Add Listing
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

    21890 Uunet Dr Ashburn, VA 20147-5856

    • Office properties & Spaces
    • 368,624 SF
    • 8.85 lot acres
    OFF-MARKET
    Last Sale
    Sep 03, 2020
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US87-3502815
    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

    • Aligned Data Center - Ashburn IAD-01 / Business To Business Service

    Property Details for 21890 Uunet Dr

    Year built
    2019
    Lot size
    8.85 lot acres
    Property size
    368,624 SF
    Zone code
    PDOP
    Property type
    Office properties & Spaces
    APN
    061-35-5894-000
    APU
    61355894000

    Value Estimations

    based on Realmo’s proprietary methodology

    • CAP approach

      CAP Return
      Estimation
      6%
      $76,305,000
      6.5%
      $70,435,000
      7%
      $65,405,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $88,373,000
      Market price range: $27.3M - $88.4M

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $114,675,000
      Current use
      WAREHOUSE, STORAGE
      $123,870,000
      Change: +8% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    Ashburn
    County
    Loudoun
    State
    Virginia
    Longitude
    -77.47
    Latitude
    39.0139
    CBSA code
    47900
    CBSA name
    WASHINGTON-ARLINGTON-ALEXANDRIA, DC-VA-MD-WV 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
    2024
    $4,162,484
    $22,117,400
    $368,726,160
    $390,843,560
    -
    $22,117,400
    $368,726,160
    $390,843,560

    Comparable in this City

    • Value Estimation by Request
      288,403 SF

      21744 Sir Timothy Dr

      OFFICE (GENERAL) • 288,403 SF
      21744 Sir Timothy Dr, Ashburn, VA 20147-6264
      View Details
    • Value Estimation
      $8,790,000
      61,744 SF

      20116 Ashbrook Pl

      OFFICE (GENERAL) • 61,744 SF
      20116 Ashbrook Pl, Ashburn, VA 20147-5086
      View Details
    • Value Estimation by Request
      455,793 SF

      21673 Beaumeade Cir

      OFFICE (GENERAL) • 455,793 SF
      21673 Beaumeade Cir, Ashburn, VA 20147-6046
      View Details
    • Value Estimation
      $35,500,000
      190,250 SF

      21320 Beaumeade Cir

      OFFICE (GENERAL) • 190,250 SF
      21320 Beaumeade Cir, Ashburn, VA 20147-6203
      View Details
    • Value Estimation
      $40,730,000
      180,000 SF

      43881 Devin Shafron Dr

      OFFICE (GENERAL) • 180,000 SF
      43881 Devin Shafron Dr, Ashburn, VA 20147-7345
      View Details
    • Value Estimation
      $3,935,000
      22,786 SF

      20370 Exchange St

      OFFICE (GENERAL) • 22,786 SF
      20370 Exchange St, Ashburn, VA 20147-5994
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      12.51 Acres

      Ashburn Medical Office Suite for Lease

      Prime Ashburn location, full-service office space.
      44110 Ashburn Shopping Plz, Ashburn, VA 20147
      View Details
    • $499,000

      Updated Medical Office Suite

      Prime One Loudoun location, ideal for medical or professional practice.
      44335 Premier Plz, Ashburn, VA 20147
      View Details
    • $799,000

      Medical Office Condo For Sale

      Street-level medical office condo in Goose Creek Village.
      21001 Sycolin Rd, Ashburn, VA 20147
      View Details
    • $1,011,126

      Commercial Land Near Dulles Airport

      Versatile commercial land suitable for various business ventures.
      20576 Ashburn Rd, Ashburn, VA 20147
      View Details
    • Contact for pricing
      10,000 SF

      Ashburn Retail Asset For Sale

      Retail asset in affluent D.C. submarket, long-term lease.
      20005 Riverside Commons Plz, Ashburn, VA 20147
      View Details
    • Contact for pricing
      10,734 SF

      Freestanding Early Education Center

      Fully built-out early education center in Ashburn, VA.
      42885 Orchard Oriole Dr, Ashburn, VA 20147
      View Details

    Similar Nearby for Lease

    • Contact for pricing

      Ashburn Village Shopping Plaza Office

      Office space available for lease in Ashburn Village.
      44110 Ashburn Vlg Shopping Plz, Ashburn, VA 20147
      View Details
    • Contact for pricing

      Office Space Available For Lease

      Office space for lease at 20110 S Ashbrook Pl.
      20110 S Ashbrook Pl, Ashburn, VA 20147
      View Details
    • Contact for pricing

      Flex Space in Ashburn Crossing

      Flex/R&D space in a hi-tech business corridor.
      21000-21265 Ashburn Crossing Dr, Ashburn, VA 20147
      View Details
    • Contact for pricing

      Contemporary Office Space Available

      Office space in area with highly-skilled workforce, modern facilities.
      20130 Lakeview Center Plz, Ashburn, VA 20147
      View Details
    • $3,500 /Mo
      1,742 SF

      New Corner Office in Ashburn

      Class A office space in OneLoudoun, ready for immediate occupancy.
      20755 Williamsport Pl, Ashburn, VA 20147
      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.
    21890 Uunet Dr
    Ashburn, VA 20147-5856
    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.
    Sign Up Successful!
    You now have access to more from Realmo!