Off market apr 2017 for $1.3M

$1,892,287

Est. refi paymentEst. refi $10,382/mo

•

2,670

sq ft

27 Middle Patent Rd, Armonk, NY 10504

About this home

Less than one hour from New York City, this serene contemporary retreat is nestled in a verdant landscape with beautiful views over Cobamong Lake. The three bedroom, two full and one half bath house was designed by Chia-Ming Sze for a founder of the World Health Organization. Built on Feng Shui principles, the house is situated on 7+ totally private acres surrounded by an enclave of multimillion dollar properties. The open interior flow of light and space, combined with the sprawling exterior mahogany deck, offers a mindful and relaxing setting. Expansive windows unite the indoor and outdoor environments seamlessly, creating an atmosphere of harmony and peacefulness. A truly unique opportunity. 227 sqft Den in the process of obtaining the Certificate of Occupancy and is included in the square footage. Additional Information: HeatingFuel:Oil Above Ground,ParkingFeatures:2 Car Attached,

Single-familyProperty Type

1965Year Built

7.24 acresLot Size

$709Est. Price/Sq.Ft.

2 spacesParking

Listing by Jeanne Looney • William Raveis Real Estate

Listing by Claudia Costa • William Raveis Real Estate

Bought with Kathleen Tompkins • Houlihan Lawrence Inc.

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #H4616661

Redfin Estimate

$1,892,287

$567K since sold in April 2017$4,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 32.8% higher than the average sale price ($1.42M) of 6 comparable homes.

SOLD AUG 21, 2026
$1,200,000
A
4 beds3 baths2,178 sq ft
95 Hickory Kingdom Rd, Bedford, NY 10506
Listing by Julia B Fee Sothebys Int. Rlty
SOLD SEP 4, 2026
$1,600,000
B
4 beds2.5 baths2,865 sq ft
6 Birch Grove Dr, Armonk, NY 10504
Listing by William Raveis-New York, LLC
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 MAY 29, 2026
$914,114
D
3 beds3 baths3,012 sq ft
513 Bedford Rd, Armonk, NY 10504
Listing by RE/MAX Distinguished Hms.&Prop
SOLD AUG 19, 2026
$1,650,000
E
3 beds3 baths3,149 sq ft
143 E Middle Patent Rd, Bedford, NY 10506
Listing by Douglas Elliman Real Estate
SOLD JUN 24, 2026
$1,435,000
F
3 beds2.5 baths2,414 sq ft
20 Faraway 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

$934,585

Est. take-home

List your home with Redfin and save $18,923

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,550/mo

Redfin rental estimate

List your home for rent

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

NEW 1 DAY AGO
$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
OPEN TODAY, 11AM TO 12:30PM
$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 27 Middle Patent Rd

Date

Event

Price

OneKey® MLS as Distributed by MLS Grid #H4616661

Apr 20, 2017

Sold

$1,325,000

$496/sq ft

Feb 8, 2017

Contingent

—

Jan 9, 2017

Relisted

—

Jan 1, 2017

Listing Removed

—

Nov 1, 2016

Relisted

—

Nov 1, 2016

Listing Removed

—

Oct 13, 2016

Price Changed

$1,199,000

$449/sq ft

Sep 15, 2016

Price Changed

$1,295,000

$485/sq ft

Apr 25, 2016

Listed

$1,375,000

$515/sq ft

OneKey® MLS as Distributed by MLS Grid #H4524984

Jan 8, 2016

Listing Removed

—

Jun 1, 2015

Listed

$1,495,000

$560/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$27,778 (+2.0%)

$3,700 + $21,100

$24,800

2025

$27,233 (−1.6%)

$3,700 + $21,100

$24,800

2024

$27,664 (+4.4%)

$3,700 + $21,100

$24,800

2023

$26,487 (+2.4%)

$3,700 + $21,100

$24,800

2022

$25,855 (+1.5%)

$3,700 + $21,100

$24,800

2021

$25,469 (−0.3%)

$3,700 + $21,100

$24,800

2020

$25,540 (+13.7%)

$3,700 + $21,100

$24,800

2019

$22,461

$3,700 + $21,100

$24,800

2018

$3,700 + $18,100

$21,800

2017

$3,700 + $21,100

$24,800

2016

$3,700 + $18,100

$21,800

2014

$3,700 + $18,100

$21,800

2013

$3,700 + $18,100

$21,800

2012

$3,700 + $19,100

$22,800

2011

$3,700 + $19,100

$22,800

2010

$3,700 + $19,100

$22,800

2009

$3,700 + $19,100

$22,800

2008

$3,700 + $19,100

$22,800

Tax history for 27 Middle Patent Rd

Year

Property tax

Land + Additions

Assessment*

2026

$27,778 (+2.0%)

$3,700 + $21,100

$24,800

2025

$27,233 (−1.6%)

