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    Property profile & analytics

    143 Spain St Sonoma, CA 95476-5638

    • Retail space
    • 1,939 SF
    • 0.31 lot acres
    OFF-MARKET
    Value Estimations
    $515,000
    Show details
    Cap Rate Potential
    3.4%
    Retail space
    Location Intelligence
    Property ID
    US09-5182685
    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

    • Retail space

    Property Details for 143 Spain St

    Year built
    1845
    Construction
    TILT-UP CONCRETE
    Lot size
    0.31 lot acres
    Property size
    1,939 SF
    Property type
    Retail space
    APN
    018-202-083-000
    APU
    18202083000

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $515,000

    • CAP approach

      CAP Return
      Estimation
      6%
      $350,000
      6.5%
      $325,000
      7%
      $300,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $702,000
      Market price range: $181k - $703k

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

    Location Insight

    • Map
    • Local Demand
    City
    Sonoma
    County
    Sonoma
    State
    California
    Longitude
    -122.46
    Latitude
    38.2936
    CBSA code
    42220
    CBSA name
    SANTA ROSA-PETALUMA, CA 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
    $27,692
    $1,015,510
    $1,276,642
    $2,292,152
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $445,000
      4,160 SF

      750 Napa St

      STORE, RETAIL OUTLET • 4,160 SF
      750 Napa St, Sonoma, CA 95476-6413
      View Details
    • Value Estimation
      $490,000
      6,573 SF

      460 1st E St

      STORE, RETAIL OUTLET • 6,573 SF
      460 1st E St, Sonoma, CA 95476-6702
      View Details
    • Value Estimation
      $295,000
      598 SF

      29 Napa St, Unit C

      RETAIL STORES (PERSONAL SERVICES) • 598 SF
      29 Napa St, Sonoma, CA 95476-6708
      View Details
    • Value Estimation
      $390,000
      5,612 SF

      483 1st W St

      STORE, RETAIL OUTLET • 5,612 SF
      483 1st W St, Sonoma, CA 95476-6608
      View Details
    • Value Estimation
      $300,000
      818 SF

      450 1st St E Ste D

      RETAIL STORES (PERSONAL SERVICES) • 818 SF
      450 1st St E Ste D, Sonoma, CA 95476-6760
      View Details
    • Value Estimation
      $305,000
      2,352 SF

      527 Broadway

      RETAIL STORES (PERSONAL SERVICES) • 2,352 SF
      527 Broadway, Sonoma, CA 95476-6601
      View Details

    Similar Nearby for Sale

    • $2,850,000
      1,911 SF

      Downtown Sonoma Retail Building

      Retail building with three units, currently leased to Sojourn Cellars.
      141 E Napa St, Sonoma, CA 95476
      View Details
    • $1,290,000
      4,353 SF

      Sonoma Mixed-Use Investment Opportunity

      Three-story mixed-use building in Sonoma Centro with commercial and residential spaces.
      19230 Sonoma Hwy, Sonoma, CA 95476
      View Details
    • $3,183,624
      9,256 SF

      Retail Building Near Fairmont Hotel

      Retail building for sale, located on Highway 12.
      18060 Sonoma Hwy, Sonoma, CA 95476
      View Details
    • $428,175
      825 SF

      Broadway Commercial Condominium For Sale

      Light, bright commercial condominium with Broadway entrance, ideal for office/retail.
      1055 Broadway, Sonoma, CA 95476
      View Details
    • $5,300,000
      12,794 SF

      Historic Winery and Tasting Room

      Established winery with tasting room, vineyard, and expansion potential.
      18701 Gehricke Rd, Sonoma, CA 95476
      View Details
    • $199,000
      4,400 SF

      Sonoma Hwy Commercial Redevelopment

      4,400 SF Vacant Land, High Traffic
      17905 Sonoma Hwy, Sonoma, CA 95476
      View Details

    Similar Nearby for Lease

    • $3,450 /Mo
      1,570 SF

      Sonoma Retail Space For Lease

      Prime retail space in Sonoma with high visibility and foot traffic.
      19230 Hwy 12, Sonoma, CA 95476
      View Details
    • Contact for pricing
      11,310 SF

      Sonoma Industrial Warehouse For Lease

      11,310 SF Warehouse, 7.17 Acres
      24200 Arnold Dr, Sonoma, CA 95476
      View Details
    • $31 SF/Yr
      11,032 SF

      Sonoma Office Building For Sale

      Prime Sonoma location, versatile office space
      19080 Lomita Ave, Sonoma, CA 95476
      View Details
    • $3,200 /Mo
      15,008 SF

      Sonoma Warehouse Space Available

      15,008 square foot warehouse space for rent in Sonoma.
      20350 8Th St E, Sonoma, CA 95476
      View Details
    • $3 SF/Yr
      12,997 SF

      Sonoma Office Space For Rent

      Demised office space within walking distance to Sonoma Plaza.
      579 1St St, Sonoma, CA 95476
      View Details
    • $3,000 /Mo
      4,922 SF

      Sonoma Office with Live/Work Potential

      Well-maintained office building with live/work potential, great visibility, high traffic.
      17977 Hwy 12, Sonoma, CA 95476
      View Details
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    143 Spain St
    Sonoma, CA 95476-5638
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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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