Off Market Dec 2016 for $1.4M

$2,355,602

Est. refi paymentEst. refi $11,164/mo

•

6,607

sq ft

18 Green Valley Rd, Armonk, NY 10504

About this home

Extremely Private Five Bedroom Mini-Estate on 2 Professionally landscaped acres located in Armonk. The stone and cedar Center Hall Colonial offers Four Bedrooms, Three Full and Two Half Baths. A Two Story Entry Foyer flows beautifully from the Living Room, Banquet-sized Dining Room, Kitchen and Family Room with a vaulted ceiling, an entertainer's delight! Spacious rooms and so many windows let in the beautiful natural light, bringing the outdoors in. 1,056 sq ft lower level recreation room with surround sound has a Certificate of Occupancy and is included in the total square footage. A fully equipped 700 square foot, One Bedroom, One Bath Guest Cottage with cathedral ceiling is also located on the property and is included in the total square footage, bed and bath count. Beautifully landscaped grounds with Perennial Gardens, Fieldstone Walls, Bluestone Patios, Deck, Inground Pool with Lap Lane and Spa complete this property. Perfect for year round entertaining..not to be missed! Additional Information: Amenities:Guest Quarters,HeatingFuel:Oil Above Ground,ParkingFeatures:2 Car Attached,2 Car Detached,

Single-familyProperty Type

1969Year Built

2 acresLot Size

$357Est. Price/Sq.Ft.

4 spacesParking

Listing by Jeanne Looney • William Raveis Real Estate

Listing by Claudia Costa • William Raveis Real Estate

Bought with Philly Scoca • Village Realty of Westchester

Redfin checked: 3 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #H4618237

Redfin Estimate

$2,355,602

$918K since sold in December 2016$150K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 28.2% lower than the average sale price ($3.28M) of 6 comparable homes.

SOLD AUG 21, 2026
$3,205,000
A
4 beds4.5 baths4,616 sq ft
469 Taconic Rd, Greenwich, CT 06831
SOLD AUG 21, 2026
$3,950,000
B
5 beds5 baths5,163 sq ft
10 Gaston Farm Rd, Greenwich, CT 06831
SOLD AUG 4, 2026
$2,555,000
C
5 beds3.5 baths4,155 sq ft
1 Redbrooke Pl, Armonk, NY 10504
Listing by Julia B Fee Sothebys Int. Rlty
SOLD AUG 13, 2026
$3,269,500
D
4 beds4.5 baths5,477 sq ft
9 Gifford Lake Dr, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD SEP 1, 2026
$2,600,000
E
5 beds5.5 baths6,296 sq ft
86 Old Byram Lake Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
SOLD JUL 30, 2026
$4,100,000
F
5 beds4.5 baths4,183 sq ft
118 Butternut Hollow Rd, Greenwich, CT 06830

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

Earn from this home

Sell

$1,306,306

Est. take-home

List your home with Redfin and save $23,556

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 10504, NY

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

105.9%

+0.1% MoM

Median sale price

$1.9M

$152K MoM

Avg. days on market

21d

4 days MoM

Recently sold homes

5 MoM

New listings for sale

$1,595,000
3 beds3.5 baths3,273 sq ft
3 Cider Mill Cir, Armonk, NY 10504
Listing by William Raveis Real Estate
$2,899,900
5 beds7 baths7,375 sq ft
24 Meadow Hill Pl, Armonk, NY 10504
Listing by Compass Greater NY, LLC
See all

