Skip main navigation
Off market
  • $4,701,100

    273 Valley Rd, Cos Cob, CT 06807

    6beds
    6,500sqft
    SingleFamily
    Built in 2021
    0.35 Acres Lot
    $4,701,100 Zestimate®
    $723/sqft
    $7,830 Estimated rent

    Home value

    $4,701,100

    $4.00M - $5.50M

    $7,830/mo

    Zestimate® history
    Loading
    Loading...

    Owner options

    List your home for rent

    $7,830/mo

    Rent Zestimate®

    Find your next renter with Zillow Rental Manager. Plus, with online applications, you can quickly screen prospective tenants – for free.

    Learn more

    $7,830/mo

    Rent Zestimate®

    Refinance and save

    $26,495/mo

    Est. payment

    Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.

    See today's rates

    $26,495/mo

    Est. payment

    Explore your selling options

    Work with a Zillow partner agent

    Leverage their expertise and Zillow's premium Showcase listings to get your home seen by more buyers.

    Get started

    List with your own agent

    Get your home in front of millions of buyers by listing it on Zillow.

    Learn how to do it

    Sell it yourself

    Take full control of how buyers see your home on Zillow by listing For Sale by Owner (FSBO).

    List your home

    What's special

    Boating, swimming and fishing in the summer and hot chocolate and skating in the winter are just steps away. New construction transitional style home featuring an open floor plan, 6 bed, 8 bath, 2 half baths on over 200 ft of direct waterfront property on the coveted Mianus River. Plans call for 4 finished levels, in-ground pool, private dock and cantilevered decks with sunrise and sunset views over the water. Property also features a newly constructed lake house with a bedroom, studio, kitchenette and 2 full baths. Award winning Greenwich based team spearheading the design and build of this not to be missed home. Limited opportunity for the discerning buyer to be part of the decision making process and customize their dream home. Also listed as land.

    This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 6
    • Bathrooms: 10
    • Full bathrooms: 8
    • 1/2 bathrooms: 2
    Heating
    • Forced air
    Appliances
    • Included: Dishwasher
    Features
    • Attic: Full
    Interior area
    • Total interior livable area: 6,500 sqft

    Property

    Parking
    • Total spaces: 1
    • Parking features: Garage - Attached
    Features
    • Exterior features: Wood
    • On waterfront: Yes
    Lot
    • Size: 0.35 Acres
    Details
    • Parcel number: GREEM08AB1007S
    • Zoning: R-12

    Construction

    Type & style
    • Home type: SingleFamily
    Materials
    • Frame
    • Roof: Asphalt
    Condition
    • Year built: 2021

    Utilities & green energy

    • Water: Public

    Community & HOA

    Location
    • Region: Cos Cob

    Financial & listing details

    • Price per square foot: $723/sqft
    • Tax assessed value: $1,556,030
    • Annual tax amount: $19,231

    Price history

    DateEventPrice
    8/4/2021Pending sale$950,000-26.6%$146/sqft
    Source: Greenwich MLS, Inc. #106777 Report a problem
    6/9/2021Sold$1,295,000-62.9%$199/sqft
    Source: Public Record Report a problem
    3/6/2021Price change$3,495,000+152.3%$538/sqft
    Source: Greenwich MLS, Inc. #111922 Report a problem
    3/2/2021Price change$1,385,000-60.4%$213/sqft
    Source: Van Hoesen Realty Corp. #111922 Report a problem
    2/18/2021Listed for sale$3,495,000$538/sqft
    Source: Van Hoesen Realty Corp. #111922 Report a problem
    1/11/2021Listing removed--
    Source: Greenwich MLS, Inc. Report a problem
    1/4/2021Listed for sale$3,495,000+425.6%$538/sqft
    Source: Van Hoesen Realty Corp. #111922 Report a problem
    1/24/2020Sold$665,000-55.5%$102/sqft
    Source: Greenwich MLS, Inc. #106777 Report a problem
    3/1/2019Listing removed$1,495,000$230/sqft
    Source: Sotheby's International Realty - Greenwich Brokerage #104293 Report a problem
    1/2/2019Price change$1,495,000-11.8%$230/sqft
    Source: Sotheby's International Realty - Greenwich Brokerage #104293 Report a problem
    9/4/2018Listed for sale$1,695,000-15%$261/sqft
    Source: Sotheby's International Realty - Greenwich Brokerage #104293 Report a problem
    5/2/2018Listing removed$1,995,000$307/sqft
    Source: Sotheby's International Realty - Greenwich Brokerage #101313 Report a problem
    4/3/2018Listed for sale$1,995,000+132%$307/sqft
    Source: Sotheby's International Realty - Greenwich Brokerage #101312 Report a problem
    2/19/2016Sold$860,000+13.2%$132/sqft
    Source: Smart MLS #99118738 Report a problem
    5/9/2014Sold$760,000$117/sqft
    Source: Greenwich MLS, Inc. #86638 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$19,231 +3.5%$1,556,030
    2024$18,573 +2.6%$1,556,030
    2023$18,106 +138.1%$1,556,030 +135.9%
    2022$7,604 +7%$659,540 +11.7%
    2021$7,109 +0.2%$590,450
    2020$7,097 -0.5%$590,450 +0.5%
    2019$7,132 +4.4%$587,510 +2%
    2018$6,834 +16.2%$575,750 +17.7%
    2017$5,879 -10.9%$489,160 -12.1%
    2015$6,598 +2%$556,220
    2014$6,466 +2.8%$556,220
    2013$6,291 +2.8%$556,220
    2012$6,118 +3.4%$556,220
    2011$5,918 +5.8%$556,220 -10.1%
    2010$5,593 +3.4%$618,660
    2009$5,407 +3.6%$618,660
    2008$5,221 +3.6%$618,660
    2007$5,042 +3.8%$618,660
    2006$4,856 +11.3%$618,660 +71.5%
    2005$4,362 +8.7%$360,780
    2004$4,012 +3.5%$360,780
    2003$3,878 +2.2%$360,780 +77.7%
    2001$3,796 +5.6%$203,000
    2000$3,593 -4.6%$203,000
    1999$3,766 $203,000
    Find assessor info on the county website

    Neighborhood: Cos Cob

    Nearby schools

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

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

    Sell for more on Zillow
    Get a Zillow Showcase℠ listing at no additional cost and you could sell for .
    $4,701,100
    2% more
    +$94,022
    With Zillow Showcase(estimated)
    $4,795,122