551 River Rd

Cos Cob, CT 06870

$2,285,000
Last Sold Price
5
Beds
3,634 Sq. Ft.
$629 / Sq. Ft.
3,634
Sq. Ft.
$629
per Sq. Ft.
Closed 10/27/25
Closed 10/27/25
Exterior
Exterior Front Door
Entry Way
Living Room
Dining Room
Kitchen
Breakfast/Family Room with Fireplace
Laundry Room
Staircase
20-web-or-mls-551-river-rd
Primary Bedroom
Primary Bathroom
Primary Bedroom Closet
Bedroom
Bedroom
Bedroom
Second Floor Full Bathroom
Third Floor Bedroom
Office
Lower Level
Fenced In Back Yard
4-551 River Rd, Cos Cob - Basement
1-551 River Rd, Cos Cob - First Floor
2-551 River Rd, Cos Cob - Second Floor
3-551 River Rd, Cos Cob - Third Floor

Description

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.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.
  1. Listed by Maria Arning • BHHS New England Properties
    P: (203)-869-0500 C: (203)-561-2509 marning@bhhsne.com

Property Details for 551 River Road

Section
Cos Cob
Design
Colonial
Basement Type
Partially Finished
Garage #
2.00
LISTING UPDATED: 10/27/2025 12:52 PM

Property Details for 551 River Road

StatusClosed
MLS #121011
Days on Market266
Taxes$15,045 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family
Year Built2014
Lot Size0.22 AC / 9,583 SF
CountyFairfield County

