Off Market Apr 2018 for $3.7M

$7,958,222

•

9,048

sq ft

171 Cognewaugh Rd, Cos Cob, CT 06807

About this home

Sophisticated 2017 colonial that combines timeless architectural elements with modern contemporary details. Ten foot ceilings on the first floor with a spectacular double height ceiling in the family room. Fireplaces are located in the living room, family room, lower level play room and the master bedroom. Special details include custom 9 ft sliding barn doors, antique doors in the family room, antique doors in the wine cellar and a one of a kind wine tasting table in the wine cellar as well. Expansive lawn and mature plantings can be seen from the bluestone patio with firepit and outdoor grill. A special feature is a 1200 sq ft two bedroom charming guest cottage with a fireplace and covered front porch. Generator, sprinkler system.

Single-familyProperty Type

2017Year Built

2.15 acresLot Size

$880Est. Price/Sq.Ft.

3 car garageParking

Listed by Roseann Sarica Benedict • William Raveis Real Estate

Bought with Danielle Malloy • Five Corners Properties

Source:Smart MLS #170011200

Redfin Estimate

$7,958,222

$4.3M since sold in April 2018$89K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 35% higher than the average sale price ($5.89M) of 5 comparable homes.

SOLD AUG 10, 2020
$3,950,000
A
6 beds5.5 baths6,700 sq ft
170 Stanwich Rd, Greenwich, CT 06830
SOLD AUG 19, 2026
$5,950,000
B
5 beds5.5 baths6,233 sq ft
164 Stanwich Rd, Greenwich, CT 06830
SOLD JUL 6, 2026
$4,350,000
C
6 beds7.5 baths6,447 sq ft
112 Sheephill Rd, Riverside, CT 06878
SOLD JUL 30, 2026
$5,500,000
D
6 beds6.5 baths6,364 sq ft
110 Sheephill Rd, Riverside, CT 06878
SOLD JUN 29, 2026
$9,718,000
E
6 beds7.5 baths8,370 sq ft
56 Winthrop Dr, Riverside, CT 06878

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$5,053,335

Est. take-home

List your home with Redfin and save $79,582

Market trends in 06807, CT

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.9%

+0.7% MoM

Median sale price

$1.7M

$32K MoM

Avg. days on market

17d

6 days MoM

Recently sold homes

12 MoM

New listings for sale

OPEN SUN, 1PM TO 4PM
$2,850,000
3 beds3.5 baths3,647 sq ft
154 Valley Rd, Cos Cob, CT 06807
$3,250,000
4 beds7 baths4,074 sq ft
13 Lia Fail Way, Greenwich, CT 06807
Berkshire Hathaway HS NE Prop.
$1,379,000
2 beds2.5 baths1,732 sq ft
115 River Rd #5, Cos Cob, CT 06807
$869,500
2 beds3 baths1,428 sq ft
49 Harold St #2, Cos Cob, CT 06807
$869,500
2 beds3 baths1,428 sq ft
49 Harold St #1, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 171 Cognewaugh Rd

Date

Event

Price

Smart MLS #170011200

Apr 20, 2018

Sold

$3,700,000

$409/sq ft

Apr 17, 2018

Pending

—

Sep 2, 2017

Listed

$3,985,000

$440/sq ft

GMLS #99834

Apr 20, 2018

Sold

$3,700,000

$409/sq ft

May 10, 2017

Listed

$3,985,000

$440/sq ft

+26

GMLS #85120

Nov 7, 2013

Sold

$1,000,000

$111/sq ft

May 7, 2013

Listed

$1,289,000

$142/sq ft

+16

THIS CLASSIC HISTORIC COLONIAL COMPOUND IS A REMARKABLE SETTING. THERE ARE UNIQUE DETAILS REFLECTING THE CHARACTER & AGE. WIDE BOARD PINE FLOORS WITH HAND CUT WROUGHT IRON NAILS, SOME RANDOM WIDTH OAK PEGGED FLOORS, ANTIQUE FIELDSTONE TERRACE. 3 LEVELS OFFER SPACIOUS ROOMS, FLEXIBLE FLOOR PLAN & EASY ACCESS TO THE MAGNIFICENT GROUNDS, GARDENS & MEADOWS ORGANICALLY TENDED. STONEWALLS, TOTALLY FENCED. OPPORTUNITY FOR FURTHER RESTORATION/EXPANSION. ABUNDANT POSSIBILITIES. AQUARION WATER & 2 WELLS. GENERATOR.

