Google street view image for 12 Old Post Rd #6, Cos Cob, CT 06807

Off Market Dec 2004 for $1.1M

$2,702,251

Est. refi paymentEst. refi $7,071/mo

•

2.5 ba

•

3,034

sq ft

12 Old Post Rd #6, Cos Cob, CT 06807

About this home

12 Old Post Rd #6 is a 3,034 square foot house on a 0.42 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on December 13, 2004 for $1,150,000. Based on Redfin's Cos Cob data, we estimate the home's value is $2,702,251.

Single-familyProperty Type

1922Year Built

0.42 acresLot Size

$891Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,702,251

$1.6M since sold in December 2004$2,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 31.9% higher than the average sale price ($2.05M) of 6 comparable homes.

SOLD AUG 6, 2026
$2,025,000
A
5 beds2.5 baths3,340 sq ft
12 Old Post Rd, Cos Cob, CT 06807
SOLD JUL 7, 2026
$1,150,000
B
4 beds2 baths1,954 sq ft
50 Valleywood Rd, Cos Cob, CT 06807
SOLD JUL 31, 2026
$1,800,000
C
4 beds3 baths2,568 sq ft
14 Neil Ln, Riverside, CT 06878
SOLD JUN 26, 2026
$3,375,000
D
3 beds2.5 baths3,517 sq ft
97 Riverside Ave, Riverside, CT 06878
SOLD NOV 14, 2025
$2,250,000
E
4 beds2.5 baths2,423 sq ft
76 Sinawoy Rd, Cos Cob, CT 06807
SOLD MAY 15, 2026
$1,690,000
F
4 beds2.5 baths2,410 sq ft
16 Kent Pl, Cos Cob, CT 06807

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Earn from this home

Sell

$2,176,057

Est. take-home

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Refinance

Est. cash available

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Rent

$3,696/mo

Redfin rental estimate

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Market trends in 06830, CT

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.5%

+1.5% MoM

Median sale price

$2.9M

$299K MoM

Avg. days on market

32d

0 days MoM

Recently sold homes

18 MoM

New listings for sale

OPEN SUN, 1PM TO 3PM
$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
$1,699,000
4 beds3.5 baths3,120 sq ft
24 Harold St Unit B, Cos Cob, CT 06807
$1,739,000
4 beds6 baths2,856 sq ft
49 Harold St, Cos Cob, CT 06807
$759,000
2 beds2 baths1,368 sq ft
453 E Putnam Ave Unit 4G, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 12 Old Post Rd #6

Year

Property tax

Land + Additions

Assessment*

2023

$11,482 (+0.9%)

$490,420 + $496,370

$986,790

2022

$11,378 (−4.3%)

$490,420 + $496,370

$986,790

2021

$11,893 (+0.2%)

$435,890 + $551,880

$987,770

2020

$11,873 (−1.0%)

$435,890 + $551,880

$987,770

2019

$11,992 (+2.3%)

$435,890 + $551,880

$987,770

2018

$11,725 (−1.2%)

$435,890 + $551,880

$987,770

2017

$11,872 (+1.6%)

$435,890 + $551,880

$987,770

2016

$11,684 (+23.2%)

$435,890 + $551,880

$987,770

2014

$9,487

$451,990 + $364,070

$816,060

Tax history for 12 Old Post Rd #6

Year

Property tax

Land + Additions

Assessment*

2023

$11,482 (+0.9%)

$490,420 + $496,370

$986,790

2022

$11,378 (−4.3%)

$490,420 + $496,370

$986,790

2021

$11,893 (+0.2%)

$435,890 + $551,880

$987,770

2020

$11,873 (−1.0%)

$435,890 + $551,880

$987,770

2019

$11,992 (+2.3%)

$435,890 + $551,880

$987,770

2018

$11,725 (−1.2%)

$435,890 + $551,880

$987,770

2017

$11,872 (+1.6%)

$435,890 + $551,880

$987,770

2016

$11,684 (+23.2%)

$435,890 + $551,880

$987,770

2014

$9,487

$451,990 + $364,070

$816,060

*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 Sq. Ft: 1,171
Basement Type: Partial

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

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 8

Exterior

Exterior Information
Physical Condition: Very Good
Building Style Type: Tudor
Construction Type: Frame
Exterior Wall: Stone/Stucco
Roof Shape Type: Gable

Pool Information
Pool Type: Inground
Has Pool

Property Information
Living Sq. Ft: 3,034
# of Stories: 2

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

Lot Information
# of Buildings: 1
Land Sq. Ft: 18,295
Municipality Name: GREENWICH
Acres: 0.42
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.: 3,034
Stories: 2.0
Lot Size: 0.42 acres
Style: Single Family Residential
Year Built: 1922
Year Renovated: —
County: Fairfield County
APN: 1849580

Home facts updated by county records on Dec 11, 2023

Around this home

Schools

Cos Cob School

Public PreK-5 • Assigned • 0.4mi

6/10

Central Middle School

Public 6-8 • Assigned • 0.8mi

8/10

Greenwich High School

Public 9-12 • Assigned • 0.5mi

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, 15 days in 30 years

6/10 Wind Factor

67% chance of strong winds in next 30 years

6/10 Air Factor

9 unhealthy days expected this year, 13 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

$2.57M – $3.11M

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Nearby similar homes

OPEN SUN, 1PM TO 3PM

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5 beds3.5 baths4,324 sq ft

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VIDEO TOUR

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New listings for sale in 06807

OPEN SUN, 1PM TO 3PM

$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

$1,699,000

4 beds3.5 baths3,120 sq ft

24 Harold St Unit B, Cos Cob, CT 06807

$1,739,000

4 beds6 baths2,856 sq ft

49 Harold St, Cos Cob, CT 06807

$759,000

2 beds2 baths1,368 sq ft

453 E Putnam Ave Unit 4G, Cos Cob, CT 06807

Home values near 12 Old Post Rd #6

Data from public records.

Address	Redfin Estimate
16 Old Post Road #6, Cos Cob, CT 3 Beds \| 3 Baths \| 2493 Sq. Ft.	—
6 Field Road, Cos Cob, CT 6 Beds \| 3.5 Baths \| 4448 Sq. Ft.	$2,530,230

Address	Redfin Estimate
12 Old Post Road, Cos Cob, CT 5 Beds \| 2.5 Baths \| 3340 Sq. Ft.	$1,932,465
3 Stanwich Road, Greenwich, CT 4 Beds \| 7 Baths \| 5804 Sq. Ft.	$6,677,221

Address	Redfin Estimate
13 Valleywood Road, Cos Cob, CT 4 Beds \| 3 Baths \| 1909 Sq. Ft.	$1,874,658
6 Valleywood Road, Cos Cob, CT 3 Beds \| 2 Baths \| 1844 Sq. Ft.	$1,493,037

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 06830, CT

Sale history for 12 Old Post Rd #6

Tax history for 12 Old Post Rd #6

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 06807

Home values near 12 Old Post Rd #6

More real estate resources