Off market aug 2025 for $814K

$1,012,200

Est. refi paymentEst. refi $5,447/mo

•

3,200

sq ft

9 Mount Grey Rd, Stony Brook, NY 11790

About this home

Award winning Three Village School District offers this beautifully maintained farm ranch north of 25A in Stony Brook… Which features five bedrooms, three bathrooms and enough room for the whole family! Country dining room, sunken den and bright updated kitchen add to the comfort of this home which is situated on a natural parklike 3/4 acres of unlimited possibilities. Large center island in the kitchen is a welcoming gathering spot for friends and family. Watch winter sunsets from the large picture window in your living room that also offers a fireplace and built-in shelves! Walk to West Meadow Beach and the Old Field Club in the summertime. Enjoy private beach rights and social gatherings through your membership in the Sound View Homeowners Association of 68 homes. Other features include: - Central AC - Gleaming hardwood floors - recent upgrades of roof, appliances, boiler, water heater - full basement with separate outside entrance - bluestone patio - attached 2 car garage Plus so much more! Comfort, serenity, and efficiency await you. Come see before it is too late!

Single-familyProperty Type

1955Year Built

0.8 acresLot Size

$316Est. Price/Sq.Ft.

2 garage spacesParking

Listing by Donna Barilla • Signature Premier Properties

Contact: 631-751-2111

Bought with Jiali Jia • Modern Realty and Management

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #851105

Redfin Estimate

$1,012,200

$198K since sold in August 2025$23K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.9% higher than the average sale price ($965K) of 6 comparable homes.

SOLD NOV 15, 2022
$707,616
A
5 beds3.5 baths— sq ft
17 Quaker Path, Stony Brook, NY 11790
Listing by VYLLA Home
SOLD OCT 1, 2026
$1,057,000
B
5 beds2.5 baths3,500 sq ft
47 Lubber St, Stony Brook, NY 11790
Listing by Douglas Elliman Real Estate
SOLD AUG 28, 2026
$1,130,000
C
5 beds3.5 baths3,189 sq ft
8 Brandywine Dr, Setauket, NY 11733
Listing by Howard Hanna Coach
SOLD MAR 9, 2026
$1,013,000
D
5 beds3.5 baths3,700 sq ft
6 Settlers Way, Setauket, NY 11733
Listing by Douglas Elliman Real Estate
SOLD JAN 8, 2026
$999,999
E
4 beds3 baths2,900 sq ft
14 Highwood Rd, Setauket, NY 11733
Listing by Signature Premier Properties
SOLD MAY 28, 2026
$881,800
F
4 beds3.5 baths2,585 sq ft
8 Old Wood Rd, Stony Brook, NY 11790
Listing by Realty Connect USA L I Inc

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Earn from this home

Sell

$315,015

Est. take-home

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Refinance

Est. cash available

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Rent

$4,124/mo

Redfin rental estimate

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Market trends in 11790, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

106.9%

+0.5% MoM

Median sale price

$860K

$20K MoM

Avg. days on market

18d

2 days MoM

Recently sold homes

3 MoM

New listings for sale

NEW 2 HRS AGO
$779,000
2 beds2 baths1,574 sq ft
16 Oak Run, Stony Brook, NY 11790
Listing by H & G Realty New York
COMING SOON
$749,000
3 beds2 baths1,800 sq ft
103 Sycamore Cir, Stony Brook, NY 11790
Listing by Howard Hanna Coach
OPEN FRI, 4PM TO 6PM
$529,000
2 beds2 baths1,100 sq ft
187 Knolls Dr, Stony Brook, NY 11790
Listing by Daniel Gale Sothebys Intl Rlty
$880,000
5 beds4 baths3,272 sq ft
1147 N Country Rd, Stony Brook, NY 11790
Listing by North Star Realty Assoc LLC
$799,999
5 beds4 baths2,800 sq ft
18 University Heights Dr, Stony Brook, NY 11790
Listing by BH&G R E Realty Connect
$759,000
4 beds2.5 baths2,200 sq ft
50 Bonnie Ln, Stony Brook, NY 11790
Listing by BH&G R E Realty Connect
$749,999
3 beds2 baths1,850 sq ft
25 Stratton Ln, Stony Brook, NY 11790
Listing by BH&G R E Realty Connect
See all

Provided by Redfin

Sale history for 9 Mount Grey Rd

Year

Property tax

Land + Additions

Assessment*

2026

$18,364

$400 + $4,070

$4,470

2025

$18,364 (+4.3%)

$400 + $4,070

$4,470

2024

$17,607 (+8.0%)

$400 + $4,070

$4,470

2023

$16,301 (−10.8%)

$400 + $4,070

$4,470

2022

$18,272

$400 + $4,070

$4,470

2021

$18,272 (+1.1%)

$400 + $4,400

$4,800

2020

$18,071 (+2.0%)

$400 + $4,400

$4,800

2019

$17,717 (+3.2%)

$400 + $4,400

$4,800

2018

$17,171 (+2.1%)

$400 + $4,400

$4,800

2017

$16,822 (+1.5%)

$400 + $4,400

$4,800

2016

$16,581 (+7.3%)

$400 + $4,400

$4,800

2015

$15,452 (+2.3%)

$400 + $4,400

$4,800

2014

$15,107 (+3.2%)

$400 + $4,400

$4,800

2013

$14,632 (+2.1%)

$400 + $4,400

$4,800

2012

$14,335 (+3.4%)

$400 + $4,400

$4,800

2011

$13,862 (+2.4%)

