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    Property profile & analytics

    309 Gilbert St Castle Rock, CO 80104-2215

    • Office Properties & Spaces
    • 967 SF
    • 5.50 lot acres
    OFF-MARKET
    Value Estimation
    $695,000
    Last Sale
    Apr 27, 2022
    $826,200
    Location Intelligence
    Property ID
    US13-0648200
    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

    • SRM Concrete / Ready Mix Concrete Supplier / Concrete Product Supplier

    Property Details for 309 Gilbert St

    Year built
    1971
    Construction
    MASONRY/CONCRETE MASONRY UNITS (CMUS)
    Lot size
    5.50 lot acres
    Property size
    967 SF
    Property type
    Office Properties & Spaces
    APN
    R0475892
    APU
    R0475892

    Value Estimation

    by Realmo proprietary methodology Last update: July 3, 2025

    • AI approach

      CAP return
      Estimation
      Estimation
      $665,000

    • CAP approach

      CAP return
      Estimation
      6%
      $845,000
      6.5%
      $790,000
      7%
      $825,000

    • Comparable approach

      Method
      Estimation
      Relative Method
      $735,000
      Geo Method
      $785,000

    • Alternative Use

      Use
      Estimation
      Distribution
      $920,000
      Retail
      $840,000
      Mixed-Use
      $810,000
      Hospitality
      $935,000
      Educational
      $855,000
      Residential Income
      $905,000
      Energy
      $690,000
      Income-Based Land
      $835,000
      Food Service
      $915,000

    Location Insight

    • Map
    • Local Demand
    City
    Castle Rock
    County
    Douglas
    State
    Colorado
    Longitude
    -104.852
    Latitude
    39.3663
    CBSA code
    19740
    CBSA name
    DENVER-AURORA, 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
    $23,499
    $280,740
    $53,790
    $334,530
    -
    $1,006,236
    $192,792
    $1,199,028

    Comparable in this City

    • Value Estimation by Request
      1,000 SF

      1010 South St

      Flex space • 1,000 SF
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      34,705 SF

      100 Wilcox St

      OFFICE (GENERAL) • 34,705 SF
      100 Wilcox St, Castle Rock, CO 80104-1907
      View Details
    • Value Estimation by Request
      4,200 SF

      900 Wilcox St

      OFFICE (GENERAL) • 4,200 SF
      900 Wilcox St, Castle Rock, CO 80104-1743
      View Details
    • Value Estimation by Request
      25,902 SF

      695 Jerry St

      Office Properties & Spaces • 25,902 SF
      695 Jerry St, Castle Rock, CO 80104
      View Details
    • Value Estimation by Request
      1,310 SF

      103 4th St Ste, Unit 320

      OFFICE (GENERAL) • 1,310 SF
      103 4th St Ste, Castle Rock, CO 80104-2449
      View Details
    • Value Estimation
      $1,050,000
      1,790 SF

      505 Jerry St

      OFFICE (GENERAL) • 1,790 SF
      505 Jerry St, Castle Rock, CO 80104-1702
      View Details

    Similar Nearby for Sale

    • Contact for pricing
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      1,000 SF Flex Space, Ideal Small Business
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      1,000 SF Flex Space, Ideal for Business
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      Castle Rock Flex Space Investment

      Pre-leased industrial unit; high cap rate.
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      Castle Rock Flex Space For Sale

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    Similar Nearby for Lease

    • $23 SF/Yr
      20,880 SF

      Elk Crossing Office Space Available

      Modern Douglas County office space, 1,542 sq ft.
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    • Contact for pricing
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      Castle Rock Mixed-Use Opportunity

      Modern Retail & Office Space in Downtown Castle Rock
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    • $25 SF/Yr
      200 SF

      Professional Office Space Available

      Upstairs office space with natural light and shared amenities.
      505-517 N Wilcox St, Castle Rock, CO 80104
      View Details
    • Contact for pricing
      936 SF

      Castle Rock Office Space Available

      Office space available for rent in Castle Rock, Colorado.
      201-212 Wilcox St, Castle Rock, CO 80104
      View Details
    • $25 SF/Yr
      20,307 SF

      Class A Office Space, Castle Rock

      Premier office/medical suites available
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    • $30 SF/Yr
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      Downtown Office Space For Rent

      Office space with key card access, showers, and EV charging.
      202 6Th St, Castle Rock, CO 80104
      View Details
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    309 Gilbert St
    Castle Rock, CO 80104-2215
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    Realmo Value Estimation

    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.

    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.

    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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