Google street view image for 18 Windmill Rd Unit A, Armonk, NY 10504

Off market oct 2004 for $1.2M

$1,581,159

Est. refi paymentEst. refi $9,248/mo

—

•

3 ba

•

2,756

sq ft

18 Windmill Rd Unit A, Armonk, NY 10504

About this home

18 Windmill Rd Unit A is a 2,756 square foot house on a 1.49 acre lot with 3 bathrooms. - it last sold on October 13, 2004 for $1,216,300. Based on Redfin's Armonk data, we estimate the home's value is $1,581,159.

Single-familyProperty Type

1958Year Built

1.49 acresLot Size

$574Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,581,159

$365K since sold in October 2004$8,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12% lower than the average sale price ($1.80M) 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 SEP 10, 2026
$1,900,000
B
4 beds3 baths3,594 sq ft
53 Windmill Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
SOLD JUN 30, 2026
$2,025,000
C
4 beds3 baths3,185 sq ft
6 Spruce Holw, Armonk, NY 10504
Listing by William Raveis Real Estate
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 SEP 11, 2026
$2,062,125
E
4 beds3.5 baths3,014 sq ft
17 Byram Lake Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
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

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Earn from this home

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$1,111,316

Est. take-home

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Est. cash available

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Market trends in 10504, NY

Last updated October 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 TODAY, 12PM TO 3PM
$2,995,000
5 beds4.5 baths3,300 sq ft
12 Wampus Close, Armonk, NY 10504
Listing by William Raveis Real Estate
See all

Provided by Redfin

Sale history for 18 Windmill Rd Unit A

Year

Property tax

Land + Additions

Assessment*

2026

$21,947 (+1.9%)

$3,300 + $15,100

$18,400

2025

$21,542 (−1.5%)

$3,300 + $15,100

$18,400

2024

$21,870 (+4.1%)

$3,300 + $15,100

$18,400

2023

$21,006 (+0.4%)

$3,300 + $15,100

$18,400

2022

$20,926 (+1.0%)

$3,300 + $15,100

$18,400

2021

$20,714 (−0.3%)

$3,300 + $15,100

$18,400

2020

$20,778

$3,300 + $15,100

$18,400

2019

$20,779

$3,300 + $15,100

$18,400

2018

$3,300 + $15,100

$18,400

2017

$3,300 + $15,100

$18,400

2016

$3,300 + $15,100

$18,400

2014

$3,300 + $15,100

$18,400

2013

$3,300 + $15,100

$18,400

2012

$3,300 + $15,100

$18,400

2011

$3,300 + $15,100

$18,400

2010

$3,300 + $15,100

$18,400

2009

$3,300 + $15,100

$18,400

2008

$3,300 + $15,100

$18,400

Tax history for 18 Windmill Rd Unit A

Year

Property tax

Land + Additions

Assessment*

2026

$21,947 (+1.9%)

$3,300 + $15,100

$18,400

2025

$21,542 (−1.5%)

$3,300 + $15,100

$18,400

2024

$21,870 (+4.1%)

$3,300 + $15,100

$18,400

2023

$21,006 (+0.4%)

$3,300 + $15,100

$18,400

2022

$20,926 (+1.0%)

$3,300 + $15,100

$18,400

2021

$20,714 (−0.3%)

$3,300 + $15,100

$18,400

2020

$20,778

$3,300 + $15,100

$18,400

2019

$20,779

$3,300 + $15,100

$18,400

2018

$3,300 + $15,100

$18,400

2017

$3,300 + $15,100

$18,400

2016

$3,300 + $15,100

$18,400

2014

$3,300 + $15,100

$18,400

2013

$3,300 + $15,100

$18,400

2012

$3,300 + $15,100

$18,400

2011

$3,300 + $15,100

$18,400

2010

$3,300 + $15,100

$18,400

2009

$3,300 + $15,100

$18,400

2008

$3,300 + $15,100

$18,400

*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: 3

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

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Exterior

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

Property Information
Subdivision Name: WINDMILL FARM SEC 04
Living Sq. Ft: 2,756
Ground Floor Sq. Ft: 2,756
Building Sq. Ft: 3,256
Legal Description: M6B

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

Lot Information
# of Buildings: 1
Land Sq. Ft: 65,007
Legal Lot Number: 19
Legal Block Number: 2
School Tax District: BYRAM HILLS
Municipality Name: NORTH CASTLE
Acres: 1.4924
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.: 2,756
Stories: —
Lot Size: 1.49 acres
Style: Single Family Residential
Year Built: 1958
Year Renovated: —
County: Westchester County
APN: 553800A10100400020190000000

