Off Market Feb 2022 for $2.7M

$4,616,174

Est. refi paymentEst. refi $17,205/mo

•

6,400

sq ft

340 Cognewaugh Rd, Cos Cob, CT 06807

About this home

PRICE REDUCED - BUILDER SAYS BRING ALL OFFERS - SPECTACULAR NEW CONSTRUCTION - 6,400sf home in Cos Cob. Built using the latest innovations in building science and technology to significantly reduce energy demand and, minimize exterior maintenance. The home was built using SIP (structurally insulated panels), closed-cell polyurethane foam insulation and triple-pane Pella windows to provide maximum insulation. All siding, trim and decking built using maintenance free, color-fast materials. These advanced construction techniques plus state-of-the-art air and water purification systems provide a healthy, safe and comfortable living environment. The home is built on 4 levels and features decks on each of the 3 above-ground levels offering scenic views of lush and private grounds. The 1st floor features 10ft ceilings, a stunning 2-story foyer showcasing a dramatic floating staircase, a chef's kitchen with quartz countertops, Subzero, Wolf, Bosch appliances and adjoins a family room opening to a spacious deck with a full outdoor kitchen for alfresco dining and entertainment The 2nd floor features a master suite with a cathedral ceiling, walk-in closets and a private deck. The 3rd floor offers space for private offices, home-schooling or an additional opening to a private deck. The lower level includes an exercise/Yoga room, a home theatre room plus a family/game room and full bath. A heated & air-conditioned garage with 15ft ceilings leads to a mudroom.

Single-familyProperty Type

2021Year Built

1.01 acresLot Size

$721Est. Price/Sq.Ft.

2 car garageParking

Listed by John Graves • Sotheby's International Realty

Bought with Carola Blanco-Encarnacion • Station Cities

Source:Smart MLS #170425934

Redfin Estimate

$4,616,174

$1.9M since sold in February 2022$365K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 23.9% higher than the average sale price ($3.73M) of 6 comparable homes.

SOLD JUN 9, 2026
$2,110,000
A
4 beds5.5 baths7,500 sq ft
14 Windermere Ln, Stamford, CT 06902
SOLD MAY 15, 2026
$2,550,000
B
4 beds4.5 baths4,161 sq ft
150 N Old Stone Bridge Rd, Cos Cob, CT 06807
SOLD MAY 21, 2026
$3,000,000
C
4 beds4.5 baths3,734 sq ft
29 Old Stone Bridge Rd, Cos Cob, CT 06807
SOLD MAY 29, 2026
$3,100,000
D
5 beds4.5 baths5,389 sq ft
399 Stanwich Rd, Greenwich, CT 06830
SOLD AUG 19, 2026
$5,950,000
E
5 beds5.5 baths6,233 sq ft
164 Stanwich Rd, Greenwich, CT 06830
SOLD MAY 19, 2026
$5,650,000
F
4 beds5 baths5,417 sq ft
129 Doubling Rd, Greenwich, CT 06830

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Earn from this home

Sell

$2,380,121

Est. take-home

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Refinance

Est. cash available

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Rent

$4,697/mo

Redfin rental estimate

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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
NEW 35 HRS AGO
$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
$1,800,000
3 beds2.5 baths2,550 sq ft
55 Cos Cob Ave, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 340 Cognewaugh Rd

