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For sale
  • $2,695,000

    9 Maple St, Cos Cob, CT 06807

    4beds
    2,745sqft
    : 
    $16,449/mo
    Get pre-qualified
    Residential, Single Family Residence
    Built in 2025
    4,791 Square Feet Lot
    $2,651,900 Zestimate®
    $982/sqft
    $-- HOA

    What's special

    Brand new construction in Cos Cob features four finished levels and an abundance of natural light. The main level offers an inviting open-concept kitchen, breakfast area, and family room, leading to a private deck and backyard, extending the living space outdoors. Glass walls along the staircase create a striking architectural detail while allowing light to flow through the home. The luxurious primary suite features a spa-like bath and custom walk-in closet with beautifully designed built-ins. Two additional bedrooms and a full bath complete the second level, with an optional connection for a stackable washer and dryer in the hall closet. The third floor offers a spacious bedroom, full bath, and versatile bonus space ideal for a playroom or office. The finished lower level provides a private office with custom cabinetry, second family room with wet bar, and full bath. Finished carport accommodates one car and would make a great party room. Set on a residential street, the property offers an ideal balance of privacy and convenience, with an easy route to North Mianus and Eastern schools, local shops, restaurants, parks, and the train station.
    34 days
    1,403
    87

    Zillow last checked:

    Listing updated:

    Listed by:

    Julie Church 203-561-9373,

    Houlihan Lawrence

    Source: Greenwich MLS, Inc.,MLS#: 125766MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 5
      • Full bathrooms: 4
      • 1/2 bathrooms: 1
      Heating
      • Natural Gas, Forced Air
      Cooling
      • Central Air
      Features
      • Kitchen Island, Eat-in Kitchen, Bookcases
      • Basement: Finished,Full
      • Has fireplace: No
      Interior area
      • Total structure area: 2,745
      • Total interior livable area: 2,745 sqft

      Property

      Features
      • Patio & porch: Deck
      Lot
      • Size: 4,791 Square Feet
      • Features: Level
      Details
      • Parcel number: 082345/S
      • Zoning: R-12
      • Other equipment: Generator

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Colonial
      • Property subtype: Residential, Single Family Residence
      Materials
      • Vinyl Siding
      • Roof: Asphalt
      Condition
      • Year built: 2025

      Utilities & green energy

      • Water: Public

      Community & HOA

      Community
      • Security: Smoke Detector(s)
      Location
      • Region: Cos Cob

      Financial & listing details

      • Price per square foot: $982/sqft
      • Tax assessed value: $401,240
      • Annual tax amount: $4,959
      • Date on market: 9/10/2026
      • Inclusions: Call LB

        Estimated market value

        $2,651,900

        $2.52M - $2.78M

        $10,527/mo

        Price history

        DateEventPrice
        9/10/2026Listed for sale$2,695,000+372.8%$982/sqft
        Source: Smart MLS #24204244 Report a problem
        4/7/2023Sold$570,000-4.8%$208/sqft
        Source: Smart MLS #170550784 Report a problem
        2/28/2023Contingent$599,000$218/sqft
        Source: Smart MLS #170550784 Report a problem
        2/21/2023Listed for sale$599,000-11.3%$218/sqft
        Source: Smart MLS #170550784 Report a problem
        5/18/2022Listing removed--
        Source: Greenwich MLS, Inc. #114626 Report a problem
        11/4/2021Listed for sale$675,000-3.4%$246/sqft
        Source: Smart MLS #170449887 Report a problem
        10/27/2019Listing removed$699,000$255/sqft
        Source: William Raveis Real Estate #103920 Report a problem
        10/18/2019Listed for sale$699,000$255/sqft
        Source: William Raveis Real Estate #103920 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$4,959 +3.5%$401,240
        2024$4,789 +2.6%$401,240
        2023$4,669 +0.9%$401,240
        2022$4,626 -9%$401,240 -5%
        2021$5,084 +0.2%$422,240
        2020$5,075 -1%$422,240
        2019$5,126 +2.3%$422,240
        2018$5,012 -1.2%$422,240
        2017$5,075 +12.8%$422,240 +12%
        2015$4,498 +2.6%$377,160
        2014$4,384 +2.8%$377,160
        2013$4,266 +6.3%$377,160
        2011$4,013 +22.4%$377,160 +4%
        2010$3,279 +3.4%$362,740
        2009$3,170 +3.5%$362,740
        2008$3,062 +3.6%$362,740
        2007$2,956 +3.8%$362,740
        2006$2,848 +10%$362,740 +69.5%
        2005$2,588 +8.7%$214,060
        2004$2,380 +3.4%$214,060
        2003$2,301 +1.8%$214,060 +77.1%
        2001$2,261 +5.7%$120,890
        2000$2,140 -4.6%$120,890
        1999$2,243 $120,890
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

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        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.
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        Climate risks

        Neighborhood: Cos Cob

        Getting around

        5 / 100
        Car-Dependent
        5 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: North Mianus
        • Middle: Eastern

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

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