Google street view image for 29 Thornewood Rd, Armonk, NY 10504

Off market apr 1989 for $390K

$1,086,488

Est. refi paymentEst. refi $3,056/mo

—

•

2 ba

•

1,936

sq ft

29 Thornewood Rd, Armonk, NY 10504

About this home

29 Thornewood Rd is a 1,936 square foot house on a 1.71 acre lot with 2 bathrooms. - it last sold on April 21, 1989 for $390,000. Based on Redfin's Armonk data, we estimate the home's value is $1,086,488.

Single-familyProperty Type

1960Year Built

1.71 acresLot Size

$561Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,086,488

$696K since sold in April 1989$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 31.9% lower than the average sale price ($1.59M) of 6 comparable homes.

SOLD AUG 25, 2026
$1,750,000
A
4 beds2.5 baths2,839 sq ft
40 Windmill Rd, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD MAY 12, 2026
$1,443,600
B
3 beds2 baths2,045 sq ft
3 N Lake Rd, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD SEP 4, 2026
$1,600,000
C
4 beds2.5 baths2,865 sq ft
6 Birch Grove Dr, Armonk, NY 10504
Listing by William Raveis-New York, LLC
SOLD SEP 10, 2026
$1,900,000
D
4 beds3 baths3,594 sq ft
53 Windmill Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
SOLD JUN 24, 2026
$1,435,000
E
3 beds2.5 baths2,414 sq ft
20 Faraway Rd, Armonk, NY 10504
Listing by Compass Greater NY, LLC
SOLD DEC 17, 2025
$1,440,000
F
5 beds3 baths2,747 sq ft
18 Fox Ridge Rd, Armonk, NY 10504
Listing by Compass Greater NY, LLC

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$1,022,039

Est. take-home

List your home with Redfin and save $10,865

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 10504, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

105.9%

+0.1% MoM

Median sale price

$1.9M

$153K MoM

Avg. days on market

21d

4 days MoM

Recently sold homes

4 MoM

New listings for sale

$2,495,000
4 beds4.5 baths5,072 sq ft
13 Sniffen Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
OPEN SUN, 1PM TO 4PM
$2,250,000
5 beds4 baths4,620 sq ft
4 Stone Hollow Way, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
$3,895,000
6 beds6.5 baths4,653 sq ft
9 Cole Dr, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
$2,400,000
4 beds5.5 baths5,139 sq ft
10 Cider Mill Cir, Armonk, NY 10504
Listing by William Raveis Real Estate
VIDEO TOUR
$2,995,000
5 beds6.5 baths7,141 sq ft
37 Sarles St, Armonk, NY 10504
Listing by Serhant LLC
$1,499,000
3 beds2.5 baths3,544 sq ft
115 Whippoorwill Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
$5,400,000
7 beds8.5 baths11,521 sq ft
2 Hollow Ridge Rd, Armonk, NY 10504
Listing by Compass Greater NY, LLC
See all

Provided by Redfin

Sale history for 29 Thornewood Rd

Year

Property tax

Land + Additions

Assessment*

2026

$17,131 (+1.8%)

$3,700 + $10,400

$14,100

2025

$16,820 (−1.5%)

$3,700 + $10,400

$14,100

2024

$17,073 (+4.0%)

$3,700 + $10,400

$14,100

2023

$16,414 (−0.2%)

$3,700 + $10,400

$14,100

2022

$16,443 (+0.9%)

$3,700 + $10,400

$14,100

2021

$16,298 (−0.3%)

$3,700 + $10,400

$14,100

2020

$16,350

$3,700 + $10,400

$14,100

2019

$16,348

$3,700 + $10,400

$14,100

2018

$3,700 + $10,400

$14,100

2017

$3,700 + $10,400

$14,100

2016

$3,700 + $10,400

$14,100

2014

$3,700 + $10,400

$14,100

2013

$3,700 + $10,400

$14,100

2012

$3,700 + $10,400

$14,100

2011

$3,700 + $10,400

$14,100

2010

$3,700 + $10,400

$14,100

2009

$3,700 + $10,400

$14,100

2008

$3,700 + $10,400

$14,100

Tax history for 29 Thornewood Rd

Year

Property tax

Land + Additions

Assessment*

2026

$17,131 (+1.8%)

$3,700 + $10,400

$14,100

2025

$16,820 (−1.5%)

$3,700 + $10,400

$14,100

2024

$17,073 (+4.0%)

$3,700 + $10,400

$14,100

2023

$16,414 (−0.2%)

$3,700 + $10,400

$14,100

2022

$16,443 (+0.9%)

$3,700 + $10,400

$14,100

2021

$16,298 (−0.3%)

$3,700 + $10,400

$14,100

2020

$16,350

$3,700 + $10,400

$14,100

2019

$16,348

$3,700 + $10,400

$14,100

2018

$3,700 + $10,400

$14,100

2017

$3,700 + $10,400

$14,100

2016

$3,700 + $10,400

$14,100

2014

$3,700 + $10,400

$14,100

2013

$3,700 + $10,400

$14,100

2012

$3,700 + $10,400

$14,100

2011

$3,700 + $10,400

$14,100

2010

$3,700 + $10,400

$14,100

2009

$3,700 + $10,400

$14,100

2008

$3,700 + $10,400

$14,100

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

Property details

Interior

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Heating Fuel Type: Oil

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Split Level
Exterior Wall: Synthetic Panel/Siding