Location

Listing Courtesy of BHHS New England Properties, Maria Arning

Sold By Houlihan Lawrence, Agustina Sanchez

Add your commute

Building Information for 551 River Road

Stories-Year Built2014Building Size-Lot Size0.22 AC / 9,583 SF

Payment Calculator

$12,390 per month

30 year fixed, 6.15% Interest

Principal and Interest

$11,137

Property Taxes

$1,254

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 551 River Road

Summary
Location and General Information
  • Area: 4 - Cos Cob
  • Elementary School: North Mianus
  • Middle School: Eastern
  • Directions: Palmer Hill Road; at light, turn onto River Rd. across NM school, bear left at fork. 1st house on right across Sweet Briar Lane.
  • City: Cos Cob
  • MLS Area Major: 4 - Cos Cob
  • Longitude: -73.579041
  • Latitude: 41.06
  • Postal Code: 06807
  • County: Fairfield
  • State Or Province: CT
HOA and Fees
  • Parcel Number: 12-1534/S
  • Association Chg/Yr: $0
  • Taxes: $15,045
Interior and Exterior Features
Interior Features
  • Bathrooms Total Integer: 4
  • Baths Full: 3
  • Baths Half: 1
  • Beds Total: 5
  • Cooling: Yes
  • Heating: Yes
  • Entry Hall Level/FP: 1st: 1
  • Living Room Level/FP: 1st: 1
  • Dining Room Level/FP: 1st: 1
  • Family Room Level/FP: 1st: 1
  • Family Room Level/FP: FP: 1
  • Powder Room Level/FP: 1st: 1
  • Kitchen Level/FP: 1st: 1
  • Primary Bdrm Level/FP: 2nd: 1
  • Primary Bath Level/FP: 2nd: 1
  • Dbl Bdrms Level/FP: 2nd: 3
  • Dbl Bdrms Level/FP: 3rd: 1
  • Bath Level/FP: 2nd: 1
  • Bath Level/FP: 3rd: 1
  • Laundry Level/FP: 1st: 1
  • Other Room Level/FP: 3rd: 1
  • Other Room 2 Level/FP: LL: 1
  • Attic: Partial: Yes
  • Dining Room Comments: Formal: Yes
  • Entry Hall Ceilings: Extra Height: Yes
  • Entry Hall Comments: Foyer: Yes
  • Kitchen Comments: Eat-In Kitchen: Yes
  • Kitchen Comments: Gourmet: Yes
  • Laundry Comments: Separate Room: Yes
  • Living Room Comments: French Doors: Yes
  • Other Room Comments: Office Space: Yes
  • Other Room Comments 2: Playroom: Yes
  • Cooling System: Central AC: Yes
  • Heat System: Forced Air: Yes
  • Primary Bdrm Comments: Walk-in Closet(s): Yes
  • Cooling System: Central Air
Exterior Features
  • Exterior: Vinyl Siding: Yes
  • Exterior: Vinyl Siding
  • Roof: Asphalt
Property
Lot Information
  • Location Property Info: SPOLP: $.92
  • Location Property Info: List PriceSqFt: $646.67
  • Location Property Info: Owner: McCrossen, Donald & Kate
  • Location Property Info: Zoning: R-12
  • Location Property Info: # FPs: 1.0
  • Lot Description: Fenced,Level
  • Lot Size Acres: 0.22
  • Lot Size Area: 0.22
  • Lot Size Square Feet: 9583.2
  • Lot Size Units: Acres
  • Lot Description: Fenced: Yes
  • Lot Description: Level: Yes
Property and Assessments
  • General Property Info: Acres -: 0.22
  • General Property Info: Elementary School: North Mianus
  • General Property Info: Middle School: Eastern
  • General Property Info: Design Plan: Center Hall
  • General Property Info: SqFt Source: Taxcard
  • Assessment: $1,217,300
  • Zoning: R-12
  • Sanitation Source: Town Sewer
  • SqFt Source: Taxcard
  • Features: Auto Garage Door: Yes
  • Features: Cable TV: Yes
  • Features: Double Pane Windows: Yes
  • Features: Fenced Yard: Yes
  • Features: Security System: Yes
  • Features: Smoke Alarm: Yes
  • Features: Sprinkler System: Yes
  • Features: Terrace: Yes
  • Included: All Kitchen Applncs: Yes
  • Included: WasherDryer: Yes
Utilities
  • Gas Source: Propane: Yes
  • Heat Fuel: Propane: Yes
  • Hot Water: Electric: Yes
  • Heat System: Forced Air, Propane
  • Water Source: Well
Multi Family
Building Details
  • Public Remarks: 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.
  • Parking Desc: Attached Garage, Garage Door Opener

Property History for 551 River Road

DateEvent & SourcePriceAppreciation
Feb 10, 2015

Closed (Public Record)

Public Record #488312344

$1,745,000

+12.6% / yr

Jun 21, 2004

Closed (Public Record)

Public Record #139017585

$495,000

+25.8% / yr

Jul 21, 1995

Closed (Public Record)

Public Record #91007020

$64,000—
DateEvent & SourcePrice
02/10/2015

Closed (Public Record)

Public Record #488312344

$1,745,000

+12.6% / yr

06/21/2004

Closed (Public Record)

Public Record #139017585

$495,000

+25.8% / yr

07/21/1995

Closed (Public Record)

Public Record #91007020

$64,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 551 River Road

Taxable ValueLand$477,610Additions$739,690Total$1,217,300
Tax Record2024$15,045 ($1,254 / month)
Home Facts
Beds5Baths3.5Total Finished SqFt3,099 SqFtAbove Grade Finished SqFt3,099 SqFtUnfinished Basement SqFt1,311 SqFtStories2Lot Size9,583 SqFtStyleSingle Family ResidenceYear Built2014ZoningR-12CountyFAIRFIELDAPNGREE M:12 B:1534/S

Schools near 551 River Road

This home is within Greenwich School District.
Rating
School
Type
Grades
Distance
North Mianus School
Public - K to 5
Eastern Middle School
Public - 6 to 8
Greenwich High School
Public - 9 to 12
Rating
School
Distance
North Mianus School
PublicK to 5

Eastern Middle School
Public6 to 8

Greenwich High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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Listing Courtesy of BHHS New England Properties, Maria Arning

Based on information from one of the following Multiple Listing Services: Darien MLS, Smart MLS and Greenwich Multiple Listing Service. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Darien MLS, Smart MLS and Greenwich Multiple Listing Service is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.