Provided by Redfin

Sale history for 18 Green Valley Rd

Date

Event

Price

OneKey® MLS as Distributed by MLS Grid #H6249330

Jun 6, 2023

Listing Removed

—

May 17, 2023

Listed

$1,800,000

$272/sq ft

OneKey® MLS as Distributed by MLS Grid #H6232635

May 16, 2023

Listing Removed

—

Apr 19, 2023

Price Changed

$1,849,000

$280/sq ft

Feb 16, 2023

Listed

$1,899,000

$287/sq ft

OneKey® MLS as Distributed by MLS Grid #H6175058

Aug 31, 2022

Listing Removed

—

May 31, 2022

Listed

$1,900,000

$288/sq ft

HGMLS #4618237

Dec 30, 2016

Price Changed

$1,437,500

$218/sq ft

Dec 30, 2016

Sold

$1,437,500

$218/sq ft

Nov 7, 2016

Contingent

—

Nov 7, 2016

Price Changed

$1,499,000

$227/sq ft

Aug 12, 2016

Relisted

—

Jul 28, 2016

Delisted

—

Jul 11, 2016

Price Changed

$1,499,000

$227/sq ft

Apr 29, 2016

Listed

$1,549,000

$234/sq ft

OneKey® MLS as Distributed by MLS Grid #H4618237

Dec 30, 2016

Sold

$1,437,500

$218/sq ft

Apr 29, 2016

Listed

$1,499,000

$227/sq ft

HGMLS #4412892

Dec 16, 2014

Delisted

—

Sep 10, 2014

Listed

Aug 22, 2014

Delisted

—

May 23, 2014

Listed

OneKey® MLS as Distributed by MLS Grid #H4412892

Aug 22, 2014

Listing Removed

—

May 23, 2014

Listed

$1,585,000

$240/sq ft

HGMLS #2812830

Mar 14, 2014

Price Changed

$219/sq ft

Aug 13, 2008

Delisted

—

Jul 2, 2008

Price Changed

$223/sq ft

Apr 21, 2008

Listed

$223/sq ft

Public Records

Sep 11, 2008

Sold

$1,450,000

$219/sq ft

HGMLS #2804399

Apr 21, 2008

Delisted

—

Feb 15, 2008

Listed

** Price available after signing in.

Year

Property tax

Land + Additions

Assessment*

2026

$33,714 (+2.0%)

$3,000 + $27,100

$30,100

2025

$33,053 (−1.6%)

$3,000 + $27,100

$30,100

2024

$33,577 (+4.4%)

$3,000 + $27,100

$30,100

2023

$32,147 (+2.4%)

$3,000 + $27,100

$30,100

2022

$31,380 (+1.5%)

$3,000 + $27,100

$30,100

2021

$30,912 (−0.3%)

$3,000 + $27,100

$30,100

2020

$30,998

$3,000 + $27,100

$30,100

2019

$31,013

$3,000 + $27,100

$30,100

2018

$3,000 + $27,100

$30,100

2017

$3,000 + $27,100

$30,100

2016

$3,000 + $27,100

$30,100

2014

$3,000 + $25,100

$28,100

2013

$3,000 + $25,100

$28,100

2012

$3,000 + $25,100

$28,100

2011

$3,000 + $25,100

$28,100

2010

$3,000 + $25,100

$28,100

2009

$3,000 + $25,100

$28,100

2008

$3,000 + $33,400

$36,400

Tax history for 18 Green Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$33,714 (+2.0%)

$3,000 + $27,100

$30,100

2025

$33,053 (−1.6%)

$3,000 + $27,100

$30,100

2024

$33,577 (+4.4%)

$3,000 + $27,100

$30,100

2023

$32,147 (+2.4%)

$3,000 + $27,100

$30,100

2022

$31,380 (+1.5%)

$3,000 + $27,100

$30,100

2021

$30,912 (−0.3%)

$3,000 + $27,100

$30,100

2020

$30,998

$3,000 + $27,100

$30,100

2019

$31,013

$3,000 + $27,100

$30,100

2018

$3,000 + $27,100

$30,100

2017

$3,000 + $27,100

$30,100

2016

$3,000 + $27,100

$30,100

2014

$3,000 + $25,100

$28,100

2013

$3,000 + $25,100

$28,100

2012

$3,000 + $25,100

$28,100

2011

$3,000 + $25,100

$28,100

2010

$3,000 + $25,100

$28,100

2009

$3,000 + $25,100

$28,100

2008

$3,000 + $33,400

$36,400

*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

2 Acres

Year renovated

—

Sq. Ft.

5,927

Year built

1969

Style

Other

County

Westchester County

APN

553800A10800200020370000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 30, 2026.

