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

    21 Main St Alpharetta, GA 30009-3631

    • Banks
    • 5,512 SF
    • 0.72 lot acres
    OFF-MARKET
    Last Sale
    Jun 29, 2023
    $3,925,399
    Value Estimations
    $2,910,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US22-1173314
    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

    • Beau Vinci Violins / Violin Shop
    • Digital Scientists / Software Company / Print Shop
    • Wells Fargo Bank / Bank / Atm
    • Wells Fargo ATM / Atm
    • Alpharetta Painting - Residential & Commercial / General Contractor

    Property Details for 21 Main St

    Year built
    1980
    Construction
    WOOD
    Lot size
    0.72 lot acres
    Property size
    5,512 SF
    Zone code
    C2
    Property type
    Banks
    APN
    22 498412680613
    APU
    22498412680613

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $3,215,000
      ML approach
      $3,190,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $1,996,000
      Market price range: $1.92M - $5.71M

    • Alternative Use

      Use
      Estimation
      FINANCIAL BUILDING
      $2,915,000
      Current use
      APARTMENT HOUSE (5+ UNITS)
      $3,825,000
      Change: +31% Conversion: Difficult
      RESTAURANT
      $2,960,000
      Change: +1% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    Alpharetta
    County
    Fulton
    State
    Georgia
    Longitude
    -84.2941
    Latitude
    34.076
    CBSA code
    12060
    CBSA name
    ATLANTA-SANDY SPRINGS-MARIETTA, GA 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
    $15,117
    $309,600
    $225,960
    $535,560
    -
    $774,000
    $564,900
    $1,338,900

    Comparable in this City

    • Value Estimation
      $6,880,000
      2,280 SF

      11790 Haynes Brg Rd

      FINANCIAL BUILDING • 2,280 SF
      11790 Haynes Brg Rd, Alpharetta, GA 30009-1927
      View Details
    • Value Estimation
      $755,000
      12,240 SF

      244 Main St

      FINANCIAL BUILDING • 12,240 SF
      244 Main St, Alpharetta, GA 30009-1963
      View Details
    • Value Estimation
      $350,000
      3,638 SF

      2600 Old Milton Pkwy

      FINANCIAL BUILDING • 3,638 SF
      2600 Old Milton Pkwy, Alpharetta, GA 30009-2145
      View Details
    • Value Estimation
      $1,315,000
      51,942 SF

      Haynes Brg Rd

      FINANCIAL BUILDING • 51,942 SF
      Haynes Brg Rd, Alpharetta, GA 30009
      View Details
    • Value Estimation
      $665,000
      10,986 SF

      11575 Haynes Brg Rd

      FINANCIAL BUILDING • 10,986 SF
      11575 Haynes Brg Rd, Alpharetta, GA 30009-4824
      View Details
    • Value Estimation
      $1,005,000
      15,997 SF

      2380 Old Milton Pkwy

      FINANCIAL BUILDING • 15,997 SF
      2380 Old Milton Pkwy, Alpharetta, GA 30009-2104
      View Details

    Similar Nearby for Sale

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      Alpharetta Ranch Condo with Upgrades

      Updated 3-bedroom condo near Downtown Alpharetta with community amenities.
      3102 Windrush Ln, Alpharetta, GA 30009
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      Alpharetta Specialty Property for Sale

      Specialty property available for purchase in Alpharetta, Georgia.
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    • $475,000
      1,485 SF

      Alpharetta Garden District Ranch Condo

      Low-maintenance living near Downtown Alpharetta with updated features and community amenities.
      3102 Windrush Ln, Alpharetta, GA 30009
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    • $2,100,000
      3,128 SF

      Alpharetta Office Building For Sale

      3,128 SF newly renovated office building in downtown Alpharetta.
      145 North Main St, Alpharetta, GA 30009
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    • $598,800
      0.20 Acres

      Alpharetta Duplex: Investment Opportunity

      Duplex in Alpharetta, GA with new roof and concrete siding.
      1120 Rappahannock Dr, Alpharetta, GA 30009
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    • New
      $399,000
      1,134 SF

      Downtown Alpharetta Office Condo

      Modern 1,134 SF office condo in downtown Alpharetta, GA.
      1100 Powers Pl, Alpharetta, GA 30009
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      2,600 SF

      Downtown Alpharetta Mixed-Use Property

      Retail and office spaces available in downtown Alpharetta.
      126 North Main St, Alpharetta, GA 30009
      View Details
    • Contact for pricing
      105,615 SF

      Stonewood Village Retail Spaces

      Alpharetta retail center, multiple spaces available.
      670 Main St, Alpharetta, GA 30009
      View Details
    • Contact for pricing
      4,627 SF

      Retail Space on Mansell Road

      Retail property with signalized access on Mansell Road.
      1605 Mansell Rd, Alpharetta, GA 30009
      View Details
    • $25 SF/Yr
      6,636 SF

      Alpharetta Office Space Available

      Downtown Alpharetta office, renovated 2023.
      290 Main St, Alpharetta, GA 30009
      View Details
    • Contact for pricing
      103,892 SF

      Available Warehouse and Office Space

      52,000 SF warehouse and office space available for lease.
      11820 Wills Rd, Alpharetta, GA 30009
      View Details
    • Contact for pricing
      2,238 SF

      Amenity-Rich Alpharetta Corporate Campus

      Class A office space in a mixed-use campus.
      2475 Northwinds Pkwy, Alpharetta, GA 30009
      View Details
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    Alpharetta, GA 30009-3631
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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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