Google street view image for 129 Old Mount Kisco Rd, Armonk, NY 10504

Off market sep 2025 for $650K

$855,895

Est. refi paymentEst. refi $6,561/mo

—

•

2 ba

•

1,740

sq ft

129 Old Mount Kisco Rd, Armonk, NY 10504

About this home

129 Old Mount Kisco Rd is a 1,740 square foot house on a 10,663 square foot lot with 2 bathrooms. - it last sold on September 22, 2025 for $650,000. Based on Redfin's Armonk data, we estimate the home's value is $855,895.

Single-familyProperty Type

10,663 sq ftLot Size

$492Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$855,895

$206K since sold in September 2025$44K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.5% lower than the average sale price ($887K) of 6 comparable homes.

SOLD OCT 6, 2026
$965,000
A
3 beds2.5 baths1,557 sq ft
15 Maryland Ave, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD MAR 20, 2026
$837,500
B
3 beds2 baths2,000 sq ft
8 Maryland Ave, Armonk, NY 10504
Listing by Douglas Elliman Real Estate
SOLD MAY 22, 2026
$660,000
C
2 beds2 baths1,382 sq ft
58 Whippoorwill Rd E, Armonk, NY 10504
Listing by Compass Greater NY, LLC
SOLD DEC 10, 2025
$880,000
D
3 beds1.5 baths1,475 sq ft
16 Annadale St, Armonk, NY 10504
Listing by Compass Greater NY, LLC
SOLD JUN 22, 2026
$655,000
E
2 beds1 bath1,176 sq ft
32 Glendale Ave, Armonk, NY 10504
Listing by Berkshire Hathaway HS NY Prop
SOLD OCT 15, 2026
$1,325,000
F
3 beds2 baths1,572 sq ft
11 Creemer Rd, Armonk, NY 10504
Listing by Compass Greater NY, LLC

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Earn from this home

Sell

$294,682

Est. take-home

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Est. cash available

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Rent

$2,901/mo

Redfin rental estimate

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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

$2,495,000
3 beds4 baths4,120 sq ft
1 Fox Ridge Ct, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
OPEN SUN, 1PM TO 3PM
$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 129 Old Mount Kisco Rd

Year

Property tax

Land + Additions

Assessment*

2026

$8,832 (+2.1%)

$1,400 + $7,000

$8,400

2025

$8,654 (+4.7%)

$1,400 + $7,000

$8,400

2024

$8,264 (+5.5%)

$1,400 + $7,000

$8,400

2023

$7,832 (+2.7%)

$1,400 + $7,000

$8,400

2022

$7,625 (+1.7%)

$1,400 + $7,000

$8,400

2021

$7,497 (−1.0%)

$1,400 + $7,000

$8,400

2020

$7,575 (+1.5%)

$1,400 + $7,000

$8,400

2019

$7,466

$1,400 + $7,000

$8,400

2018

$1,400 + $7,000

$8,400

2017

$1,400 + $7,000

$8,400

2016

$1,400 + $7,000

$8,400

2014

$1,400 + $7,000

$8,400

2013

$1,400 + $7,000

$8,400

2012

$1,400 + $7,000

$8,400

2011

$1,400 + $7,000

$8,400

2010

$1,400 + $7,000

$8,400

2009

$1,400 + $7,000

$8,400

2008

$1,400 + $7,000

$8,400

Tax history for 129 Old Mount Kisco Rd

Year

Property tax

Land + Additions

Assessment*

2026

$8,832 (+2.1%)

$1,400 + $7,000

$8,400

2025

$8,654 (+4.7%)

$1,400 + $7,000

$8,400

2024

$8,264 (+5.5%)

$1,400 + $7,000

$8,400

2023

$7,832 (+2.7%)

$1,400 + $7,000

$8,400

2022

$7,625 (+1.7%)

$1,400 + $7,000

$8,400

2021

$7,497 (−1.0%)