$3,700 + $21,100

$24,800

2024

$27,664 (+4.4%)

$3,700 + $21,100

$24,800

2023

$26,487 (+2.4%)

$3,700 + $21,100

$24,800

2022

$25,855 (+1.5%)

$3,700 + $21,100

$24,800

2021

$25,469 (−0.3%)

$3,700 + $21,100

$24,800

2020

$25,540 (+13.7%)

$3,700 + $21,100

$24,800

2019

$22,461

$3,700 + $21,100

$24,800

2018

$3,700 + $18,100

$21,800

2017

$3,700 + $21,100

$24,800

2016

$3,700 + $18,100

$21,800

2014

$3,700 + $18,100

$21,800

2013

$3,700 + $18,100

$21,800

2012

$3,700 + $19,100

$22,800

2011

$3,700 + $19,100

$22,800

2010

$3,700 + $19,100

$22,800

2009

$3,700 + $19,100

$22,800

2008

$3,700 + $19,100

$22,800

*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

6.63 Acres

Year renovated

—

Sq. Ft.

2,688

Year built

1965

Style

Single Family Residential

County

Westchester County

APN

553800A10200100010010000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 25, 2026.

Property details

Parking

Parking Information
Parking Total: 2
Parking Features: Attached

Interior

Virtual Tour Information

Fireplace Information
Has Fireplace
Fireplaces Total: 1

Heating & Cooling
Cooling: None
Heating: Baseboard, Hot Water, Oil

Interior Features
Interior Features: Cathedral Ceiling(s),Entrance Foyer,Formal Dining,Primary Bathroom,Walk-In Closet(s)
Appliances: Oil Water Heater
Flooring: Hardwood
Levels: Two
Patio And Porch Features: Deck

Room Information
Basement YN: Yes
Attic: None
Rooms Total: 7
Basement: Partial, Unfinished

Bathroom Information
Bathrooms Full: 2
Bathrooms Half: 1

Exterior

Exterior Features
Exterior Features: Balcony
Construction Materials: Cedar, Frame
Security Features: Security System
Waterfront YN: No

Lot Information
Additional Parcels YN: No
Lot Features: Views

Property Information
Stories: 2
Living Area Source: Other
Property Sub Type: Single Family Residence
Property Condition: Actual

Financial

Tax Information
Tax Year: 2016
Tax Source: Municipality
Tax Annual Amount: $22,005

Financial Information
Buyer Financing: Cash

Utilities

Utility Information
Sewer: Septic Tank
Utilities: Trash Collection Public

Location

School Information
Middle Or Junior School: H C Crittenden Middle School
High School: Byram Hills High School
High School District: Byram Hills

Location Information
Hamlet: Armonk
Directions: Rt. 22 to Middle Patent Road to driveway on right. Pass 2 driveways and bear left into #27.
County Or Parish: Westchester County

Public facts

Beds: —
Baths: 2.0
Sq. Ft.: 2,688
Stories: —
Lot Size: 6.63 acres
Style: Single Family Residential
Year Built: 1965
Year Renovated: —
County: Westchester County
APN: 553800A10200100010010000000

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

$1.80M – $2.18M

Reach more buyers when you sell with Redfin. Save up to $18,923 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

Listing by Sotheby's International Realty

VIDEO TOUR

$49,500,000

8 beds9 baths26,079 sq ft

Bedford Corners, NY 10549

Listing by William Raveis-New York LLC

$4,100,000

4 beds7 baths9,000 sq ft

3 Vincent Ln, Armonk, NY 10504

Listing by Julia B Fee Sothebys Int. Rlty

$649,000

Land— sq ft

28 Mclain - Lot 2 St, Bedford Corners, NY 10549

Listing by Berkshire Hathaway HS NY Prop

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

New listings for sale in 10504

NEW 1 DAY AGO

$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

OPEN TODAY, 11AM TO 12:30PM

$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 27 Middle Patent Rd

Data from public records.

Address	Redfin Estimate
15 Middle Patent Road, Armonk, NY 7 Beds \| 5.5 Baths \| 7138 Sq. Ft.	$6,958,133
4 Elm Place, Armonk, NY 5 Beds \| 3.5 Baths \| 3600 Sq. Ft.	$1,454,723

Address	Redfin Estimate
31 Middle Patent Road, Armonk, NY - Beds \| 4 Baths \| 5109 Sq. Ft.	$2,532,429
4 Dogwood Drive, Armonk, NY 3 Beds \| 3.5 Baths \| 3685 Sq. Ft.	$1,737,902

Address	Redfin Estimate
21 Middle Patent Road, Armonk, NY - Beds \| 3 Baths \| 3660 Sq. Ft.	$2,992,838
2 Hemlock Rise, Armonk, NY 5 Beds \| 5.5 Baths \| 5652 Sq. Ft.	$2,630,909

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2016. This data may not match . Learn more.

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