Google street view image for 2 Frost Valley Rd, Mount Sinai, NY 11766

Off market aug 1997 for $225K

$791,552

Est. refi paymentEst. refi $1,243/mo

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•

— ba

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2,448

sq ft

2 Frost Valley Rd, Mount Sinai, NY 11766

About this home

2 Frost Valley Rd is a 2,448 square foot house on a 0.87 acre lot. - it last sold on August 22, 1997 for $225,000. Based on Redfin's Mount Sinai data, we estimate the home's value is $791,552.

Single-familyProperty Type

1970Year Built

0.87 acresLot Size

$323Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$791,552

$567K since sold in August 1997$7,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.7% lower than the average sale price ($831K) of 6 comparable homes.

SOLD OCT 23, 2026
$850,000
A
4 beds4 baths2,679 sq ft
45 Hillcrest Ave, Port Jefferson, NY 11777
Listing by Real Broker NY LLC
SOLD OCT 7, 2026
$860,000
B
4 beds3 baths2,400 sq ft
135 Oakwood Rd, Port Jefferson, NY 11777
Listing by Coldwell Banker American Homes
SOLD SEP 18, 2026
$735,000
C
4 beds2.5 baths2,200 sq ft
107 Red Oak Ct, Port Jefferson Station, NY 11777
Listing by Real Broker NY LLC
SOLD SEP 3, 2026
$850,000
D
5 beds3.5 baths2,424 sq ft
95 Crystal Brook Hollow Rd, Mount Sinai, NY 11766
Listing by Serhant East End LLC
SOLD JUL 30, 2026
$899,000
E
4 beds3 baths2,500 sq ft
18 Pilgrim Dr, Port Jefferson, NY 11777
Listing by Jolie Powell Realty Inc
SOLD AUG 17, 2026
$790,000
F
4 beds2 baths2,222 sq ft
21 Laurita Gate, Port Jefferson, NY 11777
Listing by Real Broker NY LLC

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Earn from this home

Sell

$736,032

Est. take-home

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Est. cash available

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Market trends in 11766, NY

Last updated October 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

$499,999
2 beds2 baths1,272 sq ft
53 Rose Ln, Mount Sinai, NY 11766
Listing by Signature Premier Properties
$549,990
2 beds2 baths1,240 sq ft
74 Hearthside Dr, Mount Sinai, NY 11766
Listing by Howard Hanna Coach
$439,000
2 beds2 baths1,240 sq ft
9 Chippendale Dr, Mount Sinai, NY 11766
Listing by Signature Premier Properties
$1,350,000
3 beds2.5 baths1,970 sq ft
238 Shore Rd, Mount Sinai, NY 11766
Listing by Coldwell Banker American Homes
$599,000
2 beds2 baths1,820 sq ft
262 Pond Cir #262, Mount Sinai, NY 11766
Listing by Signature Premier Properties
3D WALKTHROUGH
$599,000
2 beds2 baths1,501 sq ft
41 Chippendale Dr, Mount Sinai, NY 11766
Listing by Manzoni Real Estate
$748,000
3 beds3.5 baths2,200 sq ft
137 Constantine Way, Mount Sinai, NY 11766
Listing by BH&G R E Realty Connect
$799,000
2 beds2 baths2,234 sq ft
93 Louden Loop, Mount Sinai, NY 11766
Listing by Douglas Elliman Real Estate
$925,000
3 beds2.5 baths2,362 sq ft
8 Hyanis Ct, Mount Sinai, NY 11766
Listing by BH&G R E Realty Connect
See all

Provided by Redfin

Sale history for 2 Frost Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$14,889

$600 + $3,400

$4,000

2025

$14,889 (+13.7%)

$600 + $3,400

$4,000

2024

$13,099 (−9.1%)

$600 + $3,670

$4,270

2023

$14,415 (+7.6%)

$600 + $3,670

$4,270

2022

$13,395

$600 + $3,670

$4,270

2021

$13,395 (−8.0%)

