Add Listing
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    4421 Solano Ave Napa, CA 94558-1685
    Back to Search
    Property profile & analytics

    4421 Solano Ave, Napa, CA 94558-1685

    View on Map
    • Mobile home & RV parks
    • 3,140 SF
    • 17.55 lot acres
    Off-Market
    Last Sale Feb 10, 2026
    $1,000,000
    Property ID
    US09-0192324
    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.
    Value Estimations
    $1,000,000
    Show details
    Cap Rate Potential
    Location Intelligence

    Current Use by Public Records

    • Mobile home & RV parks

    Property Details for 4421 Solano Ave

    Year built
    1969
    Construction
    WOOD
    Lot size
    17.55 lot acres
    Zone code
    RI 4
    Property type
    Mobile home & RV parks
    APN
    035-480-011-000
    APU
    35480011000

    Value Estimations

    based on Realmo’s proprietary methodology

    • Alternative Use

      Use
      Estimation
      MEDICAL BUILDING
      $740,000

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

    Location Insight

    • Map
    • Local Demand
    City
    Napa
    County
    Napa
    State
    California
    Longitude
    -122.328
    Latitude
    38.3394
    CBSA code
    34900
    CBSA name
    NAPA, 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
    $135,701
    $3,511,764
    $1,446,791
    $4,958,555
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $590,000
      27.88 Acres

      2001 Salvador W Ave

      MOBILE HOME PARK, TRAILER PARK
      2001 Salvador W Ave, Napa, CA 94558-7206
      View Details
    • Value Estimation by Request
      32.13 Acres

      1040 Orch Ave

      MOBILE HOME PARK, TRAILER PARK
      1040 Orch Ave, Napa, CA 94558-1329
      View Details
    • Value Estimation
      $545,000
      16.53 Acres

      6004 Monticello Rd

      MOBILE HOME PARK, TRAILER PARK
      6004 Monticello Rd, Napa, CA 94558-9326
      View Details
    • Value Estimation by Request
      19.21 Acres

      4433 Solano Ave

      MOBILE HOME PARK, TRAILER PARK
      4433 Solano Ave, Napa, CA 94558-1674
      View Details
    • Value Estimation by Request
      5.37 Acres

      3130 Jefferson St

      MOBILE HOME PARK, TRAILER PARK
      3130 Jefferson St, Napa, CA 94558-4964
      View Details
    • Value Estimation by Request
      11.18 Acres

      1350 Pueblo Ave

      MOBILE HOME PARK, TRAILER PARK
      1350 Pueblo Ave, Napa, CA 94558-4865
      View Details

    Similar Nearby for Sale

    • $335,000
      1,053 SF

      Napa Residential Property for Sale

      Residential property in Napa, CA, available for purchase.
      40 Falcon Crest Cir, Napa, CA 94558
      View Details
    • New
      $1,300,000
      0.51 Acres

      Napa Quadruplex Investment Opportunity

      Rare Napa property with income potential and future development possibilities.
      1236 El Centro Ave, Napa, CA 94558
      View Details
    • $10,000,000
      12,700 SF

      Napa Valley Mixed-Use Opportunity

      4.2-acre property with commercial, agricultural, and residential potential.
      3106 Golden Gate Dr, Napa, CA 94558
      View Details
    • New
      $743,000
      1,410 SF

      Versatile Napa Commercial Opportunity

      Pristine 1,410 sq ft property in the heart of Napa.
      525 Lincoln Ave, Napa, CA 94558
      View Details
    • $2,950,000

      Napa Valley Acreage Opportunity

      Rare 1-acre Napa Valley parcel ready for your dream estate.
      1145 Ragatz Ln, Napa, CA 94558
      View Details

    Similar Nearby for Lease

    • Contact for pricing

      Napa Industrial Single Tenant Space

      Single tenant industrial space available for lease in Napa, CA.
      902 Enterprise Way, Napa, CA 94558
      View Details
    • Contact for pricing

      Napa Valley Industrial/Office/Showroom Building

      Versatile industrial, office, and showroom space in Napa Valley.
      1821 Monticello Rd, Napa, CA 94558
      View Details
    • Contact for pricing
      18,434 SF

      Napa Industrial Space For Lease

      Industrial space with office area, convenient highway access, close to wineries.
      2545 Napa Valley Corporate Dr, Napa, CA 94558
      View Details
    • Contact for pricing

      Mixed-Use Project Near Downtown Napa

      50,060 SF mixed-use property with convenient highway access.
      388 Devlin Rd, Napa, CA 94558
      View Details
    • Contact for pricing

      Napa Warehouse/Office Suite Sublease

      18,930 SF warehouse/office suite available for sublease.
      840 Latour Ct, Napa, CA 94558
      View Details
    • Contact for pricing

      Napa Office Space Available

      Spacious office with private offices, conference room, and natural light.
      851 Napa Valley Corporate Way, Napa, CA 94558
      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.
    4421 Solano Ave
    Napa, CA 94558-1685
    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

    Thank You for Inquiry
    4421 Solano Ave, Napa, CA, 94558
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!