Google street view image for 3 Thornewood Rd, Armonk, NY 10504

Off market aug 1983 for $375K

$1,885,046

Est. refi paymentEst. refi $2,887/mo

—

•

3 ba

•

3,784

sq ft

3 Thornewood Rd, Armonk, NY 10504

About this home

3 Thornewood Rd is a 3,784 square foot house on a 1.6 acre lot with 3 bathrooms. - it last sold on August 01, 1983 for $375,000. Based on Redfin's Armonk data, we estimate the home's value is $1,885,046.

Single-familyProperty Type

1965Year Built

1.6 acresLot Size

$498Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,885,046

$1.5M since sold in August 1983$25K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.4% higher than the average sale price ($1.77M) of 6 comparable homes.

SOLD SEP 10, 2026
$1,900,000
A
4 beds3 baths3,594 sq ft
53 Windmill Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
SOLD MAY 26, 2026
$1,020,000
B
4 beds3.5 baths3,652 sq ft
2 Brookwood Rd, Bedford, NY 10506
Listing by Julia B Fee Sothebys Int. Rlty
SOLD AUG 25, 2026
$1,750,000
C
4 beds2.5 baths2,839 sq ft
40 Windmill Rd, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD SEP 4, 2026
$1,600,000
D
4 beds2.5 baths2,865 sq ft
6 Birch Grove Dr, Armonk, NY 10504
Listing by William Raveis-New York, LLC
SOLD JUN 26, 2026
$1,800,000
E
4 beds4 baths3,353 sq ft
1 Fox Ridge Rd, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD AUG 4, 2026
$2,555,000
F
5 beds3.5 baths4,155 sq ft
1 Redbrooke Pl, Armonk, NY 10504
Listing by Julia B Fee Sothebys Int. Rlty

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Earn from this home

Sell

$1,774,760

Est. take-home

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Est. cash available

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Market trends in 10504, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

107.0%

+1.0% MoM

Median sale price

$2.1M

$209K MoM

Avg. days on market

23d

2 days MoM

Recently sold homes

6 MoM

New listings for sale

OPEN SUN, 11:30AM TO 1:30PM
$2,495,000
3 beds4 baths4,120 sq ft
1 Fox Ridge Ct, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
$1,375,000
4 beds2.5 baths3,164 sq ft
32 Sarles St, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
$1,585,000
3 beds2.5 baths3,094 sq ft
10 Skyview Dr, Armonk, NY 10504
Listing by Julia B Fee Sothebys Int. Rlty
$895,000
4 beds2 baths3,059 sq ft
22 Elizabeth Pl, Armonk, NY 10504
Listing by Owner Entry.com
See all

Provided by Redfin

Sale history for 3 Thornewood Rd

Year

Property tax

Land + Additions

Assessment*

2026

$29,340 (+1.9%)

$3,500 + $21,500

$25,000

2025

$28,790 (+47.3%)

$3,500 + $21,500

$25,000

2024

$19,541 (−30.3%)

$3,500 + $21,500

$25,000

2023

$28,055 (+5.7%)

$3,500 + $21,500

$25,000

2022

$26,533 (+1.2%)

$3,500 + $21,500

$25,000

2021

$26,219 (−0.3%)

$3,500 + $21,500

$25,000

2020

$26,302 (+0.1%)

$3,500 + $21,500

$25,000

2019

$26,276

$3,500 + $21,500

$25,000

2018

$3,500 + $21,500

$25,000

2017

$3,500 + $21,500

$25,000

2016

$3,500 + $21,500

$25,000

2014

$3,500 + $21,500

$25,000

2013

$3,500 + $21,500

$25,000

2012

$3,500 + $21,500

$25,000

2011

$3,500 + $21,500

$25,000

2010

$3,500 + $21,500

$25,000

2009

$3,500 + $21,500

$25,000

2008

$3,500 + $21,500

$25,000

Tax history for 3 Thornewood Rd

Year

Property tax

Land + Additions

Assessment*

2026

$29,340 (+1.9%)

$3,500 + $21,500

$25,000

2025

$28,790 (+47.3%)

$3,500 + $21,500

$25,000

2024

$19,541 (−30.3%)

$3,500 + $21,500

$25,000

2023

$28,055 (+5.7%)

$3,500 + $21,500

$25,000

2022

$26,533 (+1.2%)

$3,500 + $21,500

$25,000

2021

$26,219 (−0.3%)

$3,500 + $21,500

$25,000

2020

$26,302 (+0.1%)