Date

Event

Price

Smart MLS #170425934

Feb 2, 2022

Sold

$2,700,000

$422/sq ft

Oct 30, 2021

Price Changed

$2,700,000

$422/sq ft

Oct 12, 2021

Price Changed

$2,849,000

$445/sq ft

Aug 3, 2021

Listed

$2,899,000

$453/sq ft

GMLS #112140

Feb 1, 2022

Sold

$2,700,000

$422/sq ft

Dec 27, 2021

Pending

—

Nov 24, 2021

Contingent

—

Oct 29, 2021

Price Changed

$2,700,000

$422/sq ft

Oct 8, 2021

Price Changed

$2,849,000

$445/sq ft

Aug 3, 2021

Price Changed

$2,899,000

$453/sq ft

Apr 21, 2021

Price Changed

$2,950,000

$461/sq ft

Mar 16, 2021

Price Changed

$3,175,000

$496/sq ft

Feb 3, 2021

Listed

$3,400,000

$531/sq ft

+24

PRICE REDUCTION - BUILDER SAYS BRING ALL OFFERS - New Construction - 6400 Sq Ft home built using the latest innovation in building science and technology to significantly reduce energy nd and virtually eliminate exterior maintenance. Latest innovations in home water and air filtration technology a provide healthy, safe and comfortable living environment. The home offers 10ft ceilings on 1st fl with a stunning 2-story foyer showcasing a dramatic floating staircase, expansive decks on each level, a gourmet kitchen with Subzero, Wolf and Bosch appliances. The 2nd fl features a master suite with cathedral ceilings, walk-in closets and private deck. The 3rd floor level offers space for 2 private offices and home-schooling area with private deck. 340COGNEWAUGHRD. COM for more detail

Smart MLS #170370513

Jul 31, 2021

Listing Removed

—

Apr 21, 2021

Price Changed

$2,950,000

$461/sq ft

Mar 16, 2021

Price Changed

$3,175,000

$496/sq ft

Feb 4, 2021

Listed

$3,400,000

$531/sq ft

Smart MLS #170159199

Apr 8, 2019

Sold

$600,000

$94/sq ft

Mar 12, 2019

Listing Removed

—

Mar 2, 2019

Relisted

—

Mar 1, 2019

Listing Removed

—

Jan 27, 2019

Listed

$684,900

$107/sq ft

Smart MLS #170131352

Jan 7, 2019

Listing Removed

—

Oct 4, 2018

Listed

$684,900

$107/sq ft

Smart MLS #99165346

Jun 18, 2018

Listing Removed

—

Nov 2, 2016

Listed

$759,000

$119/sq ft

GMLS #100840

Feb 18, 2018

Delisted

—

Aug 24, 2017

Listed

$759,000

$119/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$20,472 (+27.6%)

$472,080 + $1,325,310

$1,797,390

2022

$16,050 (+34.0%)

$472,080 + $950,810

$1,422,890

2021

$11,979 (+97.5%)

$429,170 + $604,380

$1,033,550

2020

$6,065 (−0.5%)

$429,170 + $94,150

$523,320

2019

$6,094 (+2.7%)

$429,170 + $92,540

$521,710

2018

$5,932

$429,170 + $92,540

$521,710

2017

$5,932 (+1.5%)

$429,170 + $92,540

$521,710

2016

$5,843 (−23.7%)

$429,170 + $92,540

$521,710

2014

$7,661

$526,260 + $172,060

$698,320

Tax history for 340 Cognewaugh Rd

Year

Property tax

Land + Additions

Assessment*

2023

$20,472 (+27.6%)

$472,080 + $1,325,310

$1,797,390

2022

$16,050 (+34.0%)

$472,080 + $950,810

$1,422,890

2021

$11,979 (+97.5%)

$429,170 + $604,380

$1,033,550

2020

$6,065 (−0.5%)

$429,170 + $94,150

$523,320

2019

$6,094 (+2.7%)

$429,170 + $92,540

$521,710

2018

$5,932

$429,170 + $92,540

$521,710

2017

$5,932 (+1.5%)

$429,170 + $92,540

$521,710

2016

$5,843 (−23.7%)

$429,170 + $92,540

$521,710

2014

$7,661

$526,260 + $172,060

$698,320

*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

1.01 Acres

Year renovated

—

Sq. Ft.