$400 + $4,400

$4,800

2010

$13,535 (+3.0%)

$400 + $4,400

$4,800

2009

$13,140

$400 + $4,400

$4,800

Tax history for 9 Mount Grey Rd

Year

Property tax

Land + Additions

Assessment*

2026

$18,364

$400 + $4,070

$4,470

2025

$18,364 (+4.3%)

$400 + $4,070

$4,470

2024

$17,607 (+8.0%)

$400 + $4,070

$4,470

2023

$16,301 (−10.8%)

$400 + $4,070

$4,470

2022

$18,272

$400 + $4,070

$4,470

2021

$18,272 (+1.1%)

$400 + $4,400

$4,800

2020

$18,071 (+2.0%)

$400 + $4,400

$4,800

2019

$17,717 (+3.2%)

$400 + $4,400

$4,800

2018

$17,171 (+2.1%)

$400 + $4,400

$4,800

2017

$16,822 (+1.5%)

$400 + $4,400

$4,800

2016

$16,581 (+7.3%)

$400 + $4,400

$4,800

2015

$15,452 (+2.3%)

$400 + $4,400

$4,800

2014

$15,107 (+3.2%)

$400 + $4,400

$4,800

2013

$14,632 (+2.1%)

$400 + $4,400

$4,800

2012

$14,335 (+3.4%)

$400 + $4,400

$4,800

2011

$13,862 (+2.4%)

$400 + $4,400

$4,800

2010

$13,535 (+3.0%)

$400 + $4,400

$4,800

2009

$13,140

$400 + $4,400

$4,800

*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

0.8 Acres

Year renovated

—

Sq. Ft.

—

Year built

—

Style

Single Family Residential

County

Suffolk County

APN

0200108000400014000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 20, 2026.

Property details

Parking

Parking Information
Carport YN: No
Carport Spaces: 6
Parking Features: Driveway

Garage Information
Garage Spaces: 2
Has Garage

Interior

Virtual Tour Information

Fireplace Information
Has Fireplace
Fireplaces Total: 1
Fireplace Features: Masonry, Wood Burning

Heating & Cooling
Cooling: Central Air
Heating: Baseboard, Oil, Radiant

Interior Features
Interior Features: First Floor Bedroom,First Floor Full Bath,Ceiling Fan(s),Crown Molding,Eat-in Kitchen,Entrance Foyer,Formal Dining,Kitchen Island,Master Downstairs,Open Floorplan,Open Kitchen,Soaking Tub
Window Features: Double Pane Windows, Screens
Laundry Features: Electric Dryer Hookup, In Basement
Appliances: Dishwasher, Dryer, Electric Cooktop, Freezer, Microwave, Oven, Refrigerator, Washer
Flooring: Hardwood, Laminate, Tile

Room Information
Basement YN: Yes
Attic: Crawl
Rooms Total: 9
Basement: Finished, Full

Bathroom Information
Bathrooms Full: 3

Exterior

Exterior Features
Construction Materials: Frame, Vinyl Siding
Foundation Details: Block
Waterfront YN: No

Property Information
Living Area Source: Plans
Living Area (Sq. Ft.): 3200.00
Property Sub Type: Single Family Residence

Financial

Tax Information
Tax Year: 2024
Tax Source: Other
Tax Annual Amount: $21,276.89

Financial Information
Buyer Financing: Conventional

Utilities

Utility Information
Sewer: Cesspool
Utilities: Trash Collection Public

Location

School Information
Elementary School: Setauket Elementary School
Elementary School District: Three Village
Middle Or Junior School: Paul J Gelinas Junior High School
Middle Or Junior School District: Three Village
High School: Ward Melville Senior High School
High School District: Three Village

Location Information
County Or Parish: Suffolk County

Public facts

Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 0.8 acres
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: Suffolk County
APN: 0200108000400014000

Home facts updated by county records on Oct 19, 2026

Around this home

Schools

Setauket Elementary School

Public PreK-6 • Assigned • 1.2mi

6/10

Paul J Gelinas Junior High School

Public 7-9 • Assigned • 0.5mi

7/10

Ward Melville Senior High School

Public 9-12 • Assigned • 3.4mi

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

8/10 Wind Factor

80% chance of strong winds in next 30 years

4/10 Air Factor

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

Provided by First Street

Historical weather

Stony Brook, NY • 11790

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

$962,000 – $1.17M

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New listings for sale in 11790

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Listing by BH&G R E Realty Connect

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Listing by BH&G R E Realty Connect

Home values near 9 Mount Grey Rd

Data from public records.

Address	Redfin Estimate
11 Mount Grey Road, Stony Brook, NY 3 Beds \| 2.5 Baths \| - Sq. Ft.	$912,198
8 Mount Grey Road, Stony Brook, NY 3 Beds \| 1 Baths \| - Sq. Ft.	$758,158

Address	Redfin Estimate
6 Mount Grey Road, Stony Brook, NY 4 Beds \| 3.5 Baths \| 2763 Sq. Ft.	$947,203
7 Mount Grey Road, Stony Brook, NY - Beds \| - Baths \| 1574 Sq. Ft.	$781,470

Address	Redfin Estimate
12 Mount Grey Road, Stony Brook, NY - Beds \| - Baths \| 971 Sq. Ft.	$926,871
10 Mount Grey Road, Stony Brook, NY 4 Beds \| 3.5 Baths \| - Sq. Ft.	$1,113,762

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2025. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 11790, NY

Sale history for 9 Mount Grey Rd

Tax history for 9 Mount Grey Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11790

Home values near 9 Mount Grey Rd

More real estate resources