views.
      2590 Pearl St, Boulder, CO 80302
      View Details
    • $15 SF/Yr

      Boulder Office Suites For Lease

      Range of office spaces available for medical and professional use.
      75 Manhattan Dr, Boulder, CO 80303
      View Details
    • $22 SF/Yr
      5,796 SF

      Historic Boulder Depot Restaurant Opportunity

      Fully equipped restaurant space with high-end finishes and large patio.
      2366 Junction Pl, Boulder, CO 80301
      View Details

    FAQs

    What type of property is this?
    Office units - Office space available for lease in Boulder, Colorado.
    Where is this office units located?
    The property is located at 5603 Arapahoe Avenue Boulder, CO.
    What is the lease rate?
    The lease rate is $10 SF/Yr.
    What are key features of this property?
    This property features: Office space available for lease.; Located in Boulder, Colorado.
    (720) 299-3078
    We can help!
    Listing Contact
    Martin Knape
    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
    5603 Arapahoe Avenue, Boulder, CO, 80303
    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!