$1,400 + $7,000

$8,400

2020

$7,575 (+1.5%)

$1,400 + $7,000

$8,400

2019

$7,466

$1,400 + $7,000

$8,400

2018

$1,400 + $7,000

$8,400

2017

$1,400 + $7,000

$8,400

2016

$1,400 + $7,000

$8,400

2014

$1,400 + $7,000

$8,400

2013

$1,400 + $7,000

$8,400

2012

$1,400 + $7,000

$8,400

2011

$1,400 + $7,000

$8,400

2010

$1,400 + $7,000

$8,400

2009

$1,400 + $7,000

$8,400

2008

$1,400 + $7,000

$8,400

*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: 2

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Wood Siding

Property Information
Subdivision Name: ALBERT & ROSE DOD PROP
Living Sq. Ft: 1,740
Ground Floor Sq. Ft: 1,740
Building Sq. Ft: 1,740
Legal Description: M5

Lot Information
# of Buildings: 1
Land Sq. Ft: 10,663
Legal Lot Number: 25
Legal Block Number: 1
School Tax District: BYRAM HILLS
Municipality Name: NORTH CASTLE
Acres: 0.2448
State Use Description: SINGLE FAMILY RESID

Utility Information
Water Service Type: Private

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: 2.0
Sq. Ft.: 1,740
Stories: —
Lot Size: 10,663 square feet
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: Westchester County
APN: 553800A10800100010250000000

Home facts updated by county records on Sep 25, 2026

Around this home

Schools

Wampus School

Public 3-5 • Assigned • 0.5mi

10/10

H C Crittenden Middle School

Public 6-8 • Assigned • 0.7mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 1.1mi

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

5/10 Heat Factor

7 days above 97° expected this year, 15 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

$814,000 – $985,000

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Nearby similar homes

$895,000

4 beds2 baths3,059 sq ft

22 Elizabeth Pl, Armonk, NY 10504

Listing by Owner Entry.com

$990,000

1 bed2 baths— sq ft

150 Bedford Rd, Armonk, NY 10504

Listing by Coldwell Banker Realty

$5,400,000

7 beds8.5 baths11,521 sq ft

2 Hollow Ridge Rd, Armonk, NY 10504

Listing by Compass Greater NY, LLC

NEW CONSTRUCTION

$3,795,000

6 beds8 baths10,824 sq ft

41 Mead Rd, Armonk, NY 10504

Listing by Corcoran Legends Realty

$1,780,000

4 beds3.5 baths2,913 sq ft

406 Bedford Rd, Chappaqua, NY 10514

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

$2,495,000

3 beds4 baths4,120 sq ft

1 Fox Ridge Ct, Armonk, NY 10504

Listing by Houlihan Lawrence Inc.

OPEN SUN, 1PM TO 3PM

$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

Home values near 129 Old Mount Kisco Rd

Data from public records.

Address	Redfin Estimate
135 Old Mount Kisco Road, Armonk, NY 3 Beds \| 2 Baths \| 1811 Sq. Ft.	$913,614
122 Old Mount Kisco Road, Armonk, NY - Beds \| 1 Baths \| 1779 Sq. Ft.	$2,847,083

Address	Redfin Estimate
127 Old Mount Kisco Road, Armonk, NY 2 Beds \| 2.5 Baths \| 1576 Sq. Ft.	$878,715
137 Old Mount Kisco Road, Armonk, NY - Beds \| 1 Baths \| 1378 Sq. Ft.	$687,294

Address	Redfin Estimate
136 Old Mount Kisco Road, Armonk, NY - Beds \| 2 Baths \| 2767 Sq. Ft.	$994,943
139 Old Mount Kisco Road, Armonk, NY - Beds \| 1 Baths \| 1728 Sq. Ft.	$834,602

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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 129 Old Mount Kisco Rd

Tax history for 129 Old Mount Kisco 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 129 Old Mount Kisco Rd

More real estate resources