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

    621 Main St Rapid City, SD 57701-2735

    • Retail space
    • 3,383 SF
    • 0.08 lot acres
    OFF-MARKET
    Value Estimations
    $265,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US79-0457087
    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

    • Art House Black Hills / Art Gallery / Gift Shop
    • Image Up Creative Services / Photo Restoration Service

    Property Details for 621 Main St

    Year built
    1927
    Lot size
    0.08 lot acres
    Property size
    3,383 SF
    Property type
    Retail space
    APN
    37-01-105-007
    APU
    3701105007

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $285,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $243,000
      Market price range: $119k - $403k

    • Alternative Use

      Use
      Estimation
      RETAIL STORES
      $270,000
      Current use
      OFFICE BUILDING
      $380,000
      Change: +41% Conversion: Easy
      AUTO REPAIR, GARAGE
      $255,000
      Change: -5% Conversion: Difficult
      WAREHOUSE, STORAGE
      $220,000
      Change: -20% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    Rapid City
    County
    Pennington
    State
    South Dakota
    Longitude
    -103.228
    Latitude
    44.081
    CBSA code
    39660
    CBSA name
    RAPID CITY, SD 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
    $5,095
    $70,000
    $298,700
    $368,700
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $315,000
      5,520 SF

      508 6th St

      RETAIL STORES (PERSONAL SERVICES) • 5,520 SF
      508 6th St, Rapid City, SD 57701-5011
      View Details
    • Value Estimation
      $280,000
      3,290 SF

      1024 Farlow Ave

      RETAIL STORES (PERSONAL SERVICES) • 3,290 SF
      1024 Farlow Ave, Rapid City, SD 57701-0839
      View Details
    • Value Estimation
      $335,000
      6,000 SF

      2005 Mt Rushmore Rd

      RETAIL STORES (PERSONAL SERVICES) • 6,000 SF
      2005 Mt Rushmore Rd, Rapid City, SD 57701-4656
      View Details
    • Value Estimation
      $305,000
      6,727 SF

      606 Main St

      RETAIL STORES (PERSONAL SERVICES) • 6,727 SF
      606 Main St, Rapid City, SD 57701-2736
      View Details
    • Value Estimation
      $335,000
      5,462 SF

      616 Main St

      RETAIL STORES (PERSONAL SERVICES) • 5,462 SF
      616 Main St, Rapid City, SD 57701-2736
      View Details
    • Value Estimation
      $315,000
      5,943 SF

      606 Main St

      RETAIL STORES (PERSONAL SERVICES) • 5,943 SF
      606 Main St, Rapid City, SD 57701-2736
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      1,028 SF

      Retail/Office Space in Rapid City

      High-visibility retail or office space in Rapid City, South Dakota.
      1804 Cambell St, Rapid City, SD 57701
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    • $1,350,000
      19,988 SF

      Turn-Key Self-Storage Investment Opportunity

      Well-maintained self-storage facility with high visibility and modern amenities.
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      Rapid City Bar & Liquor License

      Thriving Bar, Liquor License Included
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      Rapid City Restaurant - Turnkey Opportunity

      Fully equipped restaurant, 6,497 sq ft, prime location.
      620 Disk Dr, Rapid City, SD 57701
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    • $387,336
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      Rapid City Commercial Land Opportunity

      2.22 Acres, General Commercial Zoning
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      Rapid City Commercial Land

      1.1-Acre Development Opportunity
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    Similar Nearby for Lease

    • $16 SF/Yr
      1,662 SF

      Rapid City Retail/Office Space

      Endcap suite suitable for retail, office, or health services.
      811 Disk Dr, Rapid City, SD 57701
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    • $7 SF/Yr
      12,000 SF

      Haines Station Retail Space

      12,000 SF Retail Showroom, Rapid City
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      View Details
    • $24 SF/Yr
      12,480 SF

      Block 5 Retail Spaces Available

      Rapid City retail spaces, prime location.
      525 St Joseph St, Rapid City, SD 57701
      View Details
    • $24 SF/Yr
      1,655 SF

      Downtown Mixed-Use Development Space

      Retail and hospitality spaces in downtown entertainment district.
      612 6Th St, Rapid City, SD 57701
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    • $1.00 SF/Yr
      6,000 SF

      Prime Rapid City Lease Opportunity

      High-traffic location suitable for retail, restaurant, or office.
      1002 W Main St, Rapid City, SD 57701
      View Details
    • $1.00 SF/Yr
      20,028 SF

      Freestanding Commercial Building on Haines Avenue

      Freestanding commercial building on a primary retail corridor.
      2130 Haines Ave, Rapid City, SD 57701
      View Details
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    621 Main St
    Rapid City, SD 57701-2735
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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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