Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    921 Marine St Boulder, CO 80302-6026

    • Specialty properties
    • 2,104 SF
    • 0.14 lot acres
    OFF-MARKET
    Value Estimations
    $235,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US13-0173336
    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

    • Specialty properties

    Property Details for 921 Marine St

    Year built
    1903
    Construction
    WOOD
    Lot size
    0.14 lot acres
    Property size
    2,104 SF
    Zone code
    9175
    Property type
    Specialty properties
    APN
    1461-36-1-00-082
    APU
    146136100082

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $235,000

    • Alternative Use

      Use
      Estimation
      CLUBS, LODGES, PROFESSIONAL ASSOCIATIONS
      $145,000
      Current use
      OFFICE BUILDING
      $270,000
      Change: +88% Conversion: Difficult
      AUTO REPAIR, GARAGE
      $255,000
      Change: +79% Conversion: Difficult
      RETAIL STORES
      $250,000
      Change: +75% Conversion: Difficult
      MEDICAL BUILDING
      $240,000
      Change: +67% Conversion: Difficult
      WAREHOUSE, STORAGE
      $170,000
      Change: +20% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    Boulder
    County
    Boulder
    State
    Colorado
    Longitude
    -105.283
    Latitude
    40.0122
    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
    $0.00
    $59,168
    $34,612
    $93,780
    -
    $883,100
    $516,600
    $1,399,700

    Comparable in this City

    • Value Estimation
      $350,000
      10,120 SF

      1506 Broadway

      CHARITABLE ORGANIZATION • 10,120 SF
      1506 Broadway, Boulder, CO 80302-6217
      View Details
    • Value Estimation
      $300,000
      9,756 SF

      1150 College Ave

      CHARITABLE ORGANIZATION • 9,756 SF
      1150 College Ave, Boulder, CO 80302-7218
      View Details
    • Value Estimation by Request
      10,142 SF

      2243 13Th St

      Churches & religious facilities • 10,142 SF
      2243 13Th St, Boulder, CO 80302
      View Details
    • Value Estimation
      $295,000
      16,238 SF

      2424 Spruce St

      CHARITABLE ORGANIZATION • 16,238 SF
      2424 Spruce St, Boulder, CO 80302-4617
      View Details
    • Value Estimation
      $245,000
      2,040 SF

      1142 11th St

      CHARITABLE ORGANIZATION • 2,040 SF
      1142 11th St, Boulder, CO 80302-6932
      View Details
    • Value Estimation
      $395,000
      12,784 SF

      1015 15th St

      CHARITABLE ORGANIZATION • 12,784 SF
      1015 15th St, Boulder, CO 80302-7313
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      10,142 SF

      Historic Boulder Church - Prime Location

      10,142 SF Church, 24 Parking Spaces
      2243 13Th St, Boulder, CO 80302
      View Details
    • $1,995,000

      Boulder Commercial Property For Sale

      Commercial property available for sale in Boulder, Colorado.
      636 Marine St, Boulder, CO 80302
      View Details
    • $3,950,000

      Historic Church Building in Boulder

      Historic church in downtown Boulder with auditorium and parking.
      2243 13Th St, Boulder, CO 80302
      View Details
    • $3,950,000

      Historic Church Building in Boulder

      Historic church in downtown Boulder with auditorium and parking.
      13Th St, Boulder, CO 80302
      View Details
    • $995,000
      814 SF

      Prime Boulder Retail Storefront

      Pearl Street gem, 814 sq ft, reduced price!
      820 Pearl St, Boulder, CO 80302
      View Details
    • $300,000

      Scenic Boulder Land Parcel

      2.55-acre parcel near Boulder with mountain views and trail access.
      375 Arroyo Chico, Boulder, CO 80302
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      4,045 SF

      Downtown Boulder Creative Office Space

      Historic building, prime location, flexible suites.
      1105 Spruce St, Boulder, CO 80302
      View Details
    • $15 SF/Yr
      3,824 SF

      Canyon Blvd Creative Office Space

      Modern Office Suite, Stunning Views, Boulder
      207 Canyon Blvd, Boulder, CO 80302
      View Details
    • $1.00 SF/Yr
      7,355 SF

      Prime Pearl Street Office Space

      Executive Suites, 4,171 sq ft Available
      1615 Pearl St, Boulder, CO 80302
      View Details
    • $24 SF/Yr
      7,758 SF

      Downtown Boulder Office/Retail Gem

      Classic Boulder building, lease or sale. Prime location, ample parking.
      1735-1737 15Th St, Boulder, CO 80302
      View Details
    • $26 SF/Yr
      76,800 SF

      WaterStreet Plaza: Office Space for Lease

      Prime Canyon Blvd Office Building, Abundant Parking
      2425-2595 Canyon Blvd, Boulder, CO 80302
      View Details
    • Contact for pricing
      22,390 SF

      Boulder Village Shopping Center

      Prime Boulder Retail Space Available
      2525 Arapahoe Ave, Boulder, CO 80302
      View Details
    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.
    921 Marine St
    Boulder, CO 80302-6026
    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

    Google sign-in failed. Please try again or use another login method.
    Create New Password
    • At least 8 characters
    • Contains both letters and numbers
    • Contains uppercase and lowercase letters
    • At most 32 characters
    • Password required
    • Password reset link has expired. Please request a new one.