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    5 Riv Rd Cos Cob, CT 06807-2717
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    Property profile & analytics

    5 Riv Rd, Cos Cob, CT 06807-2717

    View on Map
    • Office buildings
    • 8,560 SF
    • 0.48 lot acres
    Off-Market
    Last Sale Jul 12, 2023
    $3,500,000
    Property ID
    US15-0893970
    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
    $3,420,000
    Show details
    Cap Rate Potential
    Location Intelligence

    Current Use by Public Records

    • Sanko Kisen USA Corporation / Business Management Consultant

    Property Details for 5 Riv Rd

    Year built
    1982
    Construction
    STEEL FRAME
    Lot size
    0.48 lot acres
    Zone code
    WB
    Property type
    Office buildings
    APN
    GREE M:08 B:2444/S
    APU
    GREEM08B2444S

    Sales History

    Date Price Buyer Seller Deed Type Mortgage
    Jul 12, 2023 — Trinity Church River Road 5 LLC Quit Claim Deed · related —
    Aug 12, 2016 $3,500,000 River Road 5 LLC Sanko Kisen USA Corp Warranty Deed $2.7M · Trinity Church
    Nov 13, 2001 $23,000 Melnel INC Mianus River Assoc Grant Deed —
    Jun 25, 2001 $1,400,000 Jared Specthrie Cooper,john W 3rd Quit Claim Deed —
    Nov 30, 1993 $500,400 David Graham Davis,tylor Warranty Deed · related $364k · Eastern Mortgage Corp
    Jun 4, 1993 $1,035,000 Sanko Kisen Corp Mianus River Assoc Warranty Deed —
    Apr 2, 1992 $72,000 Mianus River Assoc Muir,frederick Warranty Deed —
    Nov 26, 1990 $35,000 Jack Castiglia Mianus River Assoc Grant Deed —
    Jul 17, 1990 $59,000 Mianus River Assoc Sider,william Grant Deed —
    Jun 27, 1990 $59,000 Mianus River Assoc Ferrier,dennis Grant Deed —
    Apr 12, 1990 $58,350 Richard Goldwater Mianus River Assoc Grant Deed —
    Jan 18, 1990 $65,000 Stephen Hudacek Mianus River Assoc Grant Deed —
    Nov 2, 1989 $113,000 Steven Kimelman Mianus River Assoc Grant Deed —
    May 22, 1989 $90,450 Jon Tozzi Mianus River Assoc Grant Deed —
    Mar 23, 1989 $94,000 Rodney Viccari Mianus River Assoc Grant Deed $60k · First Federal Bank Of Ct
    Mar 10, 1989 $63,600 Steven Beaumont Mianus River Assoc Grant Deed —
    Mar 9, 1989 $77,200 Howard Kaye Mianus River Assoc Grant Deed —
    Jan 9, 1989 $75,000 Carl Palumbo Mianus River Assoc Grant Deed —
    Dec 19, 1988 $100,500 Michael Benerofe Mianus River Assoc Grant Deed —
    Nov 14, 1988 $63,000 Thomas Hickey Mianus River Assoc Grant Deed $57k · Webster Bank
    Sep 26, 1988 $107,000 Zale Zoff Mianus River Assoc Grant Deed $85k · Webster Bank
    Sep 16, 1988 $101,000 Anthony Carlucci Mianus River Assoc Grant Deed $80k · Zuckerman Family Nomi
    Aug 22, 1988 $115,500 David Henderson Mianus River Assoc Grant Deed $104k · First Federal Bank Of Ct
    Jul 28, 1988 $87,750 Allen Baboian Mianus River Assoc Grant Deed $70k · First Federal Bank Of Ct
    Jul 26, 1988 $84,075 Kenneth Eber Mianus River Assoc Grant Deed $66k · First Federal Bank Of Ct
    Jul 22, 1988 $80,000 Marvin Glauber Mianus River Assoc Grant Deed —
    Jul 19, 1988 $51,775 Anthony Donofrio Mianus River Assoc Grant Deed —
    Jul 18, 1988 $107,825 Anthony Giardina Mianus River Assoc Grant Deed $80k · First Federal Bank Of Ct
    Jul 14, 1988 $135,450 Vito Denardo Mianus River Assoc Grant Deed $106k · First Federal Bank Of Ct
    Jul 13, 1988 $135,450 Allen Kalman Mianus River Assoc Grant Deed $50k · First Federal Bank Of Ct
    Jul 8, 1988 $103,950 Jack Castiglia Mianus River Assoc Grant Deed —
    Jul 6, 1988 $68,850 Yoel Kende Mianus River Assoc Grant Deed —
    Jun 30, 1988 $52,650 Dennis Ferrier Mianus River Assoc Grant Deed —
    Jun 28, 1988 $63,450 Barbara Kratovil Mianus Riv Assoc Grant Deed —
    Jun 24, 1988 $118,500 Anthony Battaglia Mianus River Assoc Grant Deed —
    Jun 20, 1988 $65,500 Ronald Bealer Mianus River Assoc Grant Deed —
    May 31, 1988 $90,450 Michael Abruzese Mianus River Assoc Grant Deed $46k · Union Trust Co
    May 25, 1988 $52,500 Gino Iebba Mianus River Assoc Grant Deed $30k · Union Trust Co
    May 11, 1988 $68,650 Janice Griyns Marianus Riv Assoc Grant Deed $50k · Union Trust Co
    May 6, 1988 $111,150 Charles Ferguson Mianus Riv Aooc Grant Deed $88k · Union Trust Co
    May 2, 1988 $80,500 Henry Muir Mianus River Assoc Grant Deed —
    Apr 29, 1988 $58,950 Wm Sider Mianus Riv Assoc Grant Deed —
    Apr 26, 1988 $50,800 Salvatore Sciortino JR Mianus River Assoc Grant Deed —
    Apr 25, 1988 $83,250 Anthony Fraulo Mianus River Assoc Grant Deed $55k · Union Trust Co
    Feb 29, 1988 $135,450 Barry Mactaggart Mianus River Assoc Grant Deed —
    Dec 16, 1987 — Mianus River Assoc — Deed Of Trust · related $500k · Greenwich Fed'l S&l Assn