Property Information
Subdivision Name: TOWN/NORTH CASTLE
Living Sq. Ft: 1,936
Ground Floor Sq. Ft: 1,936
Building Sq. Ft: 1,936
Legal Description: M6G

Lot Information
# of Buildings: 1
Land Sq. Ft: 74,354
Legal Lot Number: 77
Legal Block Number: 1
School Tax District: BYRAM HILLS
Municipality Name: NORTH CASTLE
Acres: 1.7069
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: 2.0
Sq. Ft.: 1,936
Stories: —
Lot Size: 1.71 acres
Style: Single Family Residential
Year Built: 1960
Year Renovated: —
County: Westchester County
APN: 553800A10200100010770000000

Home facts updated by county records on Sep 25, 2026

Around this home

Schools

Coman Hill School

Public K-2 • Assigned • 1.1mi

H C Crittenden Middle School

Public 6-8 • Assigned • 2.8mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 1.8mi

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

3/10 Fire Factor

0.15% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 98° expected this year, 14 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 6 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

$1.03M – $1.25M

Reach more buyers when you sell with Redfin. Save up to $10,865 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

NEW 7 HRS AGO

$899,000

3 beds1 bath1,400 sq ft

225 Succabone Rd, Bedford Corners, NY 10549

Listing by Coldwell Banker Realty

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

Listing by Sotheby's International Realty

NEW CONSTRUCTION

$3,075,000

4 beds4 baths5,641 sq ft

32 Orchard Dr, Armonk, NY 10504

Listing by Compass Greater NY, LLC

$2,400,000

4 beds5.5 baths5,139 sq ft

10 Cider Mill Cir, Armonk, NY 10504

Listing by William Raveis Real Estate

$2,350,000

6 beds6 baths8,445 sq ft

382 Pine Brook Rd, Bedford, NY 10506

Listing by Rising Star Realty

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

New listings for sale in 10504

$2,495,000

4 beds4.5 baths5,072 sq ft

13 Sniffen Rd, Armonk, NY 10504

Listing by William Raveis Real Estate

OPEN SUN, 1PM TO 4PM

$2,250,000

5 beds4 baths4,620 sq ft

4 Stone Hollow Way, Armonk, NY 10504

Listing by Houlihan Lawrence Inc.

$3,895,000

6 beds6.5 baths4,653 sq ft

9 Cole Dr, Armonk, NY 10504

Listing by Houlihan Lawrence Inc.

$2,400,000

4 beds5.5 baths5,139 sq ft

10 Cider Mill Cir, Armonk, NY 10504

Listing by William Raveis Real Estate

VIDEO TOUR

$2,995,000

5 beds6.5 baths7,141 sq ft

37 Sarles St, Armonk, NY 10504

Listing by Serhant LLC

$1,499,000

3 beds2.5 baths3,544 sq ft

115 Whippoorwill Rd, Armonk, NY 10504

Listing by William Raveis Real Estate

$5,400,000

7 beds8.5 baths11,521 sq ft

2 Hollow Ridge Rd, Armonk, NY 10504

Listing by Compass Greater NY, LLC

Home values near 29 Thornewood Rd

Data from public records.

Address	Redfin Estimate
19 Thornewood Rd, Armonk, NY - Beds \| 4 Baths \| 4789 Sq. Ft.	$1,421,676
24 Thornewood Rd, Armonk, NY - Beds \| 2 Baths \| 1999 Sq. Ft.	$1,126,073

Address	Redfin Estimate
35 Thornewood Rd, Armonk, NY - Beds \| 3 Baths \| 3243 Sq. Ft.	$1,864,964
28 Thornewood Rd, Armonk, NY - Beds \| 2 Baths \| 1768 Sq. Ft.	$1,110,146

Address	Redfin Estimate
23 Thornewood Rd, Armonk, NY 3 Beds \| 3.5 Baths \| 2700 Sq. Ft.	$1,552,454
25 Thornewood Rd, Armonk, NY 5 Beds \| 4.5 Baths \| 5200 Sq. Ft.	$3,407,336

More real estate resources

Minor Civil Divisions
Neighborhoods
Cities
Zip Codes
Popular Searches

Wilton homes for sale
Fairfield homes for sale
Weehawken Township homes for sale
Mahwah Township homes for sale
New Canaan homes for sale

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

Mid Country West homes for sale
Bedford homes for sale
North Stamford homes for sale
Purchase homes for sale
West Harrison homes for sale

10570 homes for sale
06830 homes for sale
06903 homes for sale
10549 homes for sale
10604 homes for sale

Houses for rent in North Castle	Agents near me	White Plains, NY homes for sale	North Castle Housing Market
Houses for sale near me	New York, NY homes for sale	Yonkers, NY homes for sale
Land for sale near me	Manhattan, NY homes for sale	Scarsdale, NY homes for sale
Open Houses near me	Rochester, NY homes for sale	North Castle Property Records
Condos for sale near me	Buffalo, NY homes for sale	NY New Listings

Greenwich homes for sale
Manhattan homes for sale
New York homes for sale