Off market dec 2023 for $835K

$984,325

Est. refi paymentEst. refi $5,987/mo

—

•

— ba

•

3,095

sq ft

140 N Country Rd, Mount Sinai, NY 11766

About this home

Now available for sale in the beautiful Mount Sinai is this oversized 4 bedroom 2 ½ bathroom colonial, situated on an oversized corner lot. The first floor consists of a formal living room, which flows into the family room with a wood-burning fireplace, and an eat-in kitchen and formal dining room. Upstairs has all 4 bedrooms including the primary ensuite with tons of natural sunlight and vaulted ceilings. This property is perfectly set up for a home office or extended family with a separate entrance. The backyard is perfect for entertaining whether it’s on your massive back deck or lounging by your inground pool. This home also comes with an attached 2-car garage, central air conditioning, and updated electricity. Amazing opportunity to own a home in proximity to the beach and all Mount Sinai has to offer! Additional Information: HeatingFuel:Oil Below Ground,ParkingFeatures:2 Car Attached,

Single-familyProperty Type

1990Year Built

1.16 acresLot Size

$318Est. Price/Sq.Ft.

2 spacesParking

Listing by Bianca D'Alesandro • Serhant LLC

Bought with Bianca D'Alesandro • Serhant LLC

Bought with Miriam Hagendorn • Serhant LLC

Source:OneKey® MLS as Distributed by MLS Grid #H6252968

Redfin Estimate

$984,325

$149K since sold in December 2023$4,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.9% lower than the average sale price ($993K) of 6 comparable homes.

SOLD SEP 17, 2026
$899,000
A
4 beds2.5 baths2,899 sq ft
4 Carol Ct, Mount Sinai, NY 11766
Listing by BH&G R E Realty Connect
SOLD SEP 21, 2026
$915,000
B
4 beds2.5 baths2,482 sq ft
93 Chestnut St, Mount Sinai, NY 11766
Listing by Real Broker NY LLC
SOLD MAY 29, 2026
$1,029,830
C
4 beds2.5 baths2,950 sq ft
15 Frost Valley Rd, Mount Sinai, NY 11766
Listing by Realty Connect USA L I Inc
SOLD MAY 13, 2026
$1,376,000
D
4 beds2.5 baths3,038 sq ft
5 Frost Valley Rd, Mount Sinai, NY 11766
Listing by Signature Premier Properties
SOLD SEP 25, 2026
$755,000
E
4 beds2.5 baths2,450 sq ft
12 George Ct, Miller Place, NY 11764
Listing by Iconic Pros
SOLD SEP 18, 2026
$985,000
F
4 beds2.5 baths2,497 sq ft
16 Old Field Ln, Mount Sinai, NY 11766
Listing by Howard Hanna Coach

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Earn from this home

Sell

$292,740

Est. take-home

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Refinance

Est. cash available

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Rent

$3,481/mo

Redfin rental estimate

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Market trends in 11766, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.9%

+0.3% MoM

Median sale price

$800K

$25K MoM

Avg. days on market

31d

4 days MoM

Recently sold homes

1 MoM

New listings for sale

COMING SOON
$799,000
2 beds2 baths2,234 sq ft
93 Louden Loop, Mount Sinai, NY 11766
Listing by Douglas Elliman Real Estate
$1,699,000
Studio1 bath2,152 sq ft
365 Route 25a, Mount Sinai, NY 11766
Listing by Coldwell Banker American Homes
OPEN TODAY, 5PM TO 6:30PM
$699,999
4 beds2 baths1,770 sq ft
304 Pipe Stave Hollow Rd, Mount Sinai, NY 11766
Listing by Real Broker NY LLC
See all

Provided by Redfin

Sale history for 140 N Country Rd

Date

Event

Price

Public Records

Dec 28, 2023

Sold

$835,000

$270/sq ft

OneKey® MLS as Distributed by MLS Grid #H6252968

Sep 28, 2023

Sold

$835,000

$270/sq ft

Jul 6, 2023

Pending

—

Jun 7, 2023

Listed

$849,000

$274/sq ft

Public Records

Oct 13, 1995

Sold

$255,000

$82/sq ft

Public Records

Nov 25, 1992

Sold

$225,000

$73/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$21,255

$600 + $3,840

$4,440

2025

$21,255 (+11.5%)

$600 + $3,840

$4,440

2024

$19,057 (+11.7%)

$600 + $3,840

$4,440

2023

$17,064 (+6.3%)

$600 + $3,840

$4,440

2022

$16,051

$600 + $3,840

$4,440

2021

$16,051 (+1.7%)

$600 + $3,840

$4,440

2020

$15,780 (+1.2%)

$600 + $3,840

$4,440

2019

$15,594 (+2.5%)

$600 + $3,840

$4,440

2018

$15,219 (+2.2%)

$600 + $3,840

$4,440

2017

$14,894 (+0.4%)

