Google street view image for 9 Cat Rock Rd, Cos Cob, CT 06807

Off Market Oct 1989 for $510K

$2,741,219

Est. refi paymentEst. refi $3,318/mo

•

2.5 ba

•

3,134

sq ft

9 Cat Rock Rd, Cos Cob, CT 06807

About this home

9 Cat Rock Rd is a 3,134 square foot house on a 0.78 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on October 31, 1989 for $510,000. Based on Redfin's Cos Cob data, we estimate the home's value is $2,741,219.

Single-familyProperty Type

1869Year Built

0.78 acresLot Size

$875Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,741,219

$2.2M since sold in October 1989$366K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.9% higher than the average sale price ($2.64M) of 6 comparable homes.

SOLD DEC 18, 2025
$2,300,000
A
4 beds3.5 baths3,670 sq ft
7 Pleasant View Pl, Old Greenwich, CT 06870
SOLD AUG 20, 2026
$3,330,000
B
4 beds3 baths3,543 sq ft
51 Dandy Dr, Cos Cob, CT 06807
SOLD JUL 23, 2026
$3,000,000
C
4 beds2.5 baths2,618 sq ft
14 Pond Pl, Cos Cob, CT 06807
SOLD JUL 21, 2026
$1,850,000
D
4 beds3.5 baths3,546 sq ft
86 Dandy Dr, Cos Cob, CT 06807
SOLD JUL 7, 2026
$3,000,000
E
4 beds4 baths3,569 sq ft
185 Valley Rd, Cos Cob, CT 06807
SOLD AUG 21, 2026
$2,350,000
F
4 beds3.5 baths2,902 sq ft
9 Deluca Dr, Cos Cob, CT 06807

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

Earn from this home

Sell

$2,581,788

Est. take-home

List your home with Redfin and save $27,412

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,642/mo

Redfin rental estimate

List your home for rent

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

NEW 34 MINS AGO
$3,250,000
4 beds7 baths4,074 sq ft
13 Lia Fail Way, Greenwich, CT 06807
COMING SOON
$2,850,000
3 beds3.5 baths3,647 sq ft
154 Valley Rd, Cos Cob, CT 06807
$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
$1,800,000
3 beds2.5 baths2,550 sq ft
55 Cos Cob Ave, Cos Cob, CT 06807
$1,739,000
4 beds6 baths2,856 sq ft
49 Harold St, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 9 Cat Rock Rd

Year

Property tax

Land + Additions

Assessment*

2023

$11,793 (+0.9%)

$739,690 + $273,840

$1,013,530

2022

$11,686 (+6.7%)

$739,690 + $273,840

$1,013,530

2021

$10,957 (+0.2%)

$623,560 + $286,510

$910,070

2020

$10,939 (−0.2%)

$623,560 + $286,510

$910,070

2019

$10,958 (+2.3%)

$623,490 + $279,160

$902,650

2018

$10,714 (−1.2%)

$623,490 + $279,160

$902,650

2017

$10,849 (+1.6%)

$623,490 + $279,160

$902,650

2016

$10,677 (+13.9%)

$623,490 + $279,160

$902,650

2014

$9,378

$682,920 + $123,760

$806,680

Tax history for 9 Cat Rock Rd

Year

Property tax

Land + Additions

Assessment*

2023

$11,793 (+0.9%)

$739,690 + $273,840

$1,013,530

2022

$11,686 (+6.7%)

$739,690 + $273,840

$1,013,530

2021

$10,957 (+0.2%)

$623,560 + $286,510

$910,070

2020

$10,939 (−0.2%)

$623,560 + $286,510

$910,070

2019

$10,958 (+2.3%)

$623,490 + $279,160

$902,650

2018

$10,714 (−1.2%)

$623,490 + $279,160

$902,650

2017

$10,849 (+1.6%)

$623,490 + $279,160

$902,650

2016

$10,677 (+13.9%)

$623,490 + $279,160

$902,650

2014

$9,378

$682,920 + $123,760

$806,680

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

Property details

Interior

Basement Information
Basement Type: Partial

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 9

Exterior

Exterior Information
Physical Condition: Very Good
Building Style Type: Colonial
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 3,134
# of Stories: 2

Parking & Garage Information
Parking Type: Attached Garage
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 33,977
Municipality Name: GREENWICH
Acres: 0.78
Zoning Code: R-12
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 3,134
Stories: 2.0
Lot Size: 0.78 acres
Style: Single Family Residential
Year Built: 1869
Year Renovated: —
County: Fairfield County
APN: 1855907

Home facts updated by county records on Jul 12, 2023

Around this home

Schools

North Street School

Public PreK-5 • Assigned • 1.7mi

9/10

Central Middle School

Public 6-8 • Assigned • 1.1mi

8/10

Greenwich High School

Public 9-12 • Assigned • 1.7mi

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

6/10 Heat Factor

7 days above 98° expected this year, 16 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

In this area, properties receive around 8.7 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$2.61M – $3.15M

Reach more buyers when you sell with Redfin. Save up to $27,412 in fees. 3 minutes to get started.

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

Nearby similar homes

NEW 29 HRS AGO

$3,295,000

4 beds4.5 baths4,500 sq ft

34 Wescott St, Riverside, CT 06878

$19,950,000

9 beds11 baths16,154 sq ft

16 Doubling Rd, Greenwich, CT 06830

$1,800,000

3 beds2.5 baths2,550 sq ft

55 Cos Cob Ave, Cos Cob, CT 06807

$1,900,000

4 beds4 baths3,164 sq ft

47 Summit Ridge Rd, Stamford, CT 06902

NEW 34 MINS AGO

$3,250,000

4 beds7 baths4,074 sq ft

13 Lia Fail Way, Greenwich, CT 06807

$2,999,000

6 beds5.5 baths4,300 sq ft

20 Sound Beach Ave, Old Greenwich, CT 06870

New listings for sale in 06807

NEW 34 MINS AGO

$3,250,000

4 beds7 baths4,074 sq ft

13 Lia Fail Way, Greenwich, CT 06807

COMING SOON

$2,850,000

3 beds3.5 baths3,647 sq ft

154 Valley Rd, Cos Cob, CT 06807

$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

$1,800,000

3 beds2.5 baths2,550 sq ft

55 Cos Cob Ave, Cos Cob, CT 06807

$1,739,000

4 beds6 baths2,856 sq ft

49 Harold St, Cos Cob, CT 06807

Home values near 9 Cat Rock Rd

Data from public records.

Address	Redfin Estimate
3 Cat Rock Road, Cos Cob, CT 4 Beds \| 2.5 Baths \| 3334 Sq. Ft.	$2,974,841
4 Cat Rock Road, Cos Cob, CT 4 Beds \| 3.5 Baths \| 3347 Sq. Ft.	$3,137,933

Address	Redfin Estimate
2 Cat Rock Road, Cos Cob, CT 4 Beds \| 3 Baths \| 2151 Sq. Ft.	$2,516,669
14 Cat Rock Road, Cos Cob, CT 3 Beds \| 2 Baths \| 1104 Sq. Ft.	$2,119,394

Address	Redfin Estimate
6 Cat Rock Road, Cos Cob, CT 4 Beds \| 1.5 Baths \| 1876 Sq. Ft.	$1,713,467
10 Cat Rock Road, Cos Cob, CT 5 Beds \| 4.5 Baths \| 4320 Sq. Ft.	$4,300,532

More real estate resources

Zip Codes
Minor Civil Divisions
Cities
Neighborhoods
Popular Searches

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

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

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

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