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $3,305,000
      ML approach
      $3,370,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $2,204,000
      Market price range: $855k - $2.20M
      AI Estimate
      $2,055,000
      Market price range: $560k - $2.06M

    • Alternative Use

      Use
      Estimation
      RESTAURANT
      $2,200,000

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

    Location Insight

    • Map
    • Local Demand
    City
    Cos Cob
    County
    Fairfield
    State
    Connecticut
    Longitude
    -73.5952
    Latitude
    41.0345
    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
    $39,575
    $1,194,200
    $2,206,890
    $3,401,090
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $3,650,000
      14,674 SF

      35 Riv Rd

      OFFICE BUILDING
      35 Riv Rd, Cos Cob, CT 06807-2759
      View Details
    • Value Estimation
      $1,365,000
      5,489 SF

      119 Putnam Ave

      OFFICE BUILDING
      119 Putnam Ave, Cos Cob, CT 06807-2604
      View Details
    • Value Estimation
      $3,405,000
      7,897 SF

      99 Riv Rd

      OFFICE BUILDING
      99 Riv Rd, Cos Cob, CT 06807-2598
      View Details
    • Value Estimation by Request
      1,950 SF

      133 Riv Rd

      OFFICE BUILDING
      133 Riv Rd, Cos Cob, CT 06807-2539
      View Details
    • Value Estimation
      $540,000
      2,175 SF

      108 Riv Rd

      OFFICE BUILDING
      108 Riv Rd, Cos Cob, CT 06807-2517
      View Details
    • Value Estimation
      $2,785,000
      11,189 SF

      3 Riv Rd

      OFFICE BUILDING
      3 Riv Rd, Cos Cob, CT 06807-2717
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      5,054 SF

      Cos Cob Office Space Available

      5,054 SF office space with convenient access.
      31 River Rd, Cos Cob, CT 06807
      View Details
    • $3,900 /Mo

      Renovated Apartment Near Cos Cob

      Modern, renovated apartment with bonus room near shops and transit.
      274 Valley Rd, Cos Cob, CT 06807
      View Details
    • $5,750 /Mo

      Spacious 3-Bed Unit with Garage

      Large unit with garage, shared patio, and included utilities.
      530 River Rd, Cos Cob, CT 06807
      View Details
    • Contact for pricing
      988 SF

      Retail Space on Putnam Avenue

      Retail space available on highly-traveled Putnam Avenue.
      393-407 E Putnam Ave, Greenwich, CT 06807
      View Details
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    Cos Cob, CT 06807-2717
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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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