$600 + $3,840

$4,440

2016

$14,835 (+3.0%)

$600 + $3,840

$4,440

2015

$14,401 (+1.0%)

$600 + $3,840

$4,440

2014

$14,260 (+2.7%)

$600 + $3,840

$4,440

2013

$13,883 (+1.9%)

$600 + $3,840

$4,440

2012

$13,630 (−8.7%)

$600 + $3,840

$4,440

2011

$14,924 (+3.2%)

$600 + $4,400

$5,000

2010

$14,456 (+4.2%)

$600 + $4,400

$5,000

2009

$13,873

$600 + $4,400

$5,000

Tax history for 140 N Country Rd

Year

Property tax

Land + Additions

Assessment*

2026

$21,255

$600 + $3,840

$4,440

2025

$21,255 (+11.5%)

$600 + $3,840

$4,440

2024

$19,057 (+11.7%)

$600 + $3,840

$4,440

2023

$17,064 (+6.3%)

$600 + $3,840

$4,440

2022

$16,051

$600 + $3,840

$4,440

2021

$16,051 (+1.7%)

$600 + $3,840

$4,440

2020

$15,780 (+1.2%)

$600 + $3,840

$4,440

2019

$15,594 (+2.5%)

$600 + $3,840

$4,440

2018

$15,219 (+2.2%)

$600 + $3,840

$4,440

2017

$14,894 (+0.4%)

$600 + $3,840

$4,440

2016

$14,835 (+3.0%)

$600 + $3,840

$4,440

2015

$14,401 (+1.0%)

$600 + $3,840

$4,440

2014

$14,260 (+2.7%)

$600 + $3,840

$4,440

2013

$13,883 (+1.9%)

$600 + $3,840

$4,440

2012

$13,630 (−8.7%)

$600 + $3,840

$4,440

2011

$14,924 (+3.2%)

$600 + $4,400

$5,000

2010

$14,456 (+4.2%)

$600 + $4,400

$5,000

2009

$13,873

$600 + $4,400

$5,000

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

Property details

Exterior

Property Information
Subdivision Name: DAIRY FARM ESTATES
Ground Floor Sq. Ft: 1,660
Building Sq. Ft: 3,095
Legal Description: DAIRY FARM EST 7883 3

Lot Information
# of Buildings: 1
Land Sq. Ft: 50,530
Legal Lot Number: 8
Legal Block Number: 0003
Municipality Name: BROOKHAVEN
Acres: 1.16
State Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: —
Sq. Ft.: 3,095
Stories: —
Lot Size: 1.16 acres
Style: Single Family Residential
Year Built: 1990
Year Renovated: —
County: Suffolk County
APN: 0200094000300008007

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Mount Sinai Elementary School

Public K-4 • Assigned • 0.4mi

6/10

Mount Sinai Middle School

Public 5-8 • Assigned • 0.4mi

6/10

Mount Sinai High School

Public 9-12 • Assigned • 0.4mi

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

5/10 Heat Factor

7 days above 95° expected this year, 16 days in 30 years

6/10 Wind Factor

75% chance of strong winds in next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Mount Sinai, NY • 11766

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 8.8 hours in June and 4.5 hours in December, which is comparable to the U.S. average for solar exposure.

8.8 hrs

4.5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$936,000 – $1.13M

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Nearby similar homes

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New listings for sale in 11766

COMING SOON

$799,000

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93 Louden Loop, Mount Sinai, NY 11766

All season sunroom • Paver patio • Indoor swimming pool

Listing by Douglas Elliman Real Estate

$1,699,000

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Flexible layout • On site parking • Commercial hub

Listing by Coldwell Banker American Homes

OPEN TODAY, 5PM TO 6:30PM

$699,999

4 beds2 baths1,770 sq ft

304 Pipe Stave Hollow Rd, Mount Sinai, NY 11766

Heating system • Cesspool septic • Oak cabinets

Listing by Real Broker NY LLC

Home values near 140 N Country Rd

Data from public records.

Address	Redfin Estimate
137 North Country Rd, Mount Sinai, NY 3 Beds \| 2 Baths \| - Sq. Ft.	$598,842
146 North Country Rd, Mount Sinai, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$860,551

Address	Redfin Estimate
122 North Country Rd, Mount Sinai, NY - Beds \| - Baths \| 4246 Sq. Ft.	$1,681,672
153 North Country Rd, Mount Sinai, NY - Beds \| - Baths \| 2459 Sq. Ft.	$641,754

Address	Redfin Estimate
129 North Country Rd, Mount Sinai, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$887,793
141 North Country Rd, Mount Sinai, NY - Beds \| - Baths \| 3232 Sq. Ft.	$675,785

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About this home

Redfin Estimate

Earn from this home

Market trends in 11766, NY

Sale history for 140 N Country Rd

Tax history for 140 N Country Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11766

Home values near 140 N Country Rd

More real estate resources