12 Old Post Rd, Cos Cob, CT 06807
Property image
Property image
SOLD
AUG 6, 2026

12 Old Post Rd
Cos Cob, CT 06807

Cos Cob
  • 5 Beds
  • 2.5 Baths
  • 3,340 sqft (on 0.42 acres)

$2,025,000

Last Sold: Aug 6, 2026
2% below list $2.08M
$606/sqft
Est. Refi. Payment $13,305/mo*
Refinance Your Home

$2,025,000

Last Sold: Aug 6, 2026
2% below list $2.08M
$606/sqft
Est. Refi. Payment $13,305/mo*
Refinance Your Home
5 Beds
2.5 Baths
3,340 sqft
(on 0.42 acres)

Local Information

  • Map ViewExplore the area around 12 Old Post Rd.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1922
Lot Size
0.42 acres
Living Area
3,340 sqft
Price/Sqft
$606/sqft
Parking
Garage

About this House

A special opportunity to own this charming oasis close to town. Tucked behind iron gates awaits an enclave with pool, mature trees and ivy. The main floor has a spacious living room that leads to a heated sunroom, a formal dining room and a kitchen with a commercial cooktop and vent system. The second floor has a primary bedroom with a marble bath and shower and en-suite sitting room/closet. 2 other bedrooms with a sunroom and library. The top floor has another bedroom and an office space. There is a salt-water in-ground pool with a spa and stone patio. The back staircase leads to the primary bedroom sitting area. The fireplace in the kitchen is now used as wine rack. FAR allows up to5,750 sqft.
12 Old Post Rd, Cos Cob, CT 06807 is a 5 bedroom, 3 bathroom, 3,340 sqft single-family home in Cos Cob, built in 1922. It last sold for $2,025,000 on Aug 6, 2026 (2% below the $2,075,000 asking price). More recently, it was listed as a rental in June 2026 with an asking price of $11,000 per month. That rental listing was removed on July 2, 2026. It is currently off market. The Trulia Estimate is $2,012,700, with a rent estimate of $7,949/month.

Home Details for 12 Old Post Rd

Interior Features

Interior Details
Basement: Full
Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 3Number of Bathrooms (full): 2Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 3340 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available
Heating & Cooling
Heating: Natural Gas,Forced AirHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Natural Gas
Fireplace & Spa
Number of Fireplaces: 2Spa: HeatedHas a FireplaceHas a Spa
Security
Security: Security System

Exterior Features

Exterior Home Features
Roof: AsphaltPatio / Porch: TerraceOther Structures: Shed(s)Has a Private Pool
Parking & Garage
Number of Garage Spaces: 1Number of Covered Spaces: 1Has a GarageParking Spaces: 1Parking: Garage Door Opener
Pool
Pool

Property Information

Year Built
Year Built: 1922Year Renovated: 2016
Property Type / Style
Property Type: ResidentialProperty Subtype: Residential, Single Family ResidenceArchitecture: Tudor
Building
Construction Materials: Brick, Stucco
Property Information
Included in Sale: Washer/Dryer, All Kitchen ApplncsParcel Number: 081596/S

Price & Status

Price
List Price: $2,075,000Price Per Sqft: $606/sqft
Status Change & Dates
Off Market Date: Thu Jul 02 2026

Active Status

MLS Status: Closed

Location

Direction & Address
City: Cos Cob
School Information
Elementary School: Cos CobJr High / Middle School: Central

Building

Building Area
Building Area: 3340 Square Feet

Lot Information

Lot Area: 0.42 acres

Mobile R/V

Mobile Home Park
Mobile Home Units: Feet

Miscellaneous

BasementMls Number: 124934
Last check for updates: about 3 hours ago
Listed by Mie Glenn, (203) 249-1121
BHHS New England Properties
Bought with: Barbara Daly, (203) 912-8504, Sotheby's International Realty
Source: Greenwich MLS, Inc., MLS#124934