4,999

Year built

2020

Style

Single Family Residential

County

Fairfield County

APN

1858574

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, Other
Garages Number: 2

Interior

Virtual Tour Information
Has Virtual Tour

Interior Information
Total Rooms: 6
Laundry Room Location: Separate Room - 2nd Floor
Interior Features: Auto Garage Door Opener, Cable - Available, Open Floor Plan, Security System
In-Law Apartment: No
Appliances, Lighting, Lock(s), Security System, Thermostat(s)
Fireplaces Total: 1
Cooling System: Central Air, Zoned
Appliances Included: Gas Cooktop

Bathroom Information
# of Baths (Full): 4
# of Baths (Half): 3

Bedroom Information
Beds Total: 4

Room Information
Room Count: 15
Basement Description: Full, Fully Finished, Heated, Cooled, Interior Access, Liveable Space

Exterior

Exterior Features
Roof Information: Asphalt Shingle
Exterior Siding: Hardie Board
Exterior Features: Balcony, Deck, French Doors, Garden Area, Grill, Stone Wall, Underground Sprinkler

Lot Information
Lot Description: Some Wetlands, Corner Lot, Level Lot, Lightly Wooded, Fence - Stone, Professionally Landscaped

Land Information
Encumbrances Restrictions: Inland-Wetland Restrictions

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

Property Information
Property Type: Single Family For Sale
Living Area SQFT Per Public Record: 3989
Driveway Type: Private, Paved, Asphalt

Financial

Assessments Information
Assessed Value: $1,033,550

Utilities

Utility Information
Water Source: Private Well
Sewage System: Septic
Hot Water Description: Tankless Hotwater
Heat Type: Hydro Air, Zoned
Heat Fuel Type: Propane
Energy Features: Energy Star Rated, Home Energy Rating, Extra Insulation, Generator, Heat Recovery Unit

Location

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

Location Information
State: Connecticut
Directions: Stanwich Road to Cognewaugh Road or Valley Road to Cognewaugh Road
County: Fairfield

Public facts

Beds: 4
Baths: 6.0
Sq. Ft.: 4,999
Stories: 3.0
Lot Size: 1.01 acres
Style: Single Family Residential
Year Built: 2020
Year Renovated: —
County: Fairfield County
APN: 1858574

Home facts updated by county records on Jul 12, 2023

Around this home

Schools

North Street School

Public PreK-5 • Assigned • 1.9mi

9/10

Central Middle School

Public 6-8 • Assigned • 2.0mi

8/10

Greenwich High School

Public 9-12 • Assigned • 2.6mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

9/10 Flood Factor

Estimated 80%+ chance 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 99° expected this year, 16 days in 30 years

6/10 Wind Factor

56% 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

$4.39M – $5.31M

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Nearby similar homes

NEW 35 HRS AGO

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Berkshire Hathaway HS NE Prop.

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OPEN SUN, 1PM TO 4PM

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New listings for sale in 06807

OPEN SUN, 1PM TO 4PM

$2,850,000

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154 Valley Rd, Cos Cob, CT 06807

NEW 35 HRS AGO

$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

$1,800,000

3 beds2.5 baths2,550 sq ft

55 Cos Cob Ave, Cos Cob, CT 06807

Home values near 340 Cognewaugh Rd

Data from public records.

Address	Redfin Estimate
333 Cognewaugh Road, Cos Cob, CT 3 Beds \| 2 Baths \| 3151 Sq. Ft.	$1,930,908
329 Cognewaugh Road, Cos Cob, CT 4 Beds \| 3 Baths \| 2651 Sq. Ft.	$2,171,686

Address	Redfin Estimate
380 Cognewaugh Road, Cos Cob, CT 4 Beds \| 3.5 Baths \| 3716 Sq. Ft.	$3,155,657
370 Cognewaugh Road, Cos Cob, CT 4 Beds \| 5.5 Baths \| 6656 Sq. Ft.	$4,423,334

Address	Redfin Estimate
330 Cognewaugh Road, Cos Cob, CT 4 Beds \| 2 Baths \| 1658 Sq. Ft.	$1,001,854
344 Cognewaugh Road, Cos Cob, CT 5 Beds \| 4 Baths \| 5621 Sq. Ft.	$3,271,526

Property information provided by Smart MLS when last listed in 2021. This data may not match . Learn more.

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