$600 + $3,670

$4,270

2020

$14,557 (+1.6%)

$600 + $3,670

$4,270

2019

$14,326 (+2.7%)

$600 + $3,670

$4,270

2018

$13,954 (+2.2%)

$600 + $3,670

$4,270

2017

$13,648 (−1.5%)

$600 + $3,670

$4,270

2016

$13,853 (+2.9%)

$600 + $3,670

$4,270

2015

$13,459 (+0.7%)

$600 + $3,670

$4,270

2014

$13,359 (+2.8%)

$600 + $3,670

$4,270

2013

$12,993 (+1.9%)

$600 + $3,670

$4,270

2012

$12,750 (+1.4%)

$600 + $3,670

$4,270

2011

$12,575 (+3.1%)

$600 + $3,670

$4,270

2010

$12,199 (+4.3%)

$600 + $3,670

$4,270

2009

$11,700

$600 + $3,900

$4,500

Tax history for 2 Frost Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$14,889

$600 + $3,400

$4,000

2025

$14,889 (+13.7%)

$600 + $3,400

$4,000

2024

$13,099 (−9.1%)

$600 + $3,670

$4,270

2023

$14,415 (+7.6%)

$600 + $3,670

$4,270

2022

$13,395

$600 + $3,670

$4,270

2021

$13,395 (−8.0%)

$600 + $3,670

$4,270

2020

$14,557 (+1.6%)

$600 + $3,670

$4,270

2019

$14,326 (+2.7%)

$600 + $3,670

$4,270

2018

$13,954 (+2.2%)

$600 + $3,670

$4,270

2017

$13,648 (−1.5%)

$600 + $3,670

$4,270

2016

$13,853 (+2.9%)

$600 + $3,670

$4,270

2015

$13,459 (+0.7%)

$600 + $3,670

$4,270

2014

$13,359 (+2.8%)

$600 + $3,670

$4,270

2013

$12,993 (+1.9%)

$600 + $3,670

$4,270

2012

$12,750 (+1.4%)

$600 + $3,670

$4,270

2011

$12,575 (+3.1%)

$600 + $3,670

$4,270

2010

$12,199 (+4.3%)

$600 + $3,670

$4,270

2009

$11,700

$600 + $3,900

$4,500

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

Property details

Exterior

Exterior Information
Building Style Type: Ranch

Property Information
Ground Floor Sq. Ft: 2,400
Building Sq. Ft: 2,448
Legal Description: MT SINAI HILLS 6858 SEC 1 8

Lot Information
# of Buildings: 1
Land Sq. Ft: 37,897
Legal Lot Number: 2
Legal Block Number: 0008
Municipality Name: BROOKHAVEN
Acres: 0.87
State Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: —
Sq. Ft.: 2,448
Stories: —
Lot Size: 0.87 acres
Style: Single Family Residential
Year Built: 1970
Year Renovated: —
County: Suffolk County
APN: 0200115000800002000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

K - 12
Preschool & daycare

Mount Sinai Elementary School

Public K-4 • Assigned • 0.8mi

6/10

Mount Sinai Middle School

Public 5-8 • Assigned • 0.8mi

6/10

Mount Sinai High School

Public 9-12 • Assigned • 0.6mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

10/10 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 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

$752,000 – $911,000

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New listings for sale in 11766

$499,999

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53 Rose Ln, Mount Sinai, NY 11766

$699 HOA • Garage • Community pool

Listing by Signature Premier Properties

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74 Hearthside Dr, Mount Sinai, NY 11766

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Listing by Howard Hanna Coach

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Eat in kitchen • $530 HOA • Garage

