Google street view image for 823 Mount Kisco Rd, Armonk, NY 10504

Off market jan 2006 for $915K

$1,849,598

Est. refi paymentEst. refi $5,897/mo

—

•

1 ba

•

820

sq ft

823 Mount Kisco Rd, Armonk, NY 10504

About this home

823 Mount Kisco Rd is a 820 square foot house on a 3.02 acre lot with 1 bathroom. - it last sold on January 27, 2006 for $915,000. Based on Redfin's Armonk data, we estimate the home's value is $1,849,598.

Single-familyProperty Type

1952Year Built

3.02 acresLot Size

$2,256Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,849,598

$935K since sold in January 2006$50K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 25.1% lower than the average sale price ($2.47M) of 6 comparable homes.

SOLD SEP 1, 2026
$2,600,000
A
5 beds5.5 baths6,296 sq ft
86 Old Byram Lake Rd, Armonk, NY 10504
Listing by William Raveis Real Estate
SOLD AUG 19, 2026
$2,818,000
B
5 beds5.5 baths5,726 sq ft
77 Byram Ridge Rd, Armonk, NY 10504
Listing by William Raveis-New York, LLC
SOLD AUG 3, 2026
$2,530,000
C
6 beds5 baths5,811 sq ft
17 Wampus Lake Dr, Armonk, NY 10504
Listing by Compass Greater NY, LLC
SOLD MAR 30, 2026
$2,658,000
D
6 beds4.5 baths6,492 sq ft
11 Fawn Ln, Armonk, NY 10504
Listing by Berkshire Hathaway HS NY Prop
SOLD AUG 17, 2026
$2,032,500
E
5 beds5.5 baths6,108 sq ft
16 Carolyn Pl, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD MAY 1, 2026
$2,180,000
F
4 beds4.5 baths5,541 sq ft
17 Hammond Ridge Rd, Bedford Corners, NY 10549
Listing by William Raveis Real Estate

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Earn from this home

Sell

$1,418,346

Est. take-home

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Refinance

Est. cash available

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Rent

$1,810/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

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
$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 823 Mount Kisco Rd

Year

Property tax

Land + Additions

Assessment*

2026

$7,886 (+2.3%)

$3,500 + $4,500

$8,000

2025

$7,710

$3,500 + $4,500

$8,000

2024

$7,707 (+5.7%)

$3,500 + $4,500

$8,000

2023

$7,293 (+2.9%)

$3,500 + $4,500

$8,000

2022

$7,089 (+1.8%)

$3,500 + $4,500

$8,000

2021

$6,964 (−0.3%)

$3,500 + $4,500

$8,000

2020

$6,988 (+0.4%)

$3,500 + $4,500

$8,000

2019

$6,959

$3,500 + $4,500

$8,000

2018

$3,500 + $4,500

$8,000

2017

$3,500 + $4,500

$8,000

2016

$3,500 + $4,500

$8,000

2014

$3,500 + $4,500

$8,000

2013

$3,500 + $4,500

$8,000

2012

$3,500 + $4,500

$8,000

2011

$3,500 + $4,500

$8,000

2010

$3,500 + $4,500

$8,000

2009

$3,500 + $4,500

$8,000

2008

$3,500 + $4,500

$8,000

Tax history for 823 Mount Kisco Rd

Year

Property tax

Land + Additions

Assessment*

2026

$7,886 (+2.3%)

$3,500 + $4,500

$8,000

2025

$7,710

$3,500 + $4,500

$8,000

2024

$7,707 (+5.7%)

$3,500 + $4,500

$8,000

2023

$7,293 (+2.9%)

$3,500 + $4,500

$8,000

2022

$7,089 (+1.8%)

$3,500 + $4,500

$8,000

2021

$6,964 (−0.3%)

$3,500 + $4,500

$8,000

2020

$6,988 (+0.4%)

$3,500 + $4,500

$8,000

2019

$6,959

$3,500 + $4,500

$8,000

2018

$3,500 + $4,500

$8,000

2017

$3,500 + $4,500

$8,000

2016

$3,500 + $4,500

$8,000

2014

$3,500 + $4,500

$8,000

2013

$3,500 + $4,500

$8,000

2012

$3,500 + $4,500

$8,000

2011

$3,500 + $4,500

$8,000

2010

$3,500 + $4,500

$8,000

2009

$3,500 + $4,500

$8,000

2008

$3,500 + $4,500

$8,000

*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: 1

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Wood Siding

Property Information
Subdivision Name: SECTION 10103
Living Sq. Ft: 820
Ground Floor Sq. Ft: 820
Building Sq. Ft: 820
Legal Description: M5

Lot Information
# of Buildings: 1
Land Sq. Ft: 131,704
Legal Lot Number: 1
Legal Block Number: 2
School Tax District: BYRAM HILLS
Municipality Name: NORTH CASTLE
Acres: 3.0235
State Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Private
Water Service Type: Private

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: 1.0
Sq. Ft.: 820
Stories: —
Lot Size: 3.02 acres
Style: Single Family Residential
Year Built: 1952
Year Renovated: —
County: Westchester County
APN: 553800A10100300020010000000

Home facts updated by county records on Sep 25, 2026

Around this home

Schools

Wampus School

Public 3-5 • Assigned • 0.9mi

10/10

H C Crittenden Middle School

Public 6-8 • Assigned • 1.1mi

9/10

Byram Hills High School

Public 9-12 • Assigned • 1.4mi

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

$1.76M – $2.13M

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Nearby similar homes

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Listing by William Raveis Real Estate

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Listing by Compass Greater NY, LLC

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Listing by William Raveis Real Estate

NEW CONSTRUCTION

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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

$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 823 Mount Kisco Rd

Data from public records.

Address	Redfin Estimate
819 Mount Kisco Rd, Armonk, NY 3 Beds \| 2 Baths \| 1248 Sq. Ft.	$880,113
811 Mount Kisco Rd, Armonk, NY - Beds \| 5 Baths \| 5924 Sq. Ft.	$2,263,563

Address	Redfin Estimate
815 Mount Kisco Rd, Armonk, NY 4 Beds \| 5.5 Baths \| 7667 Sq. Ft.	$2,037,232
827 Mount Kisco Rd, Armonk, NY - Beds \| 1 Baths \| 1584 Sq. Ft.	$757,916

Address	Redfin Estimate
831 Mount Kisco Rd, Armonk, NY - Beds \| 6 Baths \| 7588 Sq. Ft.	$2,941,880
837 Mount Kisco Rd, Armonk, NY 5 Beds \| 7 Baths \| 10000 Sq. Ft.	$4,254,364

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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 823 Mount Kisco Rd

Tax history for 823 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 823 Mount Kisco Rd

More real estate resources