$3,500 + $21,500

$25,000

2019

$26,276

$3,500 + $21,500

$25,000

2018

$3,500 + $21,500

$25,000

2017

$3,500 + $21,500

$25,000

2016

$3,500 + $21,500

$25,000

2014

$3,500 + $21,500

$25,000

2013

$3,500 + $21,500

$25,000

2012

$3,500 + $21,500

$25,000

2011

$3,500 + $21,500

$25,000

2010

$3,500 + $21,500

$25,000

2009

$3,500 + $21,500

$25,000

2008

$3,500 + $21,500

$25,000

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

Property details

Interior

Basement Information
Basement Sq. Ft: 345
Basement Type: Partial

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Air Conditioning Type: Central
Heating Fuel Type: Oil

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Colonial
Exterior Wall: Frame Wood

Property Information
Living Sq. Ft: 3,784
Ground Floor Sq. Ft: 3,439
Building Sq. Ft: 4,284
Legal Description: M6C

Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 500
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 69,729
Legal Lot Number: 25
Legal Block Number: 4
School Tax District: BYRAM HILLS
Municipality Name: NORTH CASTLE
Acres: 1.6008
Zoning Code: 02
State Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Private
Water Service Type: Commercial

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: 3.0
Sq. Ft.: 3,784
Stories: —
Lot Size: 1.6 acres
Style: Single Family Residential
Year Built: 1965
Year Renovated: —
County: Westchester County
APN: 553800A10100200040250000000

Home facts updated by county records on Sep 25, 2026

Around this home

Schools

Coman Hill School

Public K-2 • Assigned • 0.7mi

H C Crittenden Middle School

Public 6-8 • Assigned • 2.3mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 1.3mi

9/10

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

4/10 Heat Factor

7 days above 98° expected this year, 13 days in 30 years

6/10 Wind Factor

27% 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

Armonk, NY • 10504

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

$1.79M – $2.17M

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Nearby similar homes

$2,495,000

4 beds4.5 baths5,072 sq ft

13 Sniffen Rd, Armonk, NY 10504

Covered front porch • Chef's kitchen • Window-lined sunroom

Listing by William Raveis Real Estate

NEW CONSTRUCTION

$3,075,000

4 beds4 baths5,641 sq ft

32 Orchard Dr, Armonk, NY 10504

New development • Park like property • Estate property

Listing by Compass Greater NY, LLC

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

24hr security • Grand foyer • Dual living rooms

Listing by Sotheby's International Realty

$1,295,000

3 beds2.5 baths3,544 sq ft

115 Whippoorwill Rd, Armonk, NY 10504

Open floor plan • Large fireplace • Primary ensuite

Listing by William Raveis Real Estate

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

Gated community • 24hr security • Park-like acres

FOR SALE BY OWNER

$1,799,000

5 beds3 baths— sq ft

56 Quarry Ln, Bedford, NY 10506

Wooded lot • Cul de sac location • Double vanity

New listings for sale in 10504

OPEN SUN, 11:30AM TO 1:30PM

$2,495,000

3 beds4 baths4,120 sq ft

1 Fox Ridge Ct, Armonk, NY 10504

Landscaped acres • Gunite pool • Fully fenced yard

Listing by Houlihan Lawrence Inc.

$1,375,000

4 beds2.5 baths3,164 sq ft

32 Sarles St, Armonk, NY 10504

Finished lower level • Solar panels • Wiring for generator

Listing by Houlihan Lawrence Inc.

$1,585,000

3 beds2.5 baths3,094 sq ft

10 Skyview Dr, Armonk, NY 10504

Flexible layout • Remodeled kitchen • Updated primary bath

Listing by Julia B Fee Sothebys Int. Rlty

$895,000

4 beds2 baths3,059 sq ft

22 Elizabeth Pl, Armonk, NY 10504

Artist studio spaces • Skylights • Spiral staircase

Listing by Owner Entry.com

Home values near 3 Thornewood Rd

Data from public records.

Address	Redfin Estimate
10 Thornewood Road, Armonk, NY 3 Beds \| 3 Baths \| 2757 Sq. Ft.	$1,845,912
11 Thornewood Road, Armonk, NY 4 Beds \| 4.5 Baths \| 5903 Sq. Ft.	—

Address	Redfin Estimate
6 Thornewood Road, Armonk, NY 4 Beds \| 4.5 Baths \| 5153 Sq. Ft.	$2,638,249
12 Thornewood Road, Armonk, NY 4 Beds \| 2.5 Baths \| 3024 Sq. Ft.	$1,648,112

Address	Redfin Estimate
13 Thornewood Road, Armonk, NY 4 Beds \| 2.5 Baths \| 3591 Sq. Ft.	$1,874,510
5 Thornewood Road, Armonk, NY - Beds \| 3 Baths \| 5053 Sq. Ft.	$2,232,989

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 10504, NY

Sale history for 3 Thornewood Rd

Tax history for 3 Thornewood Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 10504

Home values near 3 Thornewood Rd

More real estate resources