OFF MARKET

Off Market Sep 2016 for $925K

$1,613,894

Est. refi paymentEst. refi $4,336/mo

•

1,978

sq ft

42 Butler St, Cos Cob, CT 06807

About this home

Pristine four bedroom, two-and-one half bath colonial set high on a knoll with . 21 acres located only 1.5 blocks to the Cos Cos train station. With pretty sweeping lawns, rock gardens and professional landscaping the property is very nice. On the interior there is a large and spacious living room with fireplace and French doors to a great seasonal deck. The formal dining room is oversized and is great for entertaining. The kitchen features a gas range, half bath, quality cabinetry and tile finishes. The master suite has a newly renovated & expanded bath with laundry while the other bedrooms are all large and feature a shared bath. The lower level is unfinished but is quite roomy for all kinds of storage and even an un-official seasonal recreation room. Expansion potential.

Single-familyProperty Type

1920Year Built

9,147 sq ftLot Size

$816Est. Price/Sq.Ft.

Listed by Edward Mortimer • Sotheby's International Realty

Bought with Richard Breglia • William Raveis Real Estate

Redfin checked: a few seconds ago

•Source:GMLS #97169

Redfin Estimate

$1,613,894

$689K since sold in September 2016$32K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.3% lower than the average sale price ($1.84M) of 6 comparable homes.

SOLD JUL 7, 2026
$1,150,000
A
4 beds2 baths1,954 sq ft
50 Valleywood Rd, Cos Cob, CT 06807
SOLD MAY 15, 2026
$1,690,000
B
4 beds2.5 baths2,410 sq ft
16 Kent Pl, Cos Cob, CT 06807
SOLD JUL 31, 2026
$2,503,000
C
3 beds3.5 baths1,839 sq ft
20 Ridge Rd, Cos Cob, CT 06807
SOLD SEP 2, 2026
$2,150,000
D
3 beds3.5 baths1,820 sq ft
49 Riverside Ave, Riverside, CT 06878
SOLD JUN 22, 2026
$2,022,000
E
4 beds2.5 baths2,126 sq ft
34 1/2 Orchard St, Cos Cob, CT 06807
SOLD AUG 17, 2026
$1,530,000
F
4 beds3 baths2,720 sq ft
4 Cos Cob Ave, Cos Cob, CT 06807

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Earn from this home

Sell

$938,172

Est. take-home

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Refinance

Est. cash available

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Rent

$3,072/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

106.0%

+2.0% MoM

Median sale price

$2.0M

$320K MoM

Avg. days on market

15d

2 days MoM

Recently sold homes

4 MoM

New listings for sale

OPEN SAT, 1PM TO 3PM
$2,999,000
5 beds4 baths5,042 sq ft
59 Dandy Dr, Cos Cob, CT 06807
$2,195,000
1 bed1.5 baths1,088 sq ft
89 River Rd #304, Cos Cob, CT 06807
OPEN SAT, 12PM TO 2PM
$1,725,000
4 beds3 baths2,364 sq ft
12B Cross Ln, Cos Cob, CT 06807
$2,795,000
4 beds3.5 baths4,088 sq ft
340 Valley Rd #2, Cos Cob, CT 06807
$1,245,000
4 beds2.5 baths1,618 sq ft
88 Loughlin Ave, Cos Cob, CT 06807
$2,499,000
4 beds4 baths2,226 sq ft
7 Sundance Dr, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 42 Butler St

Date

Event

Price

GMLS #97169

Sep 6, 2016

Sold

$925,000

$468/sq ft

Jun 21, 2016

Listed

$950,000

$480/sq ft

GMLS #55595

Jun 25, 2004

Sold

$800,000

$404/sq ft

Feb 25, 2004

Listed

$799,000

$404/sq ft

Public Records

Oct 15, 1997

Sold

$265,000

$134/sq ft

GMLS #35696

Mar 4, 1997

Sold

—

Sep 4, 1996

Listed

$345,000

$174/sq ft

GMLS #32478

May 15, 1996

Sold

—

May 16, 1995

Listed

$399,000

$202/sq ft

Smart MLS #95030263

May 15, 1996

Listing Removed

—

May 16, 1995

Listed

$350,000

$177/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$6,172 (+1.6%)

$377,440 + $153,020

$530,460

2022

$6,077 (+0.7%)

$377,440 + $149,590

$527,030

2021

$6,035 (+0.2%)

$317,660 + $183,610

$501,270

2020

$6,025 (−1.0%)

$317,660 + $183,610

$501,270

2019

$6,085 (+2.3%)

$317,660 + $183,610

$501,270

2018

$5,950 (−1.0%)

$317,660 + $183,610

$501,270

2017

$6,010 (+1.6%)

$317,660 + $182,350

$500,010

2016

$5,915 (+2.5%)