Listing by Signature Premier Properties

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3 beds2.5 baths1,970 sq ft

238 Shore Rd, Mount Sinai, NY 11766

Waterfront living • Private acres • Brick walkway

Listing by Coldwell Banker American Homes

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2 beds2 baths1,820 sq ft

262 Pond Cir #262, Mount Sinai, NY 11766

Private driveway • Private elevator • Full basement

Listing by Signature Premier Properties

3D WALKTHROUGH

$599,000

2 beds2 baths1,501 sq ft

41 Chippendale Dr, Mount Sinai, NY 11766

Two car driveway • Attached garage • Manicured lawn

Listing by Manzoni Real Estate

$748,000

3 beds3.5 baths2,200 sq ft

137 Constantine Way, Mount Sinai, NY 11766

Courtyard entry • Abundant cabinetry • Convenient pantry

Listing by BH&G R E Realty Connect

$799,000

2 beds2 baths2,234 sq ft

93 Louden Loop, Mount Sinai, NY 11766

All season sunroom • Paver patio • Indoor swimming pool

Listing by Douglas Elliman Real Estate

$925,000

3 beds2.5 baths2,362 sq ft

8 Hyanis Ct, Mount Sinai, NY 11766

Private cul-de-sac • Upstairs loft • Jacuzzi tub

Listing by BH&G R E Realty Connect

Home values near 2 Frost Valley Rd

Data from public records.

Address	Redfin Estimate
3 Frost Valley Road, Mount Sinai, NY - Beds \| - Baths \| 3022 Sq. Ft.	$1,270,446
1 Frost Valley Road, Mount Sinai, NY - Beds \| - Baths \| 2564 Sq. Ft.	$855,639
99 Crystal Brook Hollow Road, Mount Sinai, NY - Beds \| - Baths \| 4209 Sq. Ft.	$910,672
3 Snow Crest Court, Mount Sinai, NY - Beds \| - Baths \| 2710 Sq. Ft.	$863,332
111 Crystal Brook Hollow Road, Mount Sinai, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$781,367
50 Hillcrest Avenue, Port Jefferson, NY 3 Beds \| 3 Baths \| 2100 Sq. Ft.	$926,722
45 Hillcrest Avenue, Port Jefferson, NY 4 Beds \| 4 Baths \| 2679 Sq. Ft.	$819,362

Address	Redfin Estimate
8 Frost Valley Road, Mount Sinai, NY - Beds \| - Baths \| 3284 Sq. Ft.	$953,717
5 Frost Valley Road, Mount Sinai, NY 4 Beds \| 2.5 Baths \| 3038 Sq. Ft.	$1,294,514
4 Snow Crest Court, Mount Sinai, NY - Beds \| - Baths \| 2344 Sq. Ft.	$809,039
7 Snow Crest Court, Mount Sinai, NY 4 Beds \| 2.5 Baths \| 3000 Sq. Ft.	$941,396
107 Crystal Brook Hollow Road, Mount Sinai, NY 5 Beds \| 2.5 Baths \| 2942 Sq. Ft.	$854,817
46 Hillcrest Avenue, Port Jefferson, NY - Beds \| - Baths \| - Sq. Ft.	$782,689
97 Crystal Brook Hollow Road, Mount Sinai, NY - Beds \| - Baths \| 3097 Sq. Ft.	$711,777

Address	Redfin Estimate
6 Frost Valley Road, Mount Sinai, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$962,887
95 Crystal Brook Hollow Road, Mount Sinai, NY 5 Beds \| 3.5 Baths \| 2424 Sq. Ft.	$915,248
5 Snow Crest Court, Mount Sinai, NY - Beds \| - Baths \| 3210 Sq. Ft.	$758,731
109 Crystal Brook Hollow Road, Mount Sinai, NY - Beds \| - Baths \| 2942 Sq. Ft.	$730,954
6 Snow Crest Court, Mount Sinai, NY - Beds \| - Baths \| 3508 Sq. Ft.	$1,097,308
47 Hillcrest Avenue, Port Jefferson, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$837,289
2 Snow Crest Court, Mount Sinai, NY - Beds \| - Baths \| 2512 Sq. Ft.	$963,914

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About this home

Redfin Estimate

Earn from this home

Market trends in 11766, NY

Sale history for 2 Frost Valley Rd

Tax history for 2 Frost Valley 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 2 Frost Valley Rd

More real estate resources