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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    3400 Arapahoe Ave Boulder, CO 80303-1023

    • Medical offices
    • 2,290 SF
    • 0.30 lot acres
    OFF-MARKET
    Value Estimations
    $425,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US13-2783584
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Dr. Coleman R. Eich, DDS / Dentist
    • Dr. Darren L. Rennaker / Dentist
    • Morgan’s Mobile Automotive LLC / Auto Repair Shop
    • Dr. Lisa A. Sheldon, DDS / Dentist
    • Dr. Jeffrey Bernardy / Dentist

    Property Details for 3400 Arapahoe Ave

    Year built
    1963
    Construction
    CONCRETE BLOCKS
    Lot size
    0.30 lot acres
    Property size
    2,290 SF
    Zone code
    2137
    Property type
    Medical offices
    Property subtype
    Medical centers
    APN
    1463-32-1-00-004
    APU
    146332100004

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $395,000

    • CAP approach

      CAP Return
      Estimation
      6%
      $680,000
      6.5%
      $625,000
      7%
      $580,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $293,000
      Market price range: $107k - $403k

    • Alternative Use

      Use
      Estimation
      MEDICAL BUILDING
      $260,000
      Current use
      COMMERCIAL (GENERAL)
      $610,000
      Change: +135% Conversion: Easy
      AUTO REPAIR, GARAGE
      $280,000
      Change: +7% Conversion: Difficult
      RETAIL STORES
      $275,000
      Change: +5% Conversion: Difficult
      WAREHOUSE, STORAGE
      $255,000
      Change: -2% Conversion: Difficult

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Boulder
    County
    Boulder
    State
    Colorado
    Longitude
    -105.249
    Latitude
    40.0143
    CBSA code
    14500
    CBSA name
    BOULDER, CO METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2023
    $29,154
    $314,433
    $31,527
    $345,960
    -
    $1,127,000
    $113,000
    $1,240,000

    Comparable in this City

    • Value Estimation
      $455,000
      7,028 SF

      5290 Manhattan Cir

      MEDICAL BUILDING • 7,028 SF
      5290 Manhattan Cir, Boulder, CO 80303-4258
      View Details
    • Value Estimation
      $400,000
      5,575 SF

      5585 Arapahoe Ave

      MEDICAL BUILDING • 5,575 SF
      5585 Arapahoe Ave, Boulder, CO 80303-1334
      View Details
    • Value Estimation
      $1,290,000
      3,384 SF

      5250 Manhattan Cir

      MEDICAL BUILDING • 3,384 SF
      5250 Manhattan Cir, Boulder, CO 80303-4258
      View Details
    • Value Estimation
      $795,000
      41,904 SF

      570 Mohawk Dr

      MEDICAL BUILDING • 41,904 SF
      570 Mohawk Dr, Boulder, CO 80303
      View Details
    • Value Estimation
      $4,155,000
      7,058 SF

      1440 28th St

      MEDICAL BUILDING • 7,058 SF
      1440 28th St, Boulder, CO 80303-1030
      View Details
    • Value Estimation
      $570,000
      39,040 SF

      4770 Baseline Rd

      OFFICE BUILDING • 39,040 SF
      4770 Baseline Rd, Boulder, CO 80303-2666
      View Details

    Similar Nearby for Sale

    • $9,900,000
      Pending

      Mid-Century Medical/Multifamily Conversion Opportunity

      Three-story building suitable for medical, professional office, or multifamily conversion.
      2995 Baseline Rd, Boulder, CO 80303
      View Details
    • $515,000
      1,082 SF

      Retail Condo in Boulder, Colorado

      Retail condo operating as a dispensary, leased through 2026.
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    • $3,700,000
      11,400 SF

      Boulder Executive Office Building

      11,400 SF Office, 38 Parking Spaces
      3004 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $3,841,000
      0.29 Acres

      Boulder Office Investment Opportunity

      East Boulder office building near Flatirons Golf Course with high occupancy.
      5600 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $3,841,000
      10,484 SF

      Boulder Office Building Investment

      High-Occupancy, East Boulder Office Complex
      5600 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $415,000
      1,224 SF

      Boulder Commercial Condo Unit For Sale

      1,224 SF commercial condo with office, retail, and fitness potential.
      5420 Arapahoe Ave, Boulder, CO 80303
      View Details

    Similar Nearby for Lease

    • $15 SF/Yr
      3,006 SF

      Boulder Flex Space: 3,006 SF

      Versatile Boulder office/retail space.
      5345 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $12 SF/Yr
      15,228 SF

      Baseline Road Office Building

      Boulder County Office Suites Available
      2995 Baseline Rd, Boulder, CO 80303
      View Details
    • $19 SF/Yr
      4,846 SF

      Boulder Office Suites - 777 29th St

      Prime Boulder Office Space, Multiple Suites Available
      777 29Th St, Boulder, CO 80303
      View Details
    • $10 SF/Yr
      4,873 SF

      South Boulder Office Suites for Lease

      Prime Boulder location, flexible office spaces available.
      2935 Baseline Rd, Boulder, CO 80303
      View Details
    • $25 SF/Yr
      1,730 SF

      Arapahoe Ave Medical Office Sublease

      Boulder County Office Space - Sublease Available
      4410 Arapahoe Ave, Boulder, CO 80303
      View Details
    • $28 SF/Yr
      46,170 SF

      Park Place Office Building, Boulder

      Central Boulder medical/office space.
      3100 Arapahoe Ave, Boulder, CO 80303
      View Details

    Property Visit Statistics

    • Visits by month
      305
    • Visitors by month
      359
    • Avg Time on site
      56 min
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    Boulder, CO 80303-1023
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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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