Sign Up Successful!
You now have access to more from Realmo!
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

    100 Castle Ave Fairfield, CT 06825-5430

    • Residential income homes
    • 6,824 SF
    • 0.34 lot acres
    OFF-MARKET
    Last Sale
    Apr 22, 2022
    $1,650,000
    Value Estimations
    $1,545,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US15-0081143
    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

    • Residential income homes

    Property Details for 100 Castle Ave

    Year built
    2006
    Lot size
    0.34 lot acres
    Property size
    6,824 SF
    Zone code
    C
    Property type
    Residential income homes
    Property subtype
    Small apartment buildings
    APN
    FAIR M:79 B:201
    APU
    FAIRM79B201

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $1,680,000
      ML approach
      $1,755,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $1,140,000
      Market price range: $660k - $1.48M
      AI Estimate
      $1,047,000
      Market price range: $596k - $1.35M

    • Alternative Use

      Use
      Estimation
      APARTMENT HOUSE (5+ UNITS)
      $1,080,000
      Current use
      COMMERCIAL (GENERAL)
      $2,225,000
      Change: +106% Conversion: Moderate
      RESTAURANT
      $1,755,000
      Change: +62% Conversion: Difficult
      AUTO REPAIR, GARAGE
      $1,595,000
      Change: +47% Conversion: Difficult
      RETAIL STORES
      $1,270,000
      Change: +17% Conversion: Difficult
      OFFICE BUILDING
      $1,190,000
      Change: +10% Conversion: Moderate

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

    Location Insight

    • Map
    • Local Demand
    City
    Fairfield
    County
    Fairfield
    State
    Connecticut
    Longitude
    -73.2316
    Latitude
    41.1711
    CBSA code
    14860
    CBSA name
    BRIDGEPORT-STAMFORD-NORWALK, CT 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
    $25,517
    $201,460
    $726,110
    $927,570
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $325,000
      1,250 SF

      8 Bloomfield Dr

      APARTMENT HOUSE (UNDER 5 UNITS) • 1,250 SF
      8 Bloomfield Dr, Fairfield, CT 06825-3711
      View Details
    • Value Estimation
      $325,000
      3,995 SF

      81 Pierce St

      APARTMENT HOUSE (UNDER 5 UNITS) • 3,995 SF
      81 Pierce St, Fairfield, CT 06825-4828
      View Details
    • Value Estimation
      $330,000
      3,995 SF

      72 Pierce St

      APARTMENT HOUSE (UNDER 5 UNITS) • 3,995 SF
      72 Pierce St, Fairfield, CT 06825-4829
      View Details
    • Value Estimation
      $525,000
      3,248 SF

      178 Kings E Hwy

      APARTMENT HOUSE (UNDER 5 UNITS) • 3,248 SF
      178 Kings E Hwy, Fairfield, CT 06825-4824
      View Details
    • Value Estimation
      $1,020,000
      3,250 SF

      42 Poe Ct

      APARTMENT HOUSE (UNDER 5 UNITS) • 3,250 SF
      42 Poe Ct, Fairfield, CT 06825-4753
      View Details
    • Value Estimation
      $310,000
      3,472 SF

      41 Poe Ct

      APARTMENT HOUSE (UNDER 5 UNITS) • 3,472 SF
      41 Poe Ct, Fairfield, CT 06825-4752
      View Details

    Similar Nearby for Sale

    • $695,000

      Well-Kept Two-Family Home

      Spacious apartments, convenient location near shopping and transportation.
      299 Villa Ave, Fairfield, CT 06825
      View Details
    • $629,000

      Fairfield Multifamily Property For Sale

      Multifamily property available for purchase in Fairfield, Connecticut.
      108 Roseville St, Fairfield, CT 06825
      View Details
    • $564,900
      1,413 SF

      Two-Family Home with Renovation Potential

      Two-family home in need of TLC, great renovation potential.
      156 Halley Ave, Fairfield, CT 06825
      View Details
    • $875,000
      Pending

      Renovated Two-Family Home in Fairfield, CT

      Updated two-family home with finished third level in desirable Fairfield.
      349 Marlborough Ter, Fairfield, CT 06825
      View Details
    • $6,720,000
      43,824 SF

      Fairfield Industrial Redevelopment

      43,824 SF Flex Space, Prime Location
      430 Tunxis Hill Rd, Fairfield, CT 06825
      View Details
    • $1,695,000

      Fairfield Specialty Property For Sale

      Specialty property available for purchase in Fairfield, Connecticut.
      365 Toilsome Hill Rd, Fairfield, CT 06825
      View Details

    Similar Nearby for Lease

    • $1,950 /Mo

      Renovated Apartment with Utilities Included

      Move-in ready apartment with included utilities near universities and amenities.
      255 Fairfield Woods Rd, Fairfield, CT 06825
      View Details
    • $2,000 /Mo

      Tunxis Hill 2-Bedroom Apartment

      Third-floor apartment in Fairfield's Tunxis Hill area.
      76 Nichols Ave, Fairfield, CT 06825
      View Details
    • $2,200 /Mo

      Fairfield First Floor Apartment

      Four-room apartment with new kitchen, storage, and parking.
      174 Brentwood Ave, Fairfield, CT 06825
      View Details
    • $2,800 /Mo

      Updated Apartment with Sunroom Views

      Updated apartment featuring modern kitchen, sunroom, and included appliances.
      66 Hillandale Rd, Fairfield, CT 06825
      View Details
    • Contact for pricing
      1,400 SF

      Fairfield Office or Medical Space

      Lower level office or medical space in neighborhood center.
      2317-2399 Black Rock Tpke, Fairfield, CT 06825
      View Details
    • $26 SF/Yr
      5,000 SF

      Fairfield Office Space Available

      Office space for rent in Fairfield, Connecticut.
      501 Kings Hwy E, Fairfield, CT 06825
      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.
    100 Castle Ave
    Fairfield, CT 06825-5430
    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.
    Create New Password
    • At least 8 characters
    • Contains both letters and numbers
    • Contains uppercase and lowercase letters
    • At most 32 characters
    • Password required
    • Password reset link has expired. Please request a new one.