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.
For sale
$2,695,000
9 Maple St, Cos Cob, CT 06807
4beds
2,745sqft
Residential, Single Family Residence
Built in 2025
4,791 Square Feet Lot
$2,651,900 Zestimate®
$982/sqft
$-- HOA
What's special
- 34 days
- 1,403
- 87
Zillow last checked:
Listing updated:
Listed by:
Julie Church 203-561-9373,
Houlihan Lawrence
Source: Greenwich MLS, Inc.,MLS#: 125766
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
| Date | Event | Price |
|---|---|---|
| 9/10/2026 | Listed for sale | $2,695,000+372.8%$982/sqft |
Source: | ||
| 4/7/2023 | Sold | $570,000-4.8%$208/sqft |
Source: | ||
| 2/28/2023 | Contingent | $599,000$218/sqft |
Source: | ||
| 2/21/2023 | Listed for sale | $599,000-11.3%$218/sqft |
Source: | ||
| 5/18/2022 | Listing removed | -- |
Source: | ||
| 11/4/2021 | Listed for sale | $675,000-3.4%$246/sqft |
Source: | ||
| 10/27/2019 | Listing removed | $699,000$255/sqft |
Source: William Raveis Real Estate #103920 Report a problem | ||
| 10/18/2019 | Listed for sale | $699,000$255/sqft |
Source: William Raveis Real Estate #103920 Report a problem | ||
Public tax history
| Year | Property taxes | Tax 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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Neighborhood: Cos Cob
Nearby schools
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.