$317,660 + $182,350

$500,010

2014

$5,769

$359,590 + $136,710

$496,300

Tax history for 42 Butler St

Year

Property tax

Land + Additions

Assessment*

2023

$6,172 (+1.6%)

$377,440 + $153,020

$530,460

2022

$6,077 (+0.7%)

$377,440 + $149,590

$527,030

2021

$6,035 (+0.2%)

$317,660 + $183,610

$501,270

2020

$6,025 (−1.0%)

$317,660 + $183,610

$501,270

2019

$6,085 (+2.3%)

$317,660 + $183,610

$501,270

2018

$5,950 (−1.0%)

$317,660 + $183,610

$501,270

2017

$6,010 (+1.6%)

$317,660 + $182,350

$500,010

2016

$5,915 (+2.5%)

$317,660 + $182,350

$500,010

2014

$5,769

$359,590 + $136,710

$496,300

*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

2.5

Stories

Lot width

—

Lot depth

—

Lot size

9,148 Sq. Ft.

Year renovated

—

Sq. Ft.

1,888

Year built

1920

Style

Single Family Residential

County

Fairfield County

APN

1849752

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2023.

Property details

Interior

Virtual Tour Information

Bathroom Information
# of Full Bathrooms: 2
# of Half Bathrooms: 1
Bathrooms Total Integer: 3
Bathrooms Total Decimal: 2.5

Heating & Cooling
Has Cooling
Cooling: Partial A/C
Has Heating
Heating: Hot Water

Interior Features
Interior Features: Kitchen Island
Has Fireplace(s)
# of Fireplaces Total: 1
Basement: Partial

Exterior

Exterior Features
Patio And Porch Features: Deck

Property Information
Property Sub-Type: Single Family Residence
Year Built: 1920
Year Built Effective: 2008
Roof: Asphalt, Fiberglass
Construction Materials: Vinyl Siding
Security Features: Security System
Building Area Total: 1978.0
Building Area Source: Architect

Lot Information
Lot Features: Formal Gardens, Hilly
Lot Size Area: 0.21
Lot Size Units: Acres
Lot Size Square Feet: 9147.6
Lot Size Acres: 0.21
Zoning: R-7

Financial

Tax Information
Tax Annual Amount: $5,915.60
Tax Assessed Value: $500,010

Utilities

Utilities Information
Utilities: Cable Connected
Sewer: Public Sewer
Water Source: Public

Location

School Information
Elementary School: Cos Cob
Middle Or Junior School: Central

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 1,888
Stories: 2.0
Lot Size: 9,148 square feet
Style: Single Family Residential
Year Built: 1920
Year Renovated: —
County: Fairfield County
APN: 1849752

Home facts updated by county records on Jul 12, 2023

Around this home

Schools

Cos Cob School

Public PreK-5 • Assigned • 0.6mi

6/10

Central Middle School

Public 6-8 • Assigned • 1.2mi

8/10

Greenwich High School

Public 9-12 • Assigned • 1.0mi

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

69% 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

$1.53M – $1.86M

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New listings for sale in 06807

OPEN SAT, 1PM TO 3PM

$2,999,000

5 beds4 baths5,042 sq ft

59 Dandy Dr, Cos Cob, CT 06807

$2,195,000

1 bed1.5 baths1,088 sq ft

89 River Rd #304, Cos Cob, CT 06807

OPEN SAT, 12PM TO 2PM

$1,725,000

4 beds3 baths2,364 sq ft

12B Cross Ln, Cos Cob, CT 06807

$2,795,000

4 beds3.5 baths4,088 sq ft

340 Valley Rd #2, Cos Cob, CT 06807

$1,245,000

4 beds2.5 baths1,618 sq ft

88 Loughlin Ave, Cos Cob, CT 06807

$2,499,000

4 beds4 baths2,226 sq ft

7 Sundance Dr, Cos Cob, CT 06807

Home values near 42 Butler St

Data from public records.

Address	Redfin Estimate
43 Butler St, Cos Cob, CT 2 Beds \| 2 Baths \| 1220 Sq. Ft.	$1,241,148
35 Butler St, Cos Cob, CT 4 Beds \| 3.5 Baths \| - Sq. Ft.	$2,612,805

Address	Redfin Estimate
38 Butler St, Cos Cob, CT 4 Beds \| 2.5 Baths \| 1650 Sq. Ft.	$1,619,413
39 Butler St, Cos Cob, CT 3 Beds \| 2 Baths \| 2047 Sq. Ft.	$1,542,977

Address	Redfin Estimate
36 Butler St, Cos Cob, CT 4 Beds \| 2.5 Baths \| 2006 Sq. Ft.	$1,610,473
41 Butler St, Cos Cob, CT 3 Beds \| 2.5 Baths \| 2241 Sq. Ft.	$1,955,096

Property information provided by GMLS when last listed in 2016. This data may not match . Learn more.

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