Home facts updated by county records on Jul 30, 2026

Around this home

Schools

K - 12
Preschool & daycare

Coman Hill School

Public K-2 • Assigned • 0.5mi

H C Crittenden Middle School

Public 6-8 • Assigned • 1.8mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 0.8mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

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

$1.50M – $1.82M

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Nearby similar homes

OPEN TODAY, 12PM TO 3PM

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5 beds4.5 baths3,300 sq ft

12 Wampus Close, Armonk, NY 10504

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Listing by William Raveis Real Estate

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Listing by Coldwell Banker Realty

$5,400,000

7 beds8.5 baths11,521 sq ft

2 Hollow Ridge Rd, Armonk, NY 10504

Informal dining area • Outdoor kitchen • 10-foot ceilings

Listing by Compass Greater NY, LLC

$895,000

3 beds2 baths3,059 sq ft

22 Elizabeth Pl, Armonk, NY 10504

Artist studio spaces • Skylights • Spiral staircase

Listing by Owner Entry.com

New listings for sale in 10504

OPEN TODAY, 12PM TO 3PM

$2,995,000

5 beds4.5 baths3,300 sq ft

12 Wampus Close, Armonk, NY 10504

Walk-in closet • Renovated bath • Heated floors

Listing by William Raveis Real Estate

Home values near 18 Windmill Rd Unit A

Data from public records.

Address	Redfin Estimate
18 Windmill Road, Armonk, NY 4 Beds \| 3.5 Baths \| 2717 Sq. Ft.	$1,922,673
28 Windmill Road, Armonk, NY - Beds \| 3 Baths \| 2459 Sq. Ft.	$1,366,126
21 Windmill Road, Armonk, NY 3 Beds \| 3 Baths \| 3553 Sq. Ft.	$1,182,305
24 Windmill Road, Armonk, NY 3 Beds \| 3 Baths \| 2384 Sq. Ft.	$1,304,714
27 Long Pond Road, Armonk, NY - Beds \| 3 Baths \| 2407 Sq. Ft.	$1,508,863
6 Pond Lane, Armonk, NY 3 Beds \| 4 Baths \| 4676 Sq. Ft.	$1,742,964
25 Long Pond Road, Armonk, NY 3 Beds \| 2.5 Baths \| 2000 Sq. Ft.	$1,232,928

Address	Redfin Estimate
30 Windmill Road, Armonk, NY 5 Beds \| 4.5 Baths \| 3925 Sq. Ft.	$1,927,074
22 Windmill Road, Armonk, NY - Beds \| 3 Baths \| 2166 Sq. Ft.	$1,245,186
19 Windmill Road, Armonk, NY 3 Beds \| 3 Baths \| 2515 Sq. Ft.	$1,506,801
23 Windmill Road, Armonk, NY 3 Beds \| 2.5 Baths \| 2100 Sq. Ft.	$1,415,591
21 Long Pond Road, Armonk, NY - Beds \| 3 Baths \| 4095 Sq. Ft.	$1,762,449
4 Mill Lane, Armonk, NY 3 Beds \| 3 Baths \| 3066 Sq. Ft.	$1,574,603
23 Long Pond Road, Armonk, NY - Beds \| 3 Baths \| 2100 Sq. Ft.	$1,195,139

Address	Redfin Estimate
25 Windmill Road, Armonk, NY - Beds \| 6 Baths \| 4440 Sq. Ft.	$2,173,008
31 Windmill Road, Armonk, NY - Beds \| 3 Baths \| 3450 Sq. Ft.	$1,565,022
20 Windmill Road, Armonk, NY - Beds \| 3 Baths \| 3019 Sq. Ft.	$1,568,690
16 Windmill Road, Armonk, NY - Beds \| 4 Baths \| 4131 Sq. Ft.	$1,961,433
5 Pond Lane, Armonk, NY 4 Beds \| 3 Baths \| 3746 Sq. Ft.	$1,753,788
1 Pond Lane, Armonk, NY 3 Beds \| 2 Baths \| 2646 Sq. Ft.	$1,447,271
3 Pond Lane, Armonk, NY - Beds \| 3 Baths \| 3810 Sq. Ft.	$1,564,669

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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 18 Windmill Rd Unit A

Tax history for 18 Windmill Rd Unit A

Property details

Around this home

Schools

Lifestyle

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 10504

Home values near 18 Windmill Rd Unit A

More real estate resources