Skip main navigation
For sale
  • $1,795,000

    20 Ridge Rd, Cos Cob, CT 06807

    3beds
    1,839sqft
    : 
    Residential, Single Family Residence
    Built in 1928
    10,018.8 Square Feet Lot
    $-- Zestimate®
    $976/sqft
    $-- HOA

    What's special

    Extra-height ceilingsPrivate deckSun-filled primary suiteFinished lower levelTwo additional bedroomsQuiet corner lotOversized lot
    Built in 1928 on a quiet corner lot in one of Cos Cob's most desirable neighborhoods, this move-in ready Colonial has the character of its era with the updates today's buyers are looking for. The kitchen flows into the family room, where extra-height ceilings and a skylight pour in natural light. A fireplace anchors the living room, and a full bath on the main level adds everyday convenience. Upstairs, the sun-filled primary suite includes a steam shower, with two additional bedrooms and a full hall bath. The finished lower level complete with a half bath, which works as a home office, playroom or guest suite. Outside, a private deck and an oversized lot offer real potential. Proximity to town, to commuting options, to the water: it's all there.
    6 days
    |
    3,375
    |
    134
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Kaitlin Kelly 914-525-7197,

    Compass Connecticut, LLC

    Source: Greenwich MLS, Inc.,MLS#: 124971MLS Logo

    Tour with a local agent

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 4
      • Full bathrooms: 3
      • 1/2 bathrooms: 1
      Heating
      • Natural Gas, Hot Water
      Cooling
      • Central Air
      Features
      • Basement: Partial,Partially Finished
      • Number of fireplaces: 2
      Interior area
      • Total structure area: 1,839
      • Total interior livable area: 1,839 sqft

      Property

      Parking
      • Total spaces: 2
      • Parking features: Garage
      • Garage spaces: 2
      Lot
      • Size: 10,018.8 Square Feet
      Details
      • Parcel number: 082135/S
      • Zoning: R-7

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Colonial
      • Property subtype: Residential, Single Family Residence
      Materials
      • Vinyl Siding
      • Roof: Asphalt
      Condition
      • Year built: 1928
      • Major remodel year: 2020

      Utilities & green energy

      • Water: Public

      Community & HOA

      Location
      • Region: Cos Cob

      Financial & listing details

      • Price per square foot: $976/sqft
      • Tax assessed value: $721,560
      • Annual tax amount: $8,918
      • Date on market: 5/12/2026
      • Inclusions: Washer/Dryer, All Kitchen Applncs
      Get pre-qualifiedBe ready to make an offer.
      Connect with an agentGet info on this home, tour, and more.
      Calculate monthly paymentSee if you can afford this home.

        Estimated market value

        Not available

        Estimated sales range

        Not available

        $5,944/mo

        Price history

        DateEventPrice
        5/12/2026Listed for sale$1,795,000+38.6%$976/sqft
        Source: Greenwich MLS, Inc. #124971 Report a problem
        9/8/2021Sold$1,295,000$704/sqft
        Source: Greenwich MLS, Inc. #113900 Report a problem
        7/26/2021Contingent$1,295,000$704/sqft
        Source: Greenwich MLS, Inc. #113900 Report a problem
        7/15/2021Listed for sale$1,295,000+72.7%$704/sqft
        Source: Greenwich MLS, Inc. #113900 Report a problem
        9/9/2016Sold$750,000$408/sqft
        Source: Smart MLS #99148692 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$8,918 +3.5%$721,560
        2024$8,613 +2.6%$721,560
        2023$8,396 +0.9%$721,560
        2022$8,320 +17.9%$721,560 +23.1%
        2021$7,056 +0.2%$586,040
        2020$7,044 -1%$586,040
        2019$7,115 +2.3%$586,040
        2018$6,956 +6.9%$586,040 +8.3%
        2017$6,504 +1.6%$541,170
        2016$6,401 $541,170

        Find assessor info on the county website

        Monthly payment

        Est. payment

          Payment breakdown

          Explore the cost of this home by adjusting the details. Changes won't be saved.
          All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
          HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
          Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
          See how much you could borrow to make a competitive offer.

          Climate risks

          Neighborhood: Cos Cob

          Getting around

          79 / 100
          Very Walkable
          53 / 100
          Bikeable

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Cos Cob
          • Middle: Central

          Source: Greenwich MLS, Inc.. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

          A local agent can set up tours, give advice and negotiate with sellers.

          Browse local experts

          Similar homes

          Skip to the end of the carouselSkip to the beginning of the carousel