Property details

Parking

Parking Information
Parking Total: 4
Parking Features: Attached, Detached

Interior

Virtual Tour Information

Fireplace Information
Has Fireplace
Fireplaces Total: 1

Heating & Cooling
Cooling: Central Air
Heating: Baseboard, Electric, Hot Water, Oil

Interior Features
Interior Features: Cathedral Ceiling(s),Eat-in Kitchen,Formal Dining,Granite Counters,Primary Bathroom,Walk-In Closet(s)
Appliances: Oil Water Heater
Flooring: Hardwood
Levels: Three Or More
Patio And Porch Features: Deck, Patio

Room Information
Basement YN: Yes
Attic: Full,Unfinished
Rooms Total: 10
Basement: Finished, Full

Bathroom Information
Bathrooms Full: 4
Bathrooms Half: 2

Exterior

Exterior Features
Construction Materials: Cedar, Frame, Shake Siding
Fencing: Fenced
Other Structures: Outbuilding
Waterfront YN: No

Pool Information
Pool Features: In Ground

Lot Information
Additional Parcels YN: No
Lot Features: Cul-De-Sac

Property Information
Stories: 3
Living Area Source: Public Records
Property Sub Type: Single Family Residence
Property Condition: Actual

Financial

Tax Information
Tax Year: 2016
Tax Source: Municipality
Tax Annual Amount: $30,383

Financial Information
Buyer Financing: Conventional

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: Route 22 to Creemer, left onto Green Valley to #18 on the right
County Or Parish: Westchester County

Public facts

Beds: —
Baths: 3.0
Sq. Ft.: 5,927
Stories: —
Lot Size: 2 acres
Style: Other
Year Built: 1969
Year Renovated: —
County: Westchester County
APN: 553800A10800200020370000000

Home facts updated by county records on Jul 30, 2026

Around this home

Schools

Coman Hill School

Public K-2 • Assigned • 1.4mi

H C Crittenden Middle School

Public 6-8 • Assigned • 1.6mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 1.0mi

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, 14 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

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

Estimated sale price

$2.24M – $2.71M

Reach more buyers when you sell with Redfin. Save up to $23,556 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

NEW CONSTRUCTION

$3,995,000

6 beds8 baths10,824 sq ft

41 Mead Rd, Armonk, NY 10504

Listing by Corcoran Legends Realty

$5,850,000

6 beds7 baths12,343 sq ft

9 Terrace Cir, Armonk, NY 10504

Listing by Compass Greater NY, LLC

$6,790,000

7 beds8 baths14,066 sq ft

4 Cowdray Park Dr, Armonk, NY 10504

$990,000

1 bed2 baths— sq ft

150 Bedford Rd, Armonk, NY 10504

Listing by Coldwell Banker Realty

$3,790,000

7 beds6.5 baths5,957 sq ft

50 Hickory Kingdom Rd, Bedford, NY 10506

Listing by Howard Hanna Rand Realty

NEW CONSTRUCTION

$3,075,000

4 beds4 baths5,641 sq ft

2 Israel Townsend Hl, Armonk, NY 10504

Listing by Compass Greater NY, LLC

New listings for sale in 10504

$1,595,000

3 beds3.5 baths3,273 sq ft

3 Cider Mill Cir, Armonk, NY 10504

Listing by William Raveis Real Estate

$2,899,900

5 beds7 baths7,375 sq ft

24 Meadow Hill Pl, Armonk, NY 10504

Listing by Compass Greater NY, LLC

Home values near 18 Green Valley Rd

Data from public records.

Address	Redfin Estimate
22 Green Valley Rd, Armonk, NY 3 Beds \| 2.5 Baths \| 2638 Sq. Ft.	$1,500,970
19 Green Valley Rd, Armonk, NY - Beds \| 2 Baths \| 3316 Sq. Ft.	$1,624,653

Address	Redfin Estimate
17 Green Valley Rd, Armonk, NY 5 Beds \| 4.5 Baths \| 4398 Sq. Ft.	$2,274,879
15 Green Valley Rd, Armonk, NY - Beds \| 2 Baths \| 2970 Sq. Ft.	$1,204,846

Address	Redfin Estimate
4 Green Valley Rd, Armonk, NY - Beds \| 3 Baths \| 2604 Sq. Ft.	$1,279,449
25 Green Valley Rd, Armonk, NY - Beds \| 4 Baths \| 3114 Sq. Ft.	$2,059,411

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

Neighborhoods
Zip Codes
Minor Civil Divisions
Cities
Popular Searches

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

10570 homes for sale
06830 homes for sale
06831 homes for sale
10549 homes for sale
10604 homes for sale

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