Bright newer five bedroom Center Hall Colonial near North Mianus school and minutes to Eastern Middle school , Riverside and Cos Cob shopping and RR stations. Third floor separate suite with bedroom, bath and office or sitting room. Hardwood floors , fenced in backyard. Great flow for day-to-day indoor and outdoor living and entertaining. Total Sq. footage includes 535 sq. ft. below grade. Finished lower level rec. room.
Sold for $2,285,000
$2,285,000
551 River Rd, Cos Cob, CT 06807
5beds
3,634sqft
Residential, Single Family Residence
Built in 2014
9,583.2 Square Feet Lot
$2,335,800 Zestimate®
$629/sqft
$7,504 Estimated rent
Home value
$2,335,800
$2.10M - $2.59M
$7,504/mo
Zestimate® history
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Zillow last checked: 7 hours ago
Listing updated: October 27, 2025 at 09:52am
Listed by:
Maria Arning 203-561-2509,
BHHS New England Properties
Bought with:
Agustina Sanchez, RES.0832948
Houlihan Lawrence
Source: Greenwich MLS, Inc.,MLS#: 121011
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Heating
- Forced Air, Propane
Cooling
- Central Air
Appliances
- Laundry: Laundry Room
Features
- Eat-in Kitchen, Entrance Foyer
- Windows: Double Pane Windows
- Basement: Partially Finished
- Number of fireplaces: 1
Interior area
- Total structure area: 3,634
- Total interior livable area: 3,634 sqft
Property
Parking
- Total spaces: 2
- Parking features: Garage Door Opener
- Garage spaces: 2
Features
- Patio & porch: Terrace
- Fencing: Fenced
Lot
- Size: 9,583 sqft
- Features: Level
Details
- Parcel number: 121534/S
- Zoning: R-12
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Residential, Single Family Residence
Materials
- Vinyl Siding
- Roof: Asphalt
Condition
- Year built: 2014
Utilities & green energy
- Water: Well
- Utilities for property: Cable Connected, Propane
Community & neighborhood
Security
- Security features: Security System, Smoke Detector(s)
Location
- Region: Cos Cob
Price history
| Date | Event | Price |
|---|---|---|
| 10/29/2025 | Listing removed | $12,000$3/sqft |
Source:  Berkshire Hathaway HomeServices New England Properties Report a problem | ||
| 10/27/2025 | Sold | $2,285,000-2.8%$629/sqft |
Source:  Greenwich MLS, Inc. #121011 Report a problem | ||
| 10/27/2025 | Listed for rent | $12,000$3/sqft |
Source: Berkshire Hathaway HomeServices New England Properties Report a problem | ||
| 10/27/2025 | Listing removed | $12,000$3/sqft |
Source: Smart MLS #24116504 Report a problem | ||
| 10/16/2025 | Pending sale | $2,350,000$647/sqft |
Source: Greenwich MLS, Inc. #121011 Report a problem | ||
| 9/11/2025 | Contingent | $2,350,000$647/sqft |
Source: Greenwich MLS, Inc. #121011 Report a problem | ||
| 8/2/2025 | Listed for rent | $12,000$3/sqft |
Source: Smart MLS #24116504 Report a problem | ||
| 7/3/2025 | Price change | $2,350,000-5.5%$647/sqft |
Source: Greenwich MLS, Inc. #121011 Report a problem | ||
| 4/28/2025 | Listed for sale | $2,487,000$684/sqft |
Source: Greenwich MLS, Inc. #121011 Report a problem | ||
| 10/14/2024 | Listing removed | $2,487,000$684/sqft |
Source: Berkshire Hathaway HomeServices New England Properties #121011 Report a problem | ||
| 7/12/2024 | Listed for sale | $2,487,000+30987.5%$684/sqft |
Source: Greenwich MLS, Inc. #121011 Report a problem | ||
| 12/12/2023 | Listing removed | -- |
Source: Berkshire Hathaway HomeServices New England Properties #118748 Report a problem | ||
| 8/22/2023 | Price change | $12,000-11.1%$3/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/12/2023 | Listed for rent | $13,500+8%$4/sqft |
Source: Zillow Rentals Report a problem | ||
| 8/6/2022 | Listing removed | -- |
Source: Berkshire Hathaway HomeServices New England Properties Report a problem | ||
| 7/1/2022 | Listed for rent | $12,500+42.9%$3/sqft |
Source: Berkshire Hathaway HomeServices New England Properties #116257 Report a problem | ||
| 4/5/2018 | Listing removed | $8,750$2/sqft |
Source: Greenwich #101463 Report a problem | ||
| 4/4/2018 | Sold | $8,000-99.5%$2/sqft |
Source: Agent Provided Report a problem | ||
| 1/11/2018 | Price change | $8,750-10.3%$2/sqft |
Source: Greenwich #101463 Report a problem | ||
| 12/14/2017 | Listed for rent | $9,750$3/sqft |
Source: Greenwich #101463 Report a problem | ||
| 2/9/2015 | Sold | $1,745,000-2.8%$480/sqft |
Source: Greenwich MLS, Inc. #91780 Report a problem | ||
| 10/31/2014 | Listing removed | $1,795,000$494/sqft |
Source: William Raveis Real Estate #91780 Report a problem | ||
| 10/24/2014 | Listed for sale | $1,795,000+2.6%$494/sqft |
Source: William Raveis Real Estate #91780 Report a problem | ||
| 6/25/2014 | Listing removed | $1,749,000$481/sqft |
Source: William Raveis Real Estate #90565 Report a problem | ||
| 6/7/2014 | Listed for sale | $1,749,000+253.3%$481/sqft |
Source: William Raveis Real Estate #90565 Report a problem | ||
| 6/21/2004 | Sold | $495,000+673.4%$136/sqft |
Source: Public Record Report a problem | ||
| 7/21/1995 | Sold | $64,000$18/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $15,045 +3.5% | $1,217,300 |
| 2024 | $14,530 +2.6% | $1,217,300 |
| 2023 | $14,165 +0.9% | $1,217,300 |
| 2022 | $14,035 -2.8% | $1,217,300 +1.5% |
| 2021 | $14,441 +0.2% | $1,199,450 |
| 2020 | $14,417 -1% | $1,199,450 |
| 2019 | $14,561 +2.3% | $1,199,450 |
| 2018 | $14,237 -1.2% | $1,199,450 |
| 2017 | $14,416 +26.1% | $1,199,450 +25.1% |
| 2015 | $11,433 +204.6% | $958,720 +196.9% |
| 2014 | $3,754 +2.8% | $322,910 |
| 2013 | $3,652 +6.3% | $322,910 |
| 2011 | $3,436 -1.5% | $322,910 -16.3% |
| 2010 | $3,488 +7.1% | $385,840 |
| 2008 | $3,256 +3.5% | $385,840 |
| 2007 | $3,145 +61.9% | $385,840 +271.4% |
| 2001 | $1,943 +5.7% | $103,880 |
| 2000 | $1,839 -4.6% | $103,880 |
| 1999 | $1,927 | $103,880 |
Find assessor info on the county website
Neighborhood: 06807
Nearby schools
GreatSchools rating
- 9/10North Mianus SchoolGrades: K-5Distance: 0.2 mi
- 9/10Eastern Middle SchoolGrades: 6-8Distance: 1.8 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 2.3 mi
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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- Connecticut
- Fairfield County
- Greenwich
- 06807
- 551 River Rd