Price History for 12 Old Post Rd

DatePriceEventSource
08/06/2026$2,025,000Sold
Greenwich MLS, Inc. #124934
07/02/2026$11,000ListingRemovedBerkshire Hathaway HomeServices New England Properties
07/02/2026$2,075,000ContingentBerkshire Hathaway HomeServices New England Properties #124934
07/02/2026$2,075,000PendingGreenwich MLS, Inc. #124934
06/11/2026$11,000Listed For RentBerkshire Hathaway HomeServices New England Properties
06/10/2026$2,075,000PriceChange
Greenwich MLS, Inc. #124934
05/07/2026$2,350,000Listed For SaleGreenwich MLS, Inc. #124934
06/01/2022$9,350Sold
BHHS NE Properties sold #170493473_06807
11/14/2016$6,900Sold
N/A
08/19/2016$1,550,000Listed For SaleAgent Provided

Market trends in Greenwich

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.1M
$340KMoM
Sale-to-List Price
102.7%
1.5%MoM
Price per sq ft
$801
$22MoM
Available listings
190
7MoM
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Comparable Sales for 12 Old Post Rd

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
7 Stanwich Rd, Greenwich, CT
0.05
Single-Family Home
$4,100,000
01/21/26
5
3.5
4,000
11 Valleywood Rd, Cos Cob, CT
0.08
Single-Family Home
$2,745,000
11/20/25
5
4.5
3,934
52 Valleywood Rd, Cos Cob, CT
0.27
Single-Family Home
$1,855,000
05/15/26
4
3
1,944
50 Valleywood Rd, Cos Cob, CT
0.26
Single-Family Home
$1,150,000
07/07/26
4
2
1,954
50 Valleywood Road, Greenwich, CT
0.27
Single-Family Home
$1,150,000
07/07/26
4
2
1,954
76 Sinawoy Rd, Cos Cob, CT
0.51
Single-Family Home
$2,250,000
11/14/25
4
2.5
2,423
44 Bote Rd, Greenwich, CT
0.42
Single-Family Home
$2,605,000
09/08/25
4
4.5
2,916

Nearby homes

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Assigned Schools

These are the assigned schools for 12 Old Post Rd.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Cos Cob
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Cos Cob

At least 1 Trulia users voted on each feature.

  • 100 % Say neighbors are friendly

  • 100 % Say there are community events

  • 100 % Say there's holiday spirit

  • 100 % Say it's walkable to grocery stores

  • 100 % Say it's walkable to restaurants

  • 100 % Say parking is easy

  • 100 % Say car is needed

  • 100 % Say streets are well-lit

  • 100 % Say it's dog friendly

Sourced by Trulia users. Learn more about our methodology.

LGBTQ Local Legal Protections

Apartments for Rent

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Explore by feature - Pet Friendly

46 pet-friendly rentals in Cos Cob, CT

Explore by feature - Garage

63 rentals with a garage in Cos Cob, CT

Explore by feature - Air Conditioning

134 rentals with air conditioning in Cos Cob, CT

Explore by feature - Pool

18 rentals with a pool in Cos Cob, CT

Explore by feature - Washer/dryer

100 rentals with a washer/dryer in Cos Cob, CT

Explore by feature - Outdoor Space

26 rentals with an outdoor space in Cos Cob, CT

Homes for sale near 12 Old Post Rd

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Off Market Homes Near 12 Old Post Rd

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Frequently asked questions about 12 Old Post Rd

  • What is 12 Old Post Rd estimated to be worth?
    Trulia's estimated value for 12 Old Post Rd in Cos Cob, CT is $2,012,700.
  • What is the price history for 12 Old Post Rd?
    12 Old Post Rd in Cos Cob, CT last sold for $2,025,000 in August 2026.
  • Is Cos Cob a buyer's or seller's market?
    Cos Cob is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Cos Cob?
    The median sale price in Cos Cob is $2.1M. That is up $340K from the prior month.
  • Does 12 Old Post Rd have air conditioning?
    Yes, 12 Old Post Rd in Cos Cob, CT has air conditioning.
  • Does 12 Old Post Rd have a pool?
    Yes, 12 Old Post Rd in Cos Cob, CT has a pool.
Listing data courtesy of Greenwich MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by the MLS.