Smart MLS #99026893

Nov 7, 2013

Sold

$1,000,000

$111/sq ft

May 6, 2013

Listed

$1,289,000

$142/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$30,462 (+1.0%)

$634,410 + $2,040,010

$2,674,420

2022

$30,167 (−6.5%)

$634,410 + $2,040,010

$2,674,420

2021

$32,256

$576,800 + $2,206,260

$2,783,060

2020

$32,256 (−0.8%)

$576,800 + $2,206,260

$2,783,060

2019

$32,506 (+2.7%)

$576,800 + $2,206,260

$2,783,060

2018

$31,643 (+87.7%)

$576,800 + $2,206,260

$2,783,060

2017

$16,858 (+84.1%)

$576,800 + $905,870

$1,482,670

2016

$9,156 (−30.6%)

$576,800 + $240,730

$817,530

2014

$13,190

$920,010 + $282,380

$1,202,390

Tax history for 171 Cognewaugh Rd

Year

Property tax

Land + Additions

Assessment*

2023

$30,462 (+1.0%)

$634,410 + $2,040,010

$2,674,420

2022

$30,167 (−6.5%)

$634,410 + $2,040,010

$2,674,420

2021

$32,256

$576,800 + $2,206,260

$2,783,060

2020

$32,256 (−0.8%)

$576,800 + $2,206,260

$2,783,060

2019

$32,506 (+2.7%)

$576,800 + $2,206,260

$2,783,060

2018

$31,643 (+87.7%)

$576,800 + $2,206,260

$2,783,060

2017

$16,858 (+84.1%)

$576,800 + $905,870

$1,482,670

2016

$9,156 (−30.6%)

$576,800 + $240,730

$817,530

2014

$13,190

$920,010 + $282,380

$1,202,390

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

2.15 Acres

Year renovated

—

Sq. Ft.

—

Year built

—

Style

Other

County

Fairfield County

APN

2405517

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2023.

Property details

Parking

Garage Information
Garage & Parking: Attached Garage
Garages Number: 3

Interior

Interior Information
Total Rooms: 13
Laundry Room Location: full laundry room on second floor
Interior Features: Auto Garage Door Opener, Security System
In-Law Apartment: Yes
Fireplaces Total: 5
Cooling System: Central Air
Appliances Included: Gas Cooktop, Wall Oven, Microwave, Refrigerator, Dishwasher, Wine Chiller

Bathroom Information
# of Baths (Full): 6
# of Baths (Half): 2

Bedroom Information
Beds Total: 7

Room Information
Rooms Additional: Wine Cellar
Room Count: 12
Basement Description: Fully Finished, Walk-out
Has Attic
Attic Description: Pull-Down Stairs

Exterior

Exterior Features
Roof Information: Asphalt Shingle
Exterior Siding: Clapboard
Exterior Features: Garden Area, Gazebo, Guest House, Patio

Lot Information
Lot Description: Dry, Level Lot, Lightly Wooded, Treed

Building Information
New Construction Type: Completed/Never Occupied
Foundation Type: Concrete
Construction Description: Frame

Property Information
Property Type: Single Family For Sale

Financial

Assessments Information
Assessed Value: $1,482,670

Utilities

Utility Information
Water Source: Public Water Connected
Sewage System: Septic
Hot Water Description: Propane
Heat Type: Hydro Air
Heat Fuel Type: Propane
Energy Features: Energy Star Rated, Generator, Thermopane Windows

Location

School Information
Middle Jr High School: Central
High School: Greenwich
Elementary School: North Street

Location Information
State: Connecticut
Nearby Amenities: Golf Course, Health Club, Library, Shopping/Mall
Directions: Valley Road to Cognewaugh to #171
County: Fairfield

Public facts

Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 2.15 acres
Style: Other
Year Built: —
Year Renovated: —
County: Fairfield County
APN: 2405517

Home facts updated by county records on Jul 12, 2023

Other

Documents & Disclosures
Supplement Count Public: 1

Around this home

Schools

North Street School

Public PreK-5 • Assigned • 1.8mi

9/10

Central Middle School

Public 6-8 • Assigned • 1.6mi

8/10

Greenwich High School

Public 9-12 • Assigned • 2.1mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 98° expected this year, 15 days in 30 years

6/10 Wind Factor

67% chance of strong winds in next 30 years

4/10 Air Factor

5 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Cos Cob, CT • 06807

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

Estimated sale price

$7.56M – $9.15M

Reach more buyers when you sell with Redfin. Save up to $79,582 in fees. 3 minutes to get started.

Get a free, detailed breakdown of how we calculated your estimate.

Nearby similar homes

$3,250,000

4 beds7 baths4,074 sq ft

13 Lia Fail Way, Greenwich, CT 06807

Berkshire Hathaway HS NE Prop.

$1,900,000

4 beds4 baths3,164 sq ft

47 Summit Ridge Rd, Stamford, CT 06902

OPEN SUN, 1PM TO 4PM

$2,750,000

4 beds4 baths3,150 sq ft

316 Valley Rd, Cos Cob, CT 06807

$7,450,000

5 beds7.5 baths8,911 sq ft

74 Rock Maple Rd, Greenwich, CT 06830

OPEN TODAY, 1PM TO 3PM

$1,469,000

4 beds2.5 baths1,750 sq ft

5 Griffith Rd, Riverside, CT 06878

$8,995,000

6 beds7 baths11,567 sq ft

31 Sawmill Ln, Greenwich, CT 06830

New listings for sale in 06807

OPEN SUN, 1PM TO 4PM

$2,850,000

3 beds3.5 baths3,647 sq ft

154 Valley Rd, Cos Cob, CT 06807

$3,250,000

4 beds7 baths4,074 sq ft

13 Lia Fail Way, Greenwich, CT 06807

Berkshire Hathaway HS NE Prop.

$1,379,000

2 beds2.5 baths1,732 sq ft

115 River Rd #5, Cos Cob, CT 06807

$869,500

2 beds3 baths1,428 sq ft

49 Harold St #2, Cos Cob, CT 06807

$869,500

2 beds3 baths1,428 sq ft

49 Harold St #1, Cos Cob, CT 06807

Home values near 171 Cognewaugh Rd

Data from public records.

Address	Redfin Estimate
172 Cognewaugh Road, Cos Cob, CT 4 Beds \| 4 Baths \| 3865 Sq. Ft.	$3,271,608
181 Cognewaugh Road, Cos Cob, CT 4 Beds \| 5 Baths \| 5335 Sq. Ft.	$4,172,911

Address	Redfin Estimate
178 Cognewaugh Road, Cos Cob, CT 4 Beds \| 4.5 Baths \| 5100 Sq. Ft.	$4,250,112
155 Cognewaugh Road, Cos Cob, CT 4 Beds \| 5 Baths \| 4836 Sq. Ft.	$3,858,740

Address	Redfin Estimate
163 Cognewaugh Road, Cos Cob, CT 4 Beds \| 3.5 Baths \| 3474 Sq. Ft.	$2,632,878
191 Cognewaugh Road, Cos Cob, CT 6 Beds \| 3.5 Baths \| 6079 Sq. Ft.	$4,710,978

Property information provided by Smart MLS when last listed in 2017. This data may not match . Learn more.

More real estate resources

Cities
Zip Codes
Neighborhoods
Minor Civil Divisions
Popular Searches

Greenwich homes for sale
New York homes for sale
Stamford homes for sale

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

06830 homes for sale
06902 homes for sale
06831 homes for sale
06870 homes for sale
06878 homes for sale

Newfield-Westover-Turn of River homes for sale
Mid Country West homes for sale
Eastern Greenwich homes for sale
Mid Country East homes for sale
North Old Greenwhich homes for sale

Wilton homes for sale
Weston homes for sale
Monroe homes for sale
Fairfield homes for sale
New Canaan homes for sale

Houses for rent in Cos Cob	Agents near me	Westport, CT homes for sale	Cos Cob Housing Market
Houses for sale near me	Greenwich, CT homes for sale	New Haven, CT homes for sale
Land for sale near me	Stamford, CT homes for sale	Milford, CT homes for sale
Open Houses near me	West Hartford, CT homes for sale	Cos Cob Property Records
Condos for sale near me	Norwalk, CT homes for sale	CT New Listings