Westchester County  »  10536  »  Route 100  »  21 Route 100

21 Route 100, Katonah, NY 10536 - Property report

Also known as: 21 Route 100

Property image for 21 Route 100, Katonah, NY 10536
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Property type

One Family Year-Round Residence (210)

Year built

1934

Acreage

2.39

General information

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Address
Primary address
21 Route 100
ZIP code
10536
County
Westchester
SWIS code
Town of Somers
Parcel ID
59.5-1-4

Owner

Find out who owns 21 Route 100, Katonah, NY 10536. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025
Current property tax
$15,665
Zoning & Use
Zoning
R-120
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
2,647
Buildings on lot
1
Stories
1.5
Year built
1934
AC
No
Bathrooms
2
Condition
Normal
Exterior wall
Wood
Building style
Cape cod
Kitchen
1
Basement
3
Fireplaces
2
Heating
Hot water/steam
Fuel
Oil
First story sq. ft.
Lot
Acreage
2.39
Water
None
Sewer
Private

Area overview

Walk score
3 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
0 /100.  Minimal Bike Infrastructure
School district
555201

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 21 Route 100, Katonah, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 21 Route 100, Katonah, NY 10536

No recently recorded sales for this property.

More about Westchester County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 21 Route 100, Katonah, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025
Current property tax
$15,665
Base tax
$16,342
Recent tax assessments
Market value
$796,610
Land value
$214,689
Building value
$581,921
Assessed value
$70,500

More about Westchester County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2025 $796,610 $70,500 231.7991 $16,342 +1.89%
2024 $720,859 $70,500 227.5018 $16,039 +3.50%
2023 $726,056 $70,500 219.8185 $15,497 +1.50%
2022 $652,174 $70,500 216.5655 $15,268 -6.02%
2021 $91,100 $75,900 214.0401 $16,246 +1.91%
2020 $91,100 $75,900 210.03211 $15,941 +1.12%
2019 $91,100 $75,900 207.702807 $15,765 +2.42%
2018 $91,100 $75,900 202.7994 $15,392 +1.86%
2017 $91,100 $75,900 199.089429 $15,111 +0.47%
2016 $91,100 $75,900 198.155194 $15,040 +0.13%
Permits

Permit information for 21 Route 100, Katonah, NY

No recently recorded permits for this property.

Neighborhood

Somers residential market stats

Access a detailed real estate market overview of Somers so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Somers and compare it to other neighborhoods in Westchester.

Median sale price

$655,000

4.3% Y-o-Y

Median price/sq. ft.

$400

-0.2% Y-o-Y

Westchester county median sale price

$850,000

4.9% Y-o-Y

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
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Access the detailed traffic volume map for 21 Route 100, Katonah, NY 10536 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
St Patrick School NR Private PK-8 146 1.87
St Patrick School NR Private PK-8 146 1.87
Putnam Northern Westchester Boces NR Public K-12 326 2.17
Katonah Elementary School 9 Public K-5 407 2.94
Bedford Hills Elementary School 7 Public PK, K-5 282 3.01
Bedford Hills Elementary School 7 Public PK, K-5 282 3.01
The Seed Day Care Center NR Private 0 3.02
Seven Bridges Middle School 10 Public 5-8 503 3.02
Brookside School 9 Public K-3 519 3.18
Our Montessori School NR Private PK-5 81 3.26
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
St Patrick School NR Private PK-8 146 1.87
Yeshiva and Mesivta Ohel Shmuel NR Private 7-12 0 1.91
Putnam Northern Westchester Boces NR Public K-12 326 2.17
Soundview Preparatory School NR Private 7-12 64 2.36
The Seed Day Care Center NR Private 0 3.02
Seven Bridges Middle School 10 Public 5-8 503 3.02
Talmud Torah Bais Yechiel-Nitra NR Private PK-9 250 3.88
Mildred E Strang Middle School 8 Public 6-8 794 4.04
Fox Lane Middle School 5 Public 6-8 765 5.53
Somers Middle School 7 Public 6-8 569 6.16
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Yeshiva and Mesivta Ohel Shmuel NR Private 7-12 0 1.91
Putnam Northern Westchester Boces NR Public K-12 326 2.17
Soundview Preparatory School NR Private 7-12 64 2.36
The Seed Day Care Center NR Private 0 3.02
The Karafin School NR Private 9-12 76 3.88
Yorktown High School 9 Public 9-12 1,104 4.22
The Harvey School NR Private 6-12 354 4.49
Somers Senior High School 8 Public 9-12 980 4.85
Horace Greeley High School 10 Public 9-12 1,152 5.04
Fox Lane High School 7 Public 9-12 1,241 5.30

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 21 Route 100, Katonah, NY

3 Sawyer CT, Katonah 12 Silver Springs CT, Katonah 2 Sawyer CT, Katonah 5 Sawyer CT, Katonah 25 Fieldstone Dr, Katonah 7 Logging Rd, Katonah 9 Stuart Ln, Katonah 10 Logging Rd, Katonah 1 Sawyer CT, Katonah 4 Sugar Hollow CT, Katonah 9 Logging Rd, Katonah 25 Route 100, Katonah 23 Route 100, Katonah 46 Fieldstone Dr, Katonah 45 Fieldstone Dr, Katonah 19 Route 100, Katonah 8 Logging Rd, Katonah 4 Sawyer CT, Katonah 17 Route 100, Katonah

Nearby ZIP codes for 21 Route 100, Katonah, NY

10501, Westchester County, NY 10504, Westchester County, NY 10505, Westchester County, NY 10506, Westchester County, NY 10507, Westchester County, NY 10514, Westchester County, NY 10518, Westchester County, NY 10519, Westchester County, NY 10526, Westchester County, NY 10527, Westchester County, NY 10535, Westchester County, NY 10541, Putnam County, NY 10546, Westchester County, NY 10549, Westchester County, NY 10560, Westchester County, NY 10576, Westchester County, NY 10578, Westchester County, NY 10589, Westchester County, NY 10597, Westchester County, NY 10598, Westchester County, NY

Frequently asked questions

What is the year built for 21 Route 100, Katonah, NY 10536?

The development at 21 Route 100, Katonah, NY 10536 was built in 1934.

What is the total square footage of 21 Route 100, Katonah, NY 10536?

21 Route 100, Katonah, NY 10536 has a total of 2,647 square feet.

What is the assessed value of 21 Route 100, Katonah, NY 10536?

21 Route 100, Katonah, NY 10536 is currently assessed at $70,500.

What are the property taxes for 21 Route 100, Katonah, NY 10536?

The property taxes for 21 Route 100, Katonah, NY 10